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HomeAircraftHelicopterGasser Model RC HelicoptersOther › CG on 700N Convert
06-05-2012 05:57 PM  6 years agoPost 1
jbdww

rrElite Veteran

Round Rock, Texas

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Hello,
This is my first time with gassers. I just put together a 700N, and the heli is very nose heavy even with fuel in it. When I pick the heli up by the blade grips, I get about 4 deg forward tilt.

Is this normal for a gasser? Is there ways to get the CG right?

Specs:
Trex 700N Flybarless
Century Convert kit.
Zenoah G231puh
Century Torpedo V4 pipe
Red UFO air filter
Dual fuel tank setup for long flights
Stator Gator
3s 1000 mAh Lipo for flight power.
WesterRobotics BEC
Total-G

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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06-05-2012 06:30 PM  6 years agoPost 2
RM3

rrElite Veteran

Killeen, Texas - USA

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the general idea even with gassers is to fill the tank half way with fuel and then adjust the CG at that point...FBL helis that have thier CG way of have weird elevator reactions...the CG with a fuel powered heli will change during flight as fuel is burnt as you may already know so thats why most guys will check the CG with a half tank to get it set. just make sure to check it with everything mounted.

showing a preference will only get you into trouble, 90% of everything is crap...

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06-05-2012 07:06 PM  6 years agoPost 3
jbdww

rrElite Veteran

Round Rock, Texas

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Maybe I should try moving the rudder servo to the tail.

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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06-05-2012 07:13 PM  6 years agoPost 4
pgkevet

rrKey Veteran

Wales

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...you could try adding weight to the tail to give yourself an idea of how much you need to change.. siplest way of really changing weight is to relocate the flight lipo if on the nose.
Is that really 100ma? It might well fit above the front tail box for a significant change.

pgk

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