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Helibug Thunderbird R90

Helibug HB7-PUH Version 2 Conversion Kit for Trex 700

Designed for Zenoah PUH Series of Engines

(Zenoah G231-PUH & G26-PUH Heli Engines)

This kit is designed to convert Trex-700 Nitro into Gasoline powered Helicopter using Zenoah G260-PUH engines

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

Designed for Zenoah PUH Series Engines (G231-PUH OR G26-PUH)

Excellent Balance and Performance

Same size frame as Trex-700

No Vibrations

Delrin CNC Fan with 14 Fins, 1" High

2.3mm thick G10/FR4 Highest quality material used for side frames and Fan shroud mount

6.5mm thick G10/FR4 Base Plate

Relocated Throttle Servo

Single Piece Pinion Gear design

20T, 17T and 16T Mod-1 Pinion for Excellent Mesh with the MicroHeli Main Gear

5.75 and 6.76 Gear Ratio

115T Module-1 Main Gear Used from Align

This kit uses all stock parts from Align - There is nothing you need with this kit

Adjustable pinion mount and base plate mount holes to accommodate 16T, 17T or 20T pinion

Kit Includes :

1.  Main Frames

2.  Base Plate

3.  Clutch mount

4.  Throttle Plate

5.  4x M4 10mm Screws for Pull start

6.  4x M4 12mm Set Screws for Delrin Fan on Clutch mount

7.  2x spacers for Fan Shroud

8.  4x Screws for Fan Shroud

9.  4x G10 Fan Shroud Mount Links

10.  Fan Shroud

11. 17T or 20T Pinion

12. Align or Microheli 115T Main Gear

13. Delrin Cooling Fan

14. Two Flange Bearings for Main Frames

 

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: $389.99

 

With 17T Pinion

Price: $389.99

 

NEW:  With 16T Pinion

Price: $389.99

 

Links to Engines @ Horizonhobby.com:

Zenoah G230 http://www.horizonhobby.com/Products/Default.aspx?ProdID=ZENE231H

Zenoah G26 http://www.horizonhobby.com/Products/Default.aspx?ProdID=ZENE26H

 

Conversion Steps

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

(Click on the thumbnails below to view in fullsize)

 

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.