I'm trying to set up a v-tail plane with a new APM2 board. Here's my history with the plane...
1. Configured the plane as RC only and flew it with V-tail mixing in the radio. Flew great.
2. Added APM2 board and discovered V-tail wasn't supported...gotta get a v-tail mixer.
3. Removed APM2 and added a FMA Direct MX-80 V-tail mixer. Flew fine.
4. Added APM2 board. Plugged elevator lead from mixer into Output 2 on APM2. Rudder into Output 4. The only tail control I get is UP elevator and RIGHT rudder. DOWN and LEFT give no response.
Any ideas on what to try would be appreciated.