A way to reproduce:
Hold brake button and slowly move slider 1 UP to 100%, then start to add throttle. At some moment this craft will be affected by blades lift, but Gyro/Motor/some other force, for some reasons, wil try to hold it in some centimiters above the ground.
If you will try to throttle without holding brake button - craft will lift off the ground but with spin (cause it has no tale blade to compensate that spin momentum)
@AndrewGarrison thanks for all your good work =)
Thanks to this update I convinced some of my fellas to finally buy your awesome game =)