Mercury 800 - DFC

Trex 700-DFC (V2) Gasser


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 Helibug Mercury 800 DFC Gasser Conversion for Trex 700-DFC (V2) to Trex800-DFC Gasser

Helibug Mercury 800-DFC for Trex700-DFC (V2) - Forward Engine Mount

product image  Item Name: Helibug Mercury 800-DFC Gasser Conversion kit for Trex 700-DFC (Forward Engine Mount)
 Item Price: $324.99     Available on Order Only
 Item SKU:   HB8-DFC

* Forward Engine Mount *

Product Description Helibug Mercury 800-DFC Gasser Conversion for Trex700-DFC (V2) using Zenoah RC Series of Engines
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Helibug Mercury 800-DFC for Trex700-DFC (V2) - Backward Engine Mount

product image  Item Name: Helibug Mercury 800-DFC Gasser Conversion kit for Trex 700-DFC (Backward Engine Mount)
 Item Price: $324.99   - Available on Order Only
 Item SKU:   HB8R-DFC

* Backward Engine Mount w/ 16oz Fuel Tank *

Product Description Helibug Mercury 800-DFC Gasser Conversion for Trex700-DFC (V2) using Zenoah RC Series of Engines
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 Best Seller !!!

Helibug Mercury 800 - DFC Gasser Conversion Kit for Trex 700-DFC (V2)


Convert Trex700-DFC (V2) into Trex800-DFC Gasser


Designed to convert The All New Trex 700-DFC (V2) Nitro into a Trex 800-DFC Gasser Helicopter

Zenoah RC Series of Engine Based

Available in both, Forward and Backward Engine Mount

Uses 100% parts from Align Trex 700-DFC (V2)

( Align Part Number: RH70N01XW )

You will need Align Trex800 Longer Tailboom. Torque Tube and 800 blades for this Conversion Kit


Helibug, known to produce the most simplest and highest quality Gasser Conversion Kits in the world with excellent track record, proud to announce

our very new line of Gasser Conversion kits for the all new Align Trex700N-DFC (V2).
Almost 4 years ago, we launched our first Gasser Conversion kit for the Align Trex700N - The HB7-RC. We were also the first one to design a Gasser Conversion kit

 using Zenoah RC series of engines in a 3D capable helicopterand turned Align Trex700 Nitro into a 3D capable Gasser!

Now, introducing the very first conversion for the all new Trex700-DFC, Mercury 800-DFC !


Forward Engine Mount Kit (stock fuel tank)




Backward Engine Mount Kit. Uses 16oz Fuel Tank under nose inside the canopy




This kit is designed to convert Trex-700-DFC (V2) Nitro into Gasoline powered Helicopter using Zenoah RC series engines

100% parts used from Align Trex700-DFC (V2)

Simplified Design to get the best out of Trex700-DFC (V2)

Bolt On Kit

Adjustment free design

Uses stock Trex-700-DFC gear ratio (8:1)

Perfect Gear ratio for 800mm blades

Available in two different versions (Forward and Backward Engine Mount)

Open Design for much better air flow

Uses stock Engine Mount Hardware from Trex700-DFC (V2)

Highly serviceable Design - Simplest Build ever !

Third Bearing Block location under the main gear (Thanks to Align for leaving 10mm extra length on Stock Trex700N-DFC ! )

This whole model can be converted within 3 hours only!


Major differences between forward and Backward Engine mount Kits

Forward Engine Mount Backward Engine Mount
  Uses Stock Fuel Tank   Uses 16oz Fuel Tank (Lighter in comparision)
  Minor Canopy Cutting Required for Throttle Servo
  No Canopy Cutting Required At All
  upto 40 minutes flying time w/ Stock Fuel Tank   upto 25 minutes flying time (16oz Fuel Tank)


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


Note: Forward Engine Mount require very minor canopy cutting. Backward Engine mount does not require any cutting at all 


Align Trex700 Clutch bell with Blue Liner

The new clutch bell from Align with a 'blue' clutch bell liner is the best upgrade from Align. This clutch bell uses thicker clutch liner. It has a much better gap between the original Trex700 Nitro Clutch and the Clutch Bell.

I highly recommend using Align Trex700 Clutch with the NEW Align Trex700 Clutch bell

There is no need to upgrade to Lynx Gas Clutch as original the "Gap" with the older Align Clutch bell was unacceptable for gasser performance. Also, there is no need to fix any tolerances for the Trex700 clutch to fit into the bell as it is factory adjusted for the best performance.

100% compatibilty with the Trex700, flyers can benefit from not only Lynx Gas Clutch, but, also QuickUK standard and HD clutches along with the Lynx stock Trex700 Clutch.  More choices of clutches to choose from !

This applies to All Helibug Gas Connversion Kits which uses Original Trex700 Mechanics



Conversion Step Reference

There is nothing special in converting Trex700N-DFC (V2) 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

We have made two procedure pages as a reference for all upcoming Trex700-DFC (V2) conversion kits

for forward engine mount and backward engine mount



Procedure for  Forward  Engine  Mount Conversion:   Click here for Mercury 800-DFC Forward  Engine  Mount


Procedure for Backward Engine Mount Conversion:   Click here for Mercury 800-DFC Backward Engine Mount




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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