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Helibug Thunderbird R90

HB7-RC Limited Edition

Designed for Zenoah RC Engines

(Zenoah G230RC, G240RC, G260RC, G270RC, G290RC or CY Zenoah Clone Engines)

(REV 1.1 Frames with additional bearing block location to make it compatible with CORE-7)

This kit is designed to convert Trex-700 Nitro into Gasoline powered Helicopter using Zenoah G230 RC series engines - along with very few additional parts from Align, your Trex will be flying with a Gasoline Engine in no time.

Here are some of the key points which makes this conversion kit different from others:

Designed for Zenoah RC Series Engines (G230RC to G290RC or CY Zenoah Clone Engines)

Excellent Balance and Performance

No Vibrations

2.3mm thick G10/FR4 Highest quality material used

3.2mm thick G10/FR4 Base Plate

6.5mm thick G10/FR4 Engine Mount Plate

Relocated Throttle Servo

Single Piece Pinion Gear design

5.75, 6.76 and 7.18 Available Gear Ratios

This kit uses all stock parts from Align

 

You will need one extra pack of HN7067 (Bearing), HN7084 (Front Frame Mount)

 from Align Trex 700 Replacement Parts and Align/MicroHeli 115T Main Gear

 

 

 

Choosing the right Pinion (Gear ratio) for your Flying Style

 

This is the most common question we receive from Buyers...."Which Pinion should I buy?"

Here is a brief selection criteria you should use when buying this kit.

 

16T Pinion (7.18 Gear Ratio)

16T Pinion is best for sports/mild 3D flying, so if you are a sports/mild 3D flying, it is highly recommended to use this gear ratio.

 

17T Pinion (6.76 Gear Ratio)

17T pinion is best for sports and a good level of 3D flying. so, if you are a 3D pilot/sports flyer, this gear ratio is best for you.

 

20T Pinion (5.75 Gear Ratio)

20T is only made for Extreme 3D Pilots. Although you can fly sports with 20T pinion but, its not recommended to use this gear ratio for sports flying.

 

Please note, if you plan to use a Modified RC Engine, than its highly recommended to use 16T Pinion (7.18 Gear Ratio)

My personal recommendation is to use 16T Pinion for all flying styles !

 

 


With 20T Pinion

Price: $299.99


With 17T Pinion

Price: $299.99


With 16T Pinion

Price: $299.99


 

HB7-RC Complete Conversion Kit

This package comes complete with Align CNC 115T Main Drive Gear, Trex 700 Front Frame Mount and Bearings


With 20T Pinion

Price: $329.99

 

With 17T Pinion

Price: $329.99

 

NEW:  With 16T Pinion

Price: $329.99


Conversion Steps

There is nothing special in converting Trex700 with this conversion kit. The only addition from the manual is mounting of Zenoah Engine. Below is the step-by-step pictures as installation instructions


WARNING: The radio controlled model helicopter built from this conversion kit is not a toy and is not meant for children. It is a flying machine capable of causing property damage and serious bodily harm to both the operator/assembler and/or spectator if not built and operated correctly and responsibly. Rotating components, especially the main rotor blades, are an ever-present danger. Model helicopters operate differently than model cars and airplanes. Helicopters by their nature are not positively stable, meaning that even if properly assembled and adjusted, helicopters will not recover from an unwanted flight attitude, nor will they hold any particular orientation without constant control inputs from the pilot.

IT IS YOUR EXCLUSIVE RESPONSIBILITY TO PROPERLY BUILD, MAINTAIN AND OPERATE HELICOPTER.

HELIBUG has spent considerable time making this product reliable and easy to build, but only the operator can insure that it is safe. Because the safe operation of this helicopter is beyond the control of the Manufacturer and distributor, the owner/operator assumes all risk of use.