Question about the intake deflectors here: I understand that extending intake deflectors requires sufficient bleed air pressure, which is achieved by spinning the engines up to 80% turbine RPM. Problem is, this required pushing the throttle to near 100%, and the aircraft starts moving, even with the parking brake applied. Feathering the props helps a little, but nowhere near enough. By the time the intake deflectors are fully extended, I may already have crashed into something, driven off the taxiway / runway, or damaged the engine due to high RPM while on grass. Considering this, spawning at a grass airfield is highly problematic, I have to start at an airport with asphalt runways or at least an asphalt apron, and then fly over to the grass field, extend intake deflectors during approach, and not shut down before taking off again.
So is this behavior consistent with real Twin Otters? If so, how do people start up on grass fields with real Twin Otters? Is there some sort of trick to this that I'm not aware of? Or is this something that needs changing in the simulation?