Hi,
I upgraded my APM 2.5 to the latest firmware 2.72. Before that I was using the 2.68 HIL firmware for simulation purposes.
Before the next test flight I wanted to test out every function but I noticed that when I change mode from manual to stabilize, the aileron which is mixed in with the RC5 Function, deflects. As a consequence of rudder mix, the rudder deflects aswell. This happens also when I go further to auto or RTL.
The other aileron that is the normal one isn't deflecting after a mode change. In stabilize mode it is still possible to move all control surfaces with my RC Transmitter.
Is there somebody who can help me?
Greets,
Martin
Replies
I'm using two different cables from my RX to AP. No Y cable because I wan't to have an aileron differentiation. This was working fine earlier. An hour ago after I wrote this thread I tried loading an old firmware and then the 2.72 again. It seemed to work so I went out for a test flight. Now back home the failure occours again and I don't know why.
I'm using a Spektrum AR9000 (9CH) with a satelite receiver. The airplane is a Mulitplex Mentor.
@Soren: thanks for the reply but the TRIM_AUTO parameter is already set to zero.
Hi,
ArduPlane captures the current stick settings when switching out of manual (code: set_mode() in system.pde calls trim_control_surfaces()) and uses that as neutral. The purpose is to allow you to trim the plane in manual and then use the new trim in auto modes too. Do you have ch5 in a non neutral position?
Do you use 2 different channels for ailerons, why? Flaperons?
There is an auto_trim parameter somewhere (in advanced parameter list at least) that you can set to zero. That should stop the resetting of neutral when switching out of manual. See if that helps.
Regards
Soren
I think we need a few more details.
What is the airframe, standard 4 channel?
Another thing to check is make sure the APM has the correct orientation.