In idle 1 she dips forward.

em3jefferson · 06-15-2012, 10:51 AM

W
hat's up gang? I have a trex 550e 3gx v2 with a dx7. While i'm hovering she's smooth and stable but when I switch to idle 1 she dips forward as though i gave forward elevator. I have to pull back elevator to hold her level. Now if I switch to idle 2 she goes back smooth and stable. It only does this in the idle 1 position.

Dave H. · 06-15-2012, 10:56 AM

Are the trims identical in each flight mode?

backburner1955 · 06-15-2012, 12:46 PM

Quote:

Originally Posted by Dave H.

Are the trims identical in each flight mode?

Exactly, all flight modes have independent trim settings.

flyinfool · 06-15-2012, 01:54 PM

Unplug your motor.
With the heli on the bench, switch flight modes, if the swash moves at all, you know it is a setup issue in your transmitter.
The swash should not move at all when switching between modes for most peoples setups.

WillJames · 06-15-2012, 04:47 PM

Quote:

Originally Posted by flyinfool

Unplug your motor.
With the heli on the bench, switch flight modes, if the swash moves at all, you know it is a setup issue in your transmitter.
The swash should not move at all when switching between modes for most peoples setups.

+1

If the swash does not move with the above test, is the headspeed changing when you go to I1? Is the CG right on the machine? You might need slightly different elevator trim with higher HS.

desertstalker · 06-16-2012, 05:46 AM

Quote:

Originally Posted by WillJames

+1

If the swash does not move with the above test, is the headspeed changing when you go to I1? Is the CG right on the machine? You might need slightly different elevator trim with higher HS.

The heli is FBL there should be no trim at all, the dip could be caused by vibration as a result of a higher headspeed though.

Trim is more likely though... it should be 0 (AFAIK not 100% sure on the 3GX) for everything.

WillJames · 06-16-2012, 06:21 AM

I don't know the 3gx either.

eagleridge · 06-16-2012, 08:04 AM

Eric, definately check elevator trim in Idle1.. Make sure its centered

em3jefferson · 06-16-2012, 04:13 PM

whats up eagleridge. not quite sure how to check trim in idle 1. can you give a little more detail.

06-15-2012, 10:51 AM	#1
em3jefferson Registered Users Join Date: Feb 2011 Location: jackson,ms	In idle 1 she dips forward. W hat's up gang? I have a trex 550e 3gx v2 with a dx7. While i'm hovering she's smooth and stable but when I switch to idle 1 she dips forward as though i gave forward elevator. I have to pull back elevator to hold her level. Now if I switch to idle 2 she goes back smooth and stable. It only does this in the idle 1 position.

06-15-2012, 01:54 PM	#4
flyinfool Registered Users My HF Map location Join Date: Apr 2005 Location: Cudahy, WI	Unplug your motor. With the heli on the bench, switch flight modes, if the swash moves at all, you know it is a setup issue in your transmitter. The swash should not move at all when switching between modes for most peoples setups. __________________ Jeff Borowski RAMS Club President www.ramsrcclub.com

06-16-2012, 06:21 AM	#7
WillJames HF Support My HF Map location Join Date: Mar 2004 Location: Western, NC	I don't know the 3gx either. __________________ William James To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. If you fly you are going to crash. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

06-16-2012, 08:04 AM	#8
eagleridge My HF Map location Join Date: Jan 2008 Location: Florence, Ms.	Eric, definately check elevator trim in Idle1.. Make sure its centered __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. *Kevin Williams* *AmainHobbies/ProTek Field Rep* Rush700: Scorpion 4035-500kv, Vbar Silverline, CC160HV

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06-15-2012, 10:56 AM	#2
Dave H. Registered Users Join Date: Mar 2010 Location: NW USA	Are the trims identical in each flight mode?

06-16-2012, 04:13 PM	#9
em3jefferson Registered Users Thread Starter Join Date: Feb 2011 Location: jackson,ms	whats up eagleridge. not quite sure how to check trim in idle 1. can you give a little more detail.