RCU Forums - View Single Post - Engine for heavy FEJ Rafale..? Need help..

10-22-2010 | 06:55 AM

#8

napaa01

Junior Member

Joined: Nov 2009

Posts: 4

Likes: 0

Received 0 Likes on 0 Posts

From: Grenchen, SWITZERLAND

RE: Engine for heavy FEJ Rafale..? Need help..

Hi
I am flying the Flyeagle Rafale with a P-60SE. I would not say that this plane is overpowered with this kind of Turbine an i did a lot of modifications to be able to start her in less than 55meter runway.

What i did is following:

-Remove all Gear Doors due of the weight
-Remove the original main OLEO`s and replaced them with shorten ones.This allows a angle of attack approx.to 4.5 degrees with a full tank
-Remove Rudder Servo, it is not neccerecy in the air
-Remove the original thrust pipe and replace with a custom made from JETTECH Switzerland to a single pipe (Gain of approx. 1kg thrust and 150 gramm of weigt in the back)
-Replace the maingears as much as possible torward to the COG. the nose is liftig now much better
-Replace the main gears with a bigger diameter and harder rubber
-Replace the original Tank as much as possible to the COG
-Set COG to 135mm from the leading edge
-Remove all unnecceary weight but beware the savety of the model
-No Hoppertank! use a bubblefree tanksystem like Platypus...depending on your own prefer.
dont forget to modify the nose gear that you ensure the locating pin is alway finding the center otherwise you will have a big suprise when you first touch the ground !

It is a pity for the geardoors they are well made but to heavy and another big issue are thy valves...replace them with another brand. FEJ valves are not reliable.
here a video of the landing:

http://www.youtube.com/watch?v=lVmjng61A0c

Of course some modifications are not really neccesery if you have a long runway...but here in Switzerland we are quite limited with space and long runways....this was the reason for all this mods because we want to FLY and not a expensive "RC Car" model to drive on the ground :-)

Cheers an good luck

Reply Like