Left Trigger will spin the props, however, the speed climb is crazy fast.
Then I figured out milking or tapping the left stick will move you forward with occasional LS taps.
The turning is more irritating. and only tapping right stick to turn is tricky.
Took me 30 mins to finally get through the quest and course after many crashes and corkscrewing.
It was not World of Warplanes...
I will try again on a plane tonight, the right stick was very sensitive and was definitely doing the roll.
Left stick would delay when moved, but would ramp up real fast. In the end most of my flying was gliding with small bumps of LT thrust.
Not a fan of the flight mechanic at the moment frankly. Will give it another go.
For those having difficulty flying in terratech please try the venture glider's design which should be easily reproducible and is quite forgiving with the presently - available flight controls. The tail wing overhangs and has a venture radar attached to it for balance. As stated in the Steam workshop to take off with the venture glider press forward and thrust.