The UI provided for the Hydra seems to be the same as for Dodo, Shamal, etc (as far as movement is concerned). The thrusters seem to automatically switch between pointing backwards and downwards, perhaps based on speed, but it's not clear how. Is there a way to control them directly?
This also makes movement on ground hard, since the thrusters are pointing downwards.
Best Answer
Unfortunately on Android & iOS there is no way to control this. This may come in the future as there has been a lot of criticism on the flight controls for mobile devices, but that is only speculation.
What i have done for other games is get a bluetooth controller connected to my device, but that is not compatible with all games, and i cant confirm it would be with SA, i have managed it with Vice City though.