Backward Engine Mount

Conversion Steps






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Conversion Step Reference (Backward Engine Mount)


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


Install the clutch mount included in the kit


Install Clutch on Clutch Mount


Install Engine Mount Plates on the Engine


Install Engine on the Base Plate


Prepare Base Plate just like its done on stock Trex700


Keep these mounts loose on the skids


Stock Engine Mount Installation on the frame - Note: Must be install from Inside the frames


Thats how it should look from outer side

Note: Install it keeping the notch backward on the Engine mount


Screws from Inside


Optional Spacer Location (Use two spacers from stock Fan Shroud) and Throttle Servo Location


Optional third bearing block location under the main gear (Thanks to Align for keeping the main shaft longer)


Stock Screws used to mount the engine


Whole models sits on the Engine - Just like Plug & Play


Mount the engine with stock screws from bottom of the engine mount plate


Better View


Thats It - Almost done !

Fuel Tank goes under the nose


No Canopy Cutting Required At All




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.


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.

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