Ardupilot Mega test flight report.
Today i did my first test flights with the APM installed in my Multiplex Twinstar II.
I tested the Stabilization mode and the Auto mode with six waypoints in a 1,4 km
* Multiplex Twinstar with brushless motors.
* 35 MHz RC
* APM with shield
* Airspeed sensor
* U-blox GPS
* Aerocomm 868 MHz radio modem (Not used)
* Running software built 2010-09-07
* Custom config file except increasing cruise speed and cruise throttle.
* Altitude mixing set to 50%
* Air speed sensor enabled
* Wind about 10 knots with gusts up to 16 knots. Moderate turbulence.
Stabilization worked great with standard settings. Maybe it responded to stick
movement a bit to abruptly, but it was really steady in the quite
Auto mode worked fine. The plane flew the course without any real problems and then started to loiter above the home
position. One strange thing i noticed was that the plane changed
direction during loiter after a few turns. Could it be that at first it
tried to reach home position but never came close enough and then when
it reached home it started circling in the other direction?
Altitude holding worked fine and it was fascinating to see the AP cut the
throttle to zero when the plane reached some thermals when fighting
against the wind to reach a waypoint. You could really hear the throttle
going up and down during the flight.
The only thing that didn't work was downloading the log files after flying. I could only read a
few lines before i got an error. I will file this as an issue at Google
Over all this was a real success. I now feel that i have a platform that is easy to setup, maintain and fly.
Next time i will add telemetry so i can log things as well so i can show off nice