- Official Post
Just make sure the flight directors are set correctly when you engage the autopilot. When you have them on, you can perpare set the FCU and already pick heading select etc. When you then engage the autopilot it uses the presets that you put in.
When you just turn the autopilot on without the flight directors enabled before then you will engage the autopilot in basic mode, that will try to maintain your current vertical speed. And if that was already big, then it will continue to descent...
The parking brake issue should not happen. I can't see any reason why it should do that, there is no feedback loop or anything like that. With parking brake set it just adds brake pressure to the normal braking that you do with your pedals.
Which airplane are you talking about here? The DR400 has a bit of a difficult system for the brake. Make sure the handle is not locked (for the parking brake the handle is rotated), otherwise you will have no normal brake...
Obviously thats one of the things we need to test before we release the parking brakes. Thanks for the hint!
Cheers,
Jan