allaboutradiorc

T-Rex 450 V3 Pro Super Combo

2009-05-23T09:07:00.000-07:00

This Kit Includes:

• T-REX 450 PRO Kit Set X1 set
• 325 Carbon blades X1set
• RCE-BL35X 35A Brushless ESC X1
• 430SP Brushless motor(3700KV) X1
• DS410M (Metal Gear)Digital servoX3
• GP750 Head lock gyroX1
• DS520 Digital servoX1

Features:

• Newly designed head block with high rigidity and stability.
• Single piece integrated design of main bearing block and servo mount.
• Single piece integrated design of anti-rotation guide and gyro mount.
• Single piece integrated landing gear.
• Highly stable flybar control system.
• High precision bearing mixing arms.
• Newly designed high resolution swashplate.
• Single piece battery mount with integrated canopy mount designed to bring CG closer to disk plane.
• Highly rigid frame with single piece carbon side and bottom plates.
• Highly efficient shaft driven tail design.
• Weighted tail rotor blade grips to repel centripetal forces.
• Straight-up in-frame rudder servo mount for improved geometry.
• Newly designed aerodynamic canopy.
• Newly designed high torque motor.
• Newly designed high strength main blade grips.

Specifications:

• Length: 635mm
• Height: 230mm
• Main Rotor Diameter: 710mm
• Tail Rotor Diameter: 158mm
• Motor Pinion Gear: 13T
• Main Drive Gear: 150T
• Autorotation Tail Drive Gear: 106T
• Tail Drive Gear: 25T
• Drive Gear Ratio: 1:11.5:4.24
• Weight(w/o power system): 450g
• Flying Weight: Approx. 780g

Photos:


High precision main rotor assembly	High precision bearing mixing arms	Single piece battery mount with integrated canopy mount designed to bring CG closer to disk plane

Single piece integrated design of anti-rotation guide and gyro moun	High precision main drive gear with dual cooling fan design patent	Highly rigid frame with single piece carbon side and bottom plates/1.2mm

Newly designed high resolution swashplate/Single piece integrated design of main bearing block and servo mount	Metal designed tail drive gear assembly	Highly efficient shaft driven tail design

Centripetal forces balance tail rotor holder	Straight-up in-frame rudder servo mount for improved geometry	Metal stabilizer belt

Single piece integrated landing gear	Fiberglass painted canopy	325 Carbon blades

BL430SP extended high torque brushless motor	DS410M Digital metal gear servo	RCE-BL35X 35A Brushless ESC

DS420 Digital gear servo and GP750 head lock gyro

2009-01-15T06:15:00.000-08:00

Rex 450V2 + BL 3500KV + ESC 40A + Alum Case
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Rex 450V2 + BL 3500KV + ESC 40A + Alum Case
US$230.00 US$207.00
Save: 10% off

Specifications:

1. Length: 650mm
2. Height: 230mm
3. Main Rotor: 700mm
4. Tail Rotor: 150mm
5. Motor Gear: 13T/11T
6. Main Gear: 150T
7. Autorotation Tail Drive Gear: 106T
8. Tail Drive Gear: 25T
9. Drive Gear Ratio: 1:11.5:4.24/1:13.6:4.24
10. Weight(without power system): 354g
11. Weight(including power system): 690g

Features:

1. V2 Head Rotor Set (4mm Shaft & Thrust Bearing)
2. V2 Tail Rotor Set
3. Auto-Rotation System
4. Rear Tail Servo Mount
5. Collective Pitch System
6. Tail Rotor Drive Belt System
7. Main Drive Gear with Cooling Fan
8. Professional Servo Control Lever Design
9. Package come with 95% assembled

Included:

1. Heli Kit 450SE V2 with fiber blade
2. Brushless Motor 3500KV
3. ESC 40A

Add to Cart:

* Model: 6ch Electric Helicopter
* Manufactured by: Rex

Rex 450V2 + BL 3500KV + ESC 40A + Alum Case
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Rex 450V2 + BL 3500KV + ESC 40A + Alum Case
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Rex 450V2 + BL 3500KV + ESC 40A + Alum Case
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Wolf-Hobby 450

2009-01-15T05:49:00.000-08:00

Product Description

Wolf-Hobby actualized their dream once more; Wolf-450 congregates WOLF-Hobby’s latest professional achievement in scientific research on electric R/C model. Adopt CCMP control system with tail rotor and Belt driven system, collocate standard Wolf-Hobby electronic device and Wolf-Hobby professional gyro ,combine brand-new 3D airframe designed specially for aerobatic flying with latest electronics and battery fixed mount ,which determined Wolf-450 i s perfect exhibition. Wolf-450 i s airway flying action is exquisite. Dipper and magical balanced. 3D flying action is rapid, fierce, and veracious. The collocation achieved perfect combination, which is 3D flying freshener, i s best choice and flying superior i s performing arena. Wish it can bring you happy, exciting, adventurous 3D flying experience and pleasant surprise.

Package Includes Everything Ready to Fly

Product Specification:

Length: 650mm
Height: 230mm
Diameter for main blade: 700mm
Diameter for tail blade: 150mm
Length for main rotor: 325mm
Motor gear: 11T/13T
Main drive gear: 150T
Tail gear: 106T
Drive gear rate: 1:13, 6:4. 24/1:11, 5:4.24

Transmitter: 6CH /CCPM
Receiver: 6CH
Gyro: gyro
Motor: outrunner brushless 2830/KV3500-3800
Speed controller: 25A
Li poly battery: 11.1V/15C/1600MAH
Sevro: 9g x 4pcs
Weight: 700g

4 CH F4U Corsair 3D Aerobatic Radio Remote Control Electric RC US Navy Warbird Airplane RTF w/ Brushless Motor + ESC + Li-Po

2008-10-06T01:54:00.000-07:00

The American fighter F4U Corsair was an American navy fighter aircraft that entered service with Allied air forces in World War II and the Korean War. During World War II, it was the fighter the Japanese feared the most. The U.S. Navy counted an 11:1 kill ratio for every F4U shot down.

This beautiful F4U Corsair is designed for the hobby enthusiast and offers the characteristics of crash resistance, unique scale appearance and first-class flight performance. Based on its full-scale counterpart, this American fighter aircraft model has a high roll rate and even can do the loops, inverted flights, and other aerobatic moves. Even a beginner can easily setup and stably fly this model. It is also made as a highly maneuverable model for intermediate to expert pilot. This model includes a 4 channel radio transmitter, a speed controller, electric out runner brushless motor, and 3 micro electric servos. Also, The airplane comes completely pre-painted and decorated, the servos and electronics are pre-installed, and the brushless out runner motor and speed control are installed and ready for use. You will definitely enjoy flying this model.

Feature:

4 Channel Full Function Radio Controlled (Aileron, Elevator, Rudder, Taxi)
4 Channel Digital Proportional FM PPM High Quality and Performance Futaba Compatible Radio System
Full aerobatic characteristics; inside loops, outside loops, axial rolls, inverted flight, knife edge, stall turns, hammerheads, and spins are possible
State of the art components such as Brushless Out runner High Torque Motor, Sensor less 25amp Brushless Speed Control, and 1300mah 11.1 Volt Li-Po Battery Pack
Excellent simulation, Classical “F4U Corsair” decals, Perfect appearance, It even can become as an outstanding artwork
The flying speed is quick and stability is outstanding, regardless the high or low speed
The Anti-wind performance is good, you can take off the Radio Control system completely when up-wind flight
It is lighter than the same size and style airplane models
The lifting force is strong, glide is extremely stable. It can finish loops, inverted flight and rolls and other aerobatics easily
The entire fuselage uses the modulation structural design
Assembly is simple, function is stable and reliable, and maintenance is convenient
Rudder helps steer plane on ground on its scale landing gear for easy take off
Ready to Fly in Just Minutes!
Super tough, lightweight airframe!
Perfect appearance and emulation (Scale appearance, great attention has been given to details)
Shock Resistant Reinforced Fuselage and Strong Wings
Can Take Off From Ground or Hand Launched
Ground Take-Off can be performed easily
Huge Wing size, Excellent Flight Performance
Super easy and super stable electric powered scale R/C park flyer for beginner or middle-level users
Stable inverted flight
Fuselage with pre-installed electronics and brushless motor
Superb Quality, Simply the Best RTF Plane you can find!!!
Super stable for beginner, Super low speed for safety, Super low altitude for fun
Fabricated by accurate molds with high fidelity of real airplane
One of the Best Looking Plane in the market
Excellent stability and aerobatic capability
Detailed Body Structure
High roll rate
Digital Proportional Motor Speed Control
Crash Resistant Construction
Easy to Fly, Easy to Control, Super stable for beginner
Slow Speed Flying Capable, Good for Beginner
Suitable for both beginners and experienced pilots
Best choice for Beginner - Advanced pilots
Simulator Kit, Software, and Video CD included (Practice flying airplanes and helicopters on your computer)
Approximately 20 minutes flight time on each charge - Optional Li- poly battery will help to achieve better performance and longer flight time.
All spare parts and accessories are available
Complete Kit, Ready to Fly, Easy to Assemble (Everything is included and 90% assembled -- only required 8 AA batteries for the transmitter to start flying)

Specification:

Wingspan: 1000mm (37.8 inch)
Length: 835mm (30.8 inch)
Flying Weight: 700g (20 oz)
Drive System: Brushless Out Runner High Torque Motor
Propeller: 3 Paddles
Speed Controller: 25A Brushless ESC
Servo: 3X 9g high speed micro servos
Battery: 11.1V 1300mah Li-Polymer
Control system: 4 CH Multifunctional FM Radio Transmitter and Receiver
Radio Control Range: 3000 feet (1000m)

Package Include:

Airplane (90% assembled)
4 Channel Multifunctional FM Radio Transmitter
Wall Battery Balance Charger
High Quality Rechargeable 11.1V 1300mah Li-Polymer Battery
BONUS Simulator Kit and Software (Practice flying helicopters and airplanes on your computer)
BONUS Training Video CD (RC Helicopter & Airplane Education)
English Manual

2008-09-18T20:25:00.001-07:00

ALIGN T-REX 600 CF Kit Combo
Carbon Fibre Frame Combo Version

Features:

* Electric Power System
* Carbon Fiber Frame
* Pre-Painted Fiberglass Canopy
* Carbon Fiber Tail Blades
* Triple-Bearing Block Main Shaft Support
* Fully Driven Tail Auto Rotation System
* Tail Rotor Drive Belt System
* Push-Pull Control Linkage
* Rear Tail Servo Mount
* 10mm Hollow Main Shaft, 8mm Spindle

Specification:

* Length:1200mm(47.25 in)
* Height:388/405mm(15.25 in/16 in)
* Main Blade Length:600mm
* Main Rotor Diameter:1350mm(53.15 in)
* Tail Rotor:240mm(9.45 in)
* Motor Drive Gear:10T(11T optional)
* Main Drive Gear:170T
* Autorotation Tail Drive Gear:180T
* Tail Drive Gear:40T
* Drive Gear Ratio:1:17.0:4.5/1:15.45:4.5
* Weight(w/o main blade):1340g
* Flying Weight:Approx 3000g(6.6 lbs)
* Color carton:64.8x28.7x11.3cm
* Outer carton:66.5x58.5x36.5cm ,6sets/ctn

Package included:

1 x T-REX 600(CF) Kits SetX1 set(w/o main blade)
1 x Fiberglass Canopy
1 x Sticker
1 x Standard Landing Skid
1 x 3D Landing Skid
1 x RCE-BL75G 75A Brushless ESC(Govener Mode)
1 x 600XL Brushless motor
1 x REC-B3X External BEC
1 x 5.1V Step-Down Voltage Regulator
1 x Li-Polymer 7.4V 1900mAh 12C For BEC

Items to be used to make it Ready to Fly:

1 x 600mm Main Blade
1 x Transmitter(6-channel or more,helicopter system)
1 x Receiver(6-channel or more)
3 x Standard servo
1 x Head lock yro
1 x Specialized servo
1 x Pitch gauge
1 x 22.2V 6S Li-Po 3500~4400mAh battery

RC HELLY BARU 2008

2008-09-18T20:25:00.000-07:00

ALIGN T-REX 450SE NEW V2/Silver (3K Carbon Blades)

New T-Rex 450SE V2 coming! New V2 features super cool appearance and main rotor head assembly improvement. Using thrust bearing design on Main rotor holder for great smooth rotation under high speed. During hard 3D flight, its actions are very quick and precision.
V2 is Combined with 430XL high torque brushless motor for great power. Let's experience this New T-REX 450SE V2!

● This kit is for the flyers who want uncompromised performance and quality. This SE arrived with 80% pre-assembled.
● New CNC SSG carbon frame only 1mm, improve the rigidity and perfect for 3D flying.
● CCPM version, new aluminum parts for prompt, precision actions.
● New longer SSG battery mounting plate connects to main frame. It makes the center of gravity closed to rotor blade, and can adjust the center of gravity according to the weight of battery, it reduces the correction when the heli rolling.
● Rigid CNC aluminum rotor head for precision and smooth movements.
● Using new Main rotor holder with thrust bearing and 4mm Feathering shaft, features smooth rotation and stability under high rotation speed.
● Using Ball and Hiller two systems mixing control. Through simple structure of Ball control system, power-saving of Hiller system and CCPM control, can simultaneously control 3 servo for AILE, EVLE, PIT 3 actions. This CCPM control system is great for 3D flying control and extending life cycle of servos.
● New c.g. amended tail blades feature streamlined and quick, make the gyro more efficient.
● New tail rotor control set with dual bearing, features CNC control piece and smooth structure design, get smooth pitch travel.
● Providing flybar weight- When normal flying, you can add the weights on flybar paddles for stable flight. When aerobatic flying, you don't need to add the weight, but you can see the flexibility of 3D actions.
● CNC tail pulley assembly and tail holder are using high rigid aluminum alloy, features wear resistant and falling resistance.

● New gear ratio(4.24:1), suitable for the motor with higher KV, provide more safty.
● Use Aluminum alloy drive pulley and tail drive pulley, high regid and wear resistance. It is efficient to reduce the rotation loss and makes more smooth.
● Using new high strength ball links and stainless steel linkage balls on the whole unit, feature wear resistance, anti-oxidization.
● Tail rotor hub made of stainless steel, very rigid.
● Use 35pcs precision bearing.
● Great stable and sensitive mixing lever design! Can disply the great stability and precision for 3D flight.
● T-REX 450SE special adjustable pitch system, hold rotation system, tail rotor drive belt system! It is a work of great originality for helicopter!

Design Features:

1.New metal head stopper
2.New main rotor head assembly(4mm feathering shaft+ thrust bearing)
3.New main drive gear
4.New fiber-glass painted canopy
5.New anti rotation bracket
6.New high strength main frames
7.New upper bearing block for tail drive gear assembly
8.New longer, c.g. adjustable battery mounting plate
9.New higher strength landing skid
10.New tail boom mount
11.New tail servo mount with dual fixing holes(apply to S9650)
12.New tail pitch assembly & New c.g. amended tail blades
13.New vertical/horizontal stabilizers
14.New wear-resistance ball links
15.Improvements for some parts and bearing precision

Above new parts all apply to TREX SE except No.2 New main rotor head assembly(4mm feathering shaft+ thrust bearing)

Specification:

●Length:660mm
●Height:230mm
●Main Blade Length:325mm
●Main Rotor Diameter:700mm
●Tail Rotor Diameter:150mm
●Motor Pinion Gear:12T/13T
●Main Drive Gear:150T
●Autorotation Tail Drive Gear:106T
●Tail Drive Gear:25T
●Drive Gear Ratio:1:12.5:4.24/1:11.5:4.24
●Weight(w/omain blade):450g
●Flying Weight:Approx.730~760g
●Color carton:42x20.5x11cm
●Outer carton:44x43x35cm ,6sets/ctn

Package included:

1 x T-REX 450SE V2 Kits Set
1 x 325 3K Carbon Rotor Blades Set
1 x Aluminum Case
1 x RCE-BL35X 35A Brushless ESC(Govener Mode)
1 x 430XL Brushless motor(3700KV)
1 x 3S1P 11.1V 2100mAh/20C

Items to be used to make it Ready to Fly:

1 x Transmitter:6 channel or more For Helicopter System
1 x Receiver:6 channel or more
1 x Gyro:1pc
3 x Servo:9g

''Mirage 2000'' Brushless ARF Jet (without battery, transmitter dan receiver)

2008-08-18T21:07:00.001-07:00

Deskripsi lengkap:
25'' wingspan, 38-1/4'' long, 19 oz. flying weight. All molded bead foam construction, pre-painted with electronics pre-installed.Three pre-wired 9-gram servos control the elevons and the steerable nose wheel, which is pre-installed. Assembly is quick; the main wings are ''keyed'' to the fuselage for perfect fit and must be glued with epoxy. 30 amp speed control and ducted fan unit with powerful inrunner brushless motor is pre-installed and ready to run. The tricycle landing gear provides good ground handling; takeoffs from a smooth surface are quick. Mirage is a smooth performing aircraft, rolls are axial, inverted flight is easy and the flight speed is moderate. The delta wing will slow down well for landing and still remain very stable. Flight times are in excess of 10 minutes.

SPEEK New T-REX 600CF Kit +600L Brushless Motor+75G ESC+3A

2008-08-18T21:01:00.000-07:00

EC
Harga:
US$ 620.99
Rp 5.806.256,50
Deskripsi lengkap:
Features:
1.Electric Power System
2.Carbon Fiber Frame
3.Pre-Painted Fiberglass Canopy
4.Carbon Fiber Tail Blades
5.Triple-Bearing Block Main Shaft Support
6.Fully Driven Tail Auto Rotation System
7.Tail Rotor Drive Belt System
8.Push-Pull Control Linkage
9.Rear Tail Servo Mount
10.10mm Hollow Main Shaft, 8mm Spindle

Specification:
-Length:1200mm(47.25 in)
-Height:388/405mm(15.25 in/16 in)
-Main Blade Length:600mm
-Main Rotor Diameter:1350mm(53.15 in)
-Tail Rotor:240mm(9.45 in)
-Motor Drive Gear:10T(11T optional)
-Main Drive Gear:170T
-Autorotation Tail Drive Gear:180T
-Tail Drive Gear:40T
-Drive Gear Ratio:1:17.0:4.5/1:15.45:4.5
-Weight(w/o main blade):1340g
-Flying Weight:Approx 3000g(6.6 lbs)

Accessories:
-T-REX 600(CF) Kits SetX1 set(w/o main blade)
-Fiberglass CanopyX1
-StickerX1
-Standard Landing SkidX1
-3D Landing SkidX1
-RCM-BL75G 75A Brushless ESC(Govener Mode)X1
-600L Brushless motorX1
-REC-B3X External BECX1
-5.1V Step-Down Voltage RegulatorX1
-Li-Polymer 7.4V 1100mAh 9C For BECX1

TAKUT R/C HELICOPTER HANCUR??

2008-08-18T20:54:00.000-07:00

Harga:

US$ 165.00

Rp 1.542.750,00

Deskripsi lengkap:

English

Afraid your R/C helicopter being fragile? e-Hely s4 Series uses almost unbreakable structure and simple mechanical structure, which makes it less fragile compared to other R/C helicopters in the market. It is powered by 7.4v 1250mAh Lithium Polymer battery and it is ready to fly. This means Transmitter, receiver and servo have been included in the package. Hence, if you happen to be beginner, this model will make a perfect choice to practice before going to gas R/C Helicopter.

Features & Specification
i.Brand New 4 Channel e-Hely s4 Series R/C Helicopter
ii. Frequency: 40FM
iii. Possible Height of Fly: 15m
iv. Control Range: 100m
v. Flight time: 10-15mins
vi. Battery: 7.4v 1250mAh Lithium Polymer
vii. Motor: RK-370SD
viii. Main Blade Length: 510mm
ix. Overall Length: 585mm
x. Indoor play is recommended but outdoor can also be fulfilled with no wind condition.

Packaging
Box Size: 55 x 14x 23cm
Weight of box: 1.8kg
Volumetric Weight for shipping = (55 x 14 x23)/6000 = 3kg

Indonesia

Takut jika R/C helikopter Anda mudah pecah? e-Hely s4 Series menggunakan hampir struktur yang tidak mudah pecah dan struktur mekanisme yang sederhana, yang membuatnya lebih tidak mudah pecah dibandingkan R/C helikopter lainnya di pasar. Menggunakan baterai berkekuatan 7.4v 1250mAh Lithium Polymer dan telah siap untuk diterbangkan.Ini berarti Transmitter, receiver dan dinamo telah disertakan dalam paket. Maka, jika Anda adalah pemula, model ini akan membuat latihan yang praktis dan sempurna sebelum beralih ke gas R/C Helicopter.

Fitur dan Spesifikasi :
i.Merek Baru e-Hely s4 Series
ii. Frekuensi: 40FM
iii. Ukuran yang memungkinkan untuk diterbangkan: 15m
iv.Jarak Kontrol: 100m
v. Waktu Penerbangan: 10-15 menit
vi. Baterai: 7.4v 1250mAh Lithium Polymer
vii. Motor: RK-370SD
viii. Panjang Baling-baling utama: 510mm
ix. Keseluruhan Panjang: 585mm
x. Permainan di dalam ruangan direkomendasikan tetapi di luar ruangan dapat juga dipenuhi pada kondisi tanpa angin.

Pemaketan
Ukuran Kotak: 55 x 14x 23cm
Berat Kotak: 1.8kg
Berat Volumetric untuk pengapalan = (55 x 14 x23)/6000 = 3kg

Photo lainnya:

CARA MEMBUAT R/C Helicopter

2008-08-18T20:43:00.000-07:00

Introduction

Electric helicopters are hot. Motors are improving, batteries are getting better all the time and kit manufacturers have responded with some really good helicopter kits designed for electric power.

The emphasis here is on getting started in electric helis. This doesn't cover everything you need to know, but hopefully explains some concepts and jargon to make radio-controlled helicopters less of a mystery. If you already fly fixed wing, you can experience the exhilaration of learning to fly again. But you may need to allow a few months to get everything together.

I still have a lot to learn about helicopters. What I have learned so far is still fresh in my mind. I have not tried a small indoor helicopter yet, so my knowledge is limited in this area.
So far, my experience is limited to the following machines:

Kalt Whisper - my first heli and the first commercially available electric helicopter that flew well. I learned to hover with this helicopter.

Hirobo Shuttle - this is the helicopter I learned to fly around on. It is a "30 Size" glow helicopter converted to electric. The Brushless power system used in this helicopter gives it enough power to fly with authority.

Logo 20 - this is a very good electric helicopter roughly equivalent to a "45 Size" glow heli. It is very stable and capable of full aerobatics. With 24 cells it performs very similar to an aerobatic glow-powered heli

Electric helis have improved a lot over the past few years. The larger ones now fly very similar to their glow counterparts and indoor helis that fly well are available. As a testament to how well the new breed of electric helis fly, some accomplished glow heli pilots have added electric helis to their fleet. That is not to say they are replacing glow helis in competition yet, but they are certainly capable of impressive aerobatics and their relatively quiet turbine sound and smooth flight characteristics make them pleasant to fly.

A Few Heli Basics

Unlike fixed wing aircraft, helicopters employ a rotary wing. The wing rotates at a nearly fixed speed moving throughthe air constantly to give the heli the ability to hover. The characteristics of the rotary wing can be changed somewhat by swapping main rotor blades.

Helicopters store a lot of kinetic energy when the rotor is up to speed. Just tipping a helicopter over with the rotor atfull speed can cause quite a bit of damage.

To avoid unwanted reactions that would tend to rotate the helicopter, it is very desirable to maintain a constant headspeed at all times. This is not possible with fixed pitch helicopters as they require speed changes to increase and decrease lift.

In most helicopters, the tail rotor is a variable pitch propeller driven by a shaft or belt from the main motor. This isbetter than a variable speed prop because it is capable of faster thrust changes. The tail rotor has two key functions.
Firstly, it allows the yaw (direction of the nose or tail) of the helicopter to be controlled, particularly in a hover.
Secondly, it counteracts the reaction torque resulting from drag in the main rotor blades. In a hover, the tail rotorblades will have a small pitch to counteract this torque. This also causes the helicopter to have a slight tilt in a hover to counteract the sideward thrust of the tail rotor. Cool.

What is Revolution Mixing? Revolution mixing increases the pitch of the tail rotor blades as the pitch of the main rotorblades increases or decreases from 0 degrees. This is necessary because the drag in the main rotor blades increases as their pitch moves farther from 0 degrees. Revolution mixing should never be used with heading hold gyros because they are absolute and control yaw (the direction the nose is pointing in the horizontal plane) on their own.

What is cyclic pitch and what is collective pitch?
All helicopters have cyclic pitch control, which is the ability tovary the pitch of the main rotor blades as they revolve. This gives the helicopter the ability to tilt, and therefore the ability to direct thrust to move in any direction. The extra mechanical linkages in the rotor head facilitate mechanical mixing (usually Bell-Hiller mixing) for added stability in flight. Collective pitch, as the name suggests, tilts all the main rotor blades in the same direction at the same time, giving the helicopter the ability to ascend and descend in a very responsive manner without changing the rotor head speed. This is a very desirable feature.

Helicopters fly quite differently with different head speeds. When the main rotor is rotating relatively slowly, more pitchis required to lift off the ground and the helicopter becomes sluggish with poor control of the tail. At high head speeds, the helicopter transforms into a spritely beast that is more sensitive to control inputs at the cost of somewhat reduced flight time.

What is an "Auto" and why is it important?
"Auto" is short for autorotation. Autorotation is basicly the spinning upof the main rotor blades using only the helicopter's kinetic energy (speed) and potential energy (height). An auto is used to fly the helicopter down to the ground without power. Assuming the helicopter is upright, this is done by giving the main rotor blades a negative pitch (say -4 degrees or so) so that they act as a windmill to maintain sufficient rotating speed to control the helicopter as it descends. Knowing how to auto can save a helicopter in the event of a motor failure. An auto is not possible with a fixed pitch helicopter.

How tight should the bolts be securing the main rotor blades?
This is a question I originally had difficulty findinga good answer for. It appears it is not extremely critical, but it is beneficial to have them tight enough to avoid unwanted pivoting of the blades when spinning the rotor up at startup and for autorotations.

What is a pitch curve?
Helicopter radios usually have 5 set points on the left stick for setting a pitch curve. Thepitch of the main rotor blades at various positions can be set to control the vertical ascent/descent rates.

What is a throttle curve?
The throttle curve works hand-in-hand with the pitch curve. The speed of internalcombustion (glow) engines varies drastically as the load changes. This makes the use of a throttle curve (or a speed governor) mandatory in glow powered helicopters. Many throttles for electric helis have speed governors built in. To some extent, it is possible to get away without a throttle curve in electric helis that don't already have a built-in speed governor. This is because electric motors do not spin up above their specific speed when unloaded and they increase power output much more rapidly as the torque load increases. In helis, the load on the motor increases a lot as the main rotor pitch moves farther from 0 degrees during flight. It also increases when cyclic pitch is increased or as the tail rotor pitch increases but this is often ignored. If a speed governor is used, a flat throttle curve or throttle control via another variable radio channel is required.

What are Normal, Idle Up 1 and Idle Up 2 modes?
There is a switch on helicopter radios that allows one of several preset pitch and throttle curves to be selected. Normal mode is set up to allow the motor to stop at minimum throttle stick throw and uses gentle pitch changes around hover for smoother control. Negative main rotor pitch is usually
limited to a few degrees. Idle Up modes are intended for maintaining power to the main rotor at all times - even with negative main rotor pitch. This gives the helicopter the ability to hover inverted and is used for sport and "3D" aerobatics.

What is Throttle Hold?
Throttle Hold shuts off the motor while maintaining control of all other helicopter functions. It is used mainly for practicing autorotation landings, but can also be used as a safety switch for electric helis to make sure the motor remains stopped prior to, or after a flight. In the event of tail rotor or gyro failure, Throttle Hold can save a helicopter that would otherwise spin hopelessly out of control with a safe autorotation landing.

Because it is constantly spinning, the main rotor of a heli is not as visible in flight as the wing of an airplane. Also, in a standard "pod and boom" helicopter configuration, the fuselage cross section is small. These combine to make it a bit more difficult to pick up the orientation of a helicopter in the air. This can be compensated somewhat by fitting a scale fuselage or by buying a larger helicopter. :-)

Unlike the tail of an airplane, the tail of a heli can easily rotate - mostly when the aircraft is stationary or moving slowly.Needless to say, this can cause severe orientation and control problems for the beginning pilot! Today, gyros are universally used to stabilize tail (yaw) of the helicopter. A good gyro and tail rotor pitch servo combination can transform a slow or squirrelly tail into one that is rock solid and responsive.

There are two types of gyro - rate and heading hold (HH). A rate gyro applies a corrective control input based on therate at which the helicopter is rotating in the yaw axis. A heading hold gyro is absolute and tries to maintain the heading or rotation speed input by the pilot. Heading hold gyros can also operate in rate mode.

Gyros are often sold paired with a servo because the characteristics of the servo has a great impact on the ability ofthe gyro to control the tail. The Futaba GY401 solid state gyro is sold with the S9253 digital servo for example and is an excellent combo. All good gyros sold today are of the solid state variety.

Fixed pitch helicopters have cyclic pitch only. The average pitch of the blades through one revolution is fixed suchthat ascent and descent in a hover is controlled only by changes in rotor speed.

Collective pitch helicopters add the ability to independently control the pitch of the main rotor blades. This makes thehelicopter much more responsive to vertical control inputs and makes autorotation possible provided the helcopter is equipped with an autorotation clutch. An auto clutch is a one-way bearing that allows the main rotor to freely rotate when the motor has slowed or stopped.

What's all this about 120-degree CCPM?
CCPM stands for Cyclic Collective Pitch Mixing. 120-degree CCPM is a variant characterized by minimal mechanical complexity and servo-to-swashplate connections that are 120 degrees apart. The benefits and drawbacks to this approach are often debated at length on discussion boards, but the main impact of 120-degree CCPM is the need for a suitable program in your helicopter radio to handle it. Basicly, the simpler mechanics of 120 degree CCPM requires a more sophisticated program in the radio. Many helicopters can be configured for several different CCPM modes so if you don't have all the latest radio equipment you are not necessarily out of luck.

Helicopters, particularly larger ones, require strong, reliable servos. These are often coreless or even digital. Toincrease the gyro feedback gain and better stabilize the yaw of the helicopter, a good tail rotor servo is very fast and employs digital technology.

There is no substitute for a good gyro/tail servo combination. This can make tremendous changes in the yaw stabilityand response of the helicopter.

It is extremely important that the linkages in helicopters operate smoothly and freely but not loosely. Stiff linkages willmake the helicopter handle poorly and cause premature failure of the tail servo. Free linkages are not automatic - many helicopters kits require extra effort during assembly to ensure smooth operation. In this regard, do not assume that just following the instructions will result in a good flying heli. The JR Ball Link sizing tool or similar is almost mandatory for assembly of most helicopters.

A proper heli radio (or at least a radio modified to emulate a heli radio) is strongly recommended. Radios for helishave switches in different places than aircraft radios and have a smooth (unratcheted) throttle stick action. It is best for student and instructor to use the standard heli configuration. If you are learning to fly and you hand your non- standard radio to your instructor, the result may not be pretty.

Base loaded ("Deans") antennas can be useful in a heli. It is nice not to have a long antenna wire strung outside theheli. In some instances, it is also easier to keep a short base-loaded antenna away from the electro-magnetic interference generated by the electric power system.

What rotor blades should I use?
Depending on the type of helicopter, there may be many choices of helicopter blades. Semi-symmetrical blades provide more lift but are not suitable for so-called 3D aerobatics. These are
commonly used in smaller helis. Full symmetrical blades are most often used. Wood blades are fine for general
flying around. Glass and carbon fibre blades should be stiffer and provide crisper performance. What about upgrade components? Many heli upgrades seem to be more "show" than "go" and do little to improvethe flight characteristics of the heli. There are a few exceptions. For example, the Carbon Fibre Vertical Stabilizer upgrade is almost mandatory to protect the Logo 20 tail rotor in less-than-perfect landings.

Generally speaking, the more ball bearings a heli has the better. Ball bearings (also called anti-friction bearings) haveless friction and maintain clearance better over time than sleeve bearings. In good helis, double ball bearings are often used in linkages to further improve precision. The races of ball bearings will brinell (get small imperfections that result in increased roughness and noise) if static loads are too high. Shock loads and improper installation (for example, pushing hard on the outer race of a bearing to force it onto a tight fitting shaft) can cause this brinelling of the races and reduce bearing life. Reasonable precautions should also be taken to keep dirt and grit out of the races of ball bearings.

Tools for helis

Some different tools are required for helis. Some recommended tools include:

Good small slotted and cross-recess screwdrivers
Nutdrivers
Small (Ignition) wrenches
Ball sizing tool
Ball link removal/installation tool
Balancer - i.e. High Point
Blade pitch measurement device
Loc-tite

Characteristics Unique to Electric Helicopters
Unlike glow powered helis but like electric airplanes, electric helis are self starting. Depending on the smoothness ofthe throttle, the main rotor may start up fairly quickly.

Most electric heli throttles feature a built-in speed governor mode. Glow heli pilots have to buy additional hardware forgovernor control. It is also possible to control the throttle without using the normal throttle channel of the radio. If an extra channel can be controlled by a variable knob or slider this can be used to control the speed setting for the governor. This is preferred approach for some heli pilots.

Electric helis are very stable in a hover thanks to the stable power output of the electric power system.

Electric helis do not require a clutch. Clutches are not 100% reliable so not having a clutch is a good thing.

Like electric airplanes, electric helis have noticeably reduced reserve power when the batteries are near exhaustion.
This is even more noticeable in helis than in fixed-wing aircraft.

Because of the high currents present, the potential for electric disturbances is fairly high in an electric heli.Precautions such as careful routing of signal wires away from power wires should be taken. Sometimes, winding signal wires though ferrite rings can help filter out unwanted noise and reduce glitches.

Just like with electric airplanes, there is more variability in the motor system through changes to the number of cellsand to the final gear ratio. Also just like in airplanes, this affords more opportunity for optimising the motor system after installation. At first, it also provides more opportunity to get it wrong, but most manufacturers web sites now provide good guidelines for power systems. It can be a good idea to buy pinions one size larger and smaller than the one that "should" work for tweaking purposes.

What about BEC's in helis? A typical electric helicopter has four servos. All these servos can consume quite a bit of current, especially the new digital servos. It is extremely important that the Battery Eliminator Circuit (BEC) have sufficient capacity to supply sufficient current for all servos operating simultaneously under flight loads. A Battery Eliminator Circuit is often built into the speed controls used in smaller helicopters to avoid the weight of receiver batteries. Recently, a separate, high voltage "Ultimate BEC" has become commercially available from Kool Flight Systems and is being used quite successfully in the larger electric helicopters. Otherwise, standard receiver packs
are used. Receiver batteries should be sized to last a reasonable number of flights.

What about motor batteries?
Some exciting advancements are being made in batteries. Lithium chemistries are just starting to emerge and have been used with amazing results. In most heli applications, they are probably not
ready for "prime time" so for the average user, NiCds remain the most reliable and cost effective solution. NiCds charge quickly and deliver high currents with ease.

Brushless motors have been a boon to electric helicopters. Helicopters require constant power - this is hard on theless-efficient brushed motors. Brushed motors in helicopters run hot and tend to wear brushes quickly. Brushless motors remain virtually maintenance free even in helicopters.

Benefits of a Simulator

In my view, it is difficult to overstate the benefits of a simulator. If you are new to R/C flight, a simulator is a great wayto start. If you are already a fixed wing pilot, I would say the similator is just as important when learning to fly helis.
When in forward flight, helis fly somewhat similar to fixed wing aircraft. But helis require new skills - hovering,transition to and from forward flight and more dexterity of the left thumb for control of collective and yaw. Since every (successful) heli flight begins and ends in a hover, these new skills are very important and required immediately. This makes the simulator a very valuable tool for the beginning heli pilot unless of course you have several backup helis at your disposal. :-)

Best Starter Heli

Question: What is the Best Heli to Start With?
Answer: The one in the flight simulator.

When it comes to the real thing, I feel strongly it is not necessary to start with glow helis as some would suggest. Inmy case, it would have meant getting a bunch of glow equipment I know I'll never use again just to learn to fly helis.
Dumb. Using a simulator further minimizes the argument for learning on one type or another.

If I had to choose, I would say the best choice for learning to fly helis of any kind is a Lite Machines Corona. It is hard to go too far wrong with the Corona as a first heli. It is relatively inexpensive and very durable. It runs very reliably with electric power. Its only major drawback is it is a fixed collective pitch heli.

In reality, there is no such thing as one "best" heli to learn on. Those who learn quickly, build more precise and aremore patient and careful can start with a more advanced heli than the one recommended above. Those who already fly glow powered helis will choose an electric heli that suits their skill level.

The Mikado Logo 10 and 20 are probably the best mainstream electric helis available. These helis are well designed,fly well and are made with quality components. The micro helis such as the Piccolo and Hornet are somewhat more difficult to make fly well but are fun machines for indoor and calmer weather. The Minicopter Joker CX is a sophisticated (and expensive) large "60 size" machine that is generally considered the best large electric heli currently available. Other popular electric helis of note include the Ikarus Eco series, the Kyosho Concept EP and the JR Voyager E.

What about converting a glow heli? This works too and can result in a good flying, robust and relatively inexpensive heli. Recently, the 50 Size Raptor has become a popular conversion candidate and there is even a conversion kit available from ElectraFlight. However, all things being equal, conversions are a bit heavier with shorter flight times and/or less performance than a machine designed from the ground up for electric power. It will also require the necessary skill and labour to convert the power source if you are starting from scratch. If done right, the performance difference isn't that great so there is no reason not to try. It is rewarding and sometimes less costly to convert a glow heli so if you have the tools and access to a suitable candidate by all means go for it!

Final Thoughts

"OK. I've decided to take the plunge and get an electric heli, what else should I know?"

How much will it cost? Well, if you have to ask......

It is certainly true that an electric helicopter of any size is not an inexpensive thing. Again, the LMH Corona isprobably the lowest cost heli available. A simulator can also save hundreds in repair costs. Somehow I have managed to conveniently forget how much it has cost to get my Logo 20 in the air. But what a nice heli. :-)

Can I save money by using a brushed motor?
A qualified yes. Some brushed motors work quite well, especially in smaller helis. Even if the motor works well, however, you can expect a lot more maintenance to keep the heli in the air. In many heli applications, the joy of initial cost savings for a brushed motor will be quickly overcome by the frustration of poor reliability.

Where do I turn for help?
Find someone with knowledge of electric helis. Glow pilots can help you fly, but may be little help if your electric set-up needs adjustments or has problems. Ray's Helicopter Manual is a good resource for model helicopters in general. Get advice and support online from one or more of the online discussion groups. The on line glow heli groups can also be very helpful to the beginning electric heli pilot. The Ezone, RunRyder, and RC Universe are a few I would recommend.

What setup to use?
Should I get a tame setup for more flight time or a more aggressive setup that will grow with me as my flyingskill improves? To a large extent, only you can answer this question. I wouldn't lose too much sleep over this because the characteristics of the power system can be changed somewhat after purchase. A tame setup generally uses a motor with a lower speed constant and achieves a lower head speed. By varying the number of cells and the drive ratio to the main rotor, the characteristics can be varied quite a bit with a given motor. All I can suggest is try to be realistic about your goals and abilities.

Do I need to use a speed control made for helis?
This isn't absolutely mandatory, but as the size increases it becomes more important. Throttles made for use in helis have a "heli" mode that makes important changes to the operation of the throttle. For example, it engages a governor mode that is ideal for maintaining rotor head speed. It often also makes changes to other operating parameters such as thermal and voltage cutoff settings that are more suited to helis. No throttles for brushed motors that I am aware of have a governor mode. Another drawback of brushed controllers is they often have a poor transition to full throttle (jump abruptly from say 90% to 100%) that can negate any possibility of using a proper throttle curve.

How hard is it really to learn to fly a heli?
It isn't as difficult as it is different. The first hurdle is the hover. Buy, beg or borrow a simulator and use it! First learn to hover with the tail towards you. Then learn to hover viewing the heli from the left and right sides and then nose in. I know this simulator advice is being repeated ad nauseum here but
there is no substitute for stick time on a sim. Practice autorotation landings soon after you are comfortable flying around on the sim. This could save your heli later.

Finally, start acquiring the components early. Depending on the model and the motor/speed controller/gyro/servoschosen, you may have to allow as much as several months for all the materials to come together.

TWO-WAY RADIO AND TRUNKING

2008-07-03T00:12:00.000-07:00

two-way radio and radio trunking systems are the oldest forms of mobile communications. Police departments, public safety officials and private enterprise continue to use FCC licensed two-way radio as a cost effective, very secure and ultra reliable means to communicate with their work force. Mobile devices are available as fixed in vehicle units or hand held portables. Major manufactures include Motorola, Kenwood, EFJohnson, Midland, Tait, Icom, and Vertex/Standard.

What you need to know:

CES Wireless products are compatible with many of the popular two-way radio units.
CES Wireless products are certified by Motorola and available from Motorola Resellers.
CES Wireless products are compatible with radio trunking networks
With two-way radio and radio trunking, you get both voice and data communications
Hand held portables cannot be used because they are 'portable" and usually removed from a vehicle.
There are NO monthly fees associated with the transfer of data "over the air" on conventional two-way radio systems. A small per vehicle fee is normally charged for airtime over "trunked" radio systems.
Two way radio and radio trunking systems do not allow for the same throughput of data traffic as a cellular system, but adequate for most applications. Please consult your CES Wireless representative or Reseller who will assist you in choosing which option is best for you.
CES Wireless products 'plug' into the radio and share the same channel with voice communications. If you have more than one channel available, channel steering can be enabled. On trunking systems, data is sent on a dedicated data group to minimize congestion on the voice channel.

TK-3202LU16P, Kenwood Protalk twoway

2008-07-03T00:09:00.000-07:00

4 watt radio!


Click to enlarge image(s)

Kenwood's compact TK-3202LU16P transceiver, based on a proven design, represents ergonomic excellence. Pick one up and you will immediately appreciate how easy it is to use. Powerful too: equipped with scan, and built in VOX, it offers reliable performance in all conditions, thanks to MIL STD 810 & IP54/55 weatherproofing. Indoors or out, rain or shine, the smart new TK-3202LU16P is a star performer

KENWOOD PRO TALK RADIO

2008-07-03T00:07:00.000-07:00

Kenwood ProTalk Radio

Kenwood ProTalk two way radio is an economic way to aid in business management. Kenwood Pro Talk Radio and Kenwood Pro Talk Accessory items are affordable and durable. ProTalk radios are all backed by Kenwoods 2 year warranty. ROI studies show that a ProTalk two way radio will pay for itself in less than 3 months!

Look for our latest model of Kenwood ProTalk two way radio TK-3202LU16P, The all new 4 watt, Uhf, 16 channel ProTalk two way radio. Check all two way radio details for quantity discounts! It's like getting a free two way radio!

RADIO TRUNKING SISTEM

2008-07-03T00:05:00.000-07:00

Radio Trunking Systems :

Aryacom offers world's most widely accepted, proven and reliable Motorola Radio Trunking Systems and subscriber terminals for effective and efficient communication between different user groups within an organization. Aryacom provides both analog and digital trunking systems, conforming to various international standards

The range of radio trunking systems

Tetra
Astro Network
Astro 25 Network
Harmony

Terrestrial TV Mobile Phone (BI-U90)

2008-07-03T00:04:00.000-07:00

Features:

* GSM 900/1800MHz

* Terrestrial Analog TV tuner

* Built-in FM radio (powerful)

* Bluetooth

* 3.0 inch QVGA touch display

* MP3 Player & MP4 player

* HIFI speakers

* Can serve as webcam

* U-disk facility

* Great games

* T-Flash memory card slot

* 1.3 megpixels camera

* Video Recorder & Audio Recorder

* Language: English, Arabic, French and Chinese

* 256M memory card as gift

* 1500mAh battery

* Image Viewer, Calendar, To Do List, Alarm, Calculator, World Clock and File Manager

Recon R/C Helikopter: SPY LOW COST

2008-07-03T00:01:00.000-07:00

Radio Controlled (RC) helicopters are model aircraft which are distinct from RC airplanes because of the differences in construction, aerodynamics, and flight training. Several basic designs of RC helicopters exist, some more maneuverable than others (such as helicopters with collective pitch). The more maneuverable designs are often harder to fly, but benefit from greater aerobatic capabilities.

Flight controls allow pilots to control the collective and throttle (usually linked together), the cyclic controls (pitch and roll), and the tail rotor (yaw). Controlling these in unison enables the helicopter to perform most of the maneuvers an aeroplane can do, and many that aeroplanes cannot, such as hovering and backwards flight; in this manner, they are quite similar in operation to full-sized helicopters.

The various helicopter controls are effected by means of small servo motors. A piezoelectric gyroscope is typically used on the tail rotor (yaw) control to counter wind- and torque-reaction-induced tail movement. This "gyro" does not apply a mechanical force, but rather, electronically adjusts the control signal to the tail rotor servo.

The engines used are typically methanol-powered two-stroke motors, but gasoline, jet turbine and increasingly electric brushless motors combined with a high-performance lithium polymer battery are also used. from wikipedia

Kalau anda suka dengan remote control jenis pesawat terbang, mungkin Radio Control Recon Camera Helicopter merupakan pilihan yang patut dipertimbangkan.

Bukan saja karena kemampuan terbang dan stabilitas yang diberikan tetapi dapat melakukan pemantauan secara langsung dari udara melalui kamera yang terletak di depan helikopter tersebut.

Gambar yang diambil, langsung ditransmisikan ke layar 2 inches yang ada di remote control.

Dengan harga sekitar Rp. 2.000.000, kami rasa cukup murah sebagai alat atau gadget dalam melakukan pemantauan/ intip-mengintip.

PRICE RC AEROMODELING INDONESIA

2008-07-02T23:58:00.000-07:00

Messerschmitt ME-109 with Retractable Landing Gear Rp1.650.000
Esky Honey Bee King2 + Softcase Heli Rp2.100.000	Black Hawk / Zoom 450IC KIT (Standard Version) Rp2.700.000	P-51D Mustang Obsession with Retractable Landing Gear Rp1.700.000
P-39 Airacobra Rp1.500.000	Magic Pylon Rp950.000	Mig-3 with Retractable Landing Gear Rp1.650.00