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pilotyip said:Anyone can fly a jet, it takes a real pilot to fly a prop airplane
enigma said:BTW, have you ever asked about jet pumps or the theory behind an ACM?
The Dash-8s taxiing with one engine feathered may be doing something similar to the Saab 340. When the Saab is on the ground in warm weather, it's normal to use high-pressure bleed air from just one of the engines to run both packs, instead of the usual low-pressure bleed air from both engines. The ITT is very sensitive and unstable when you're doing this, so the engine is normally feathered so it can't be used for taxi thrust.
Buschpilot said:Do the Saab's have the same engine as a Dash? We only feather the props for the 30 sec cool down. That's it. On the other hand, I have seen other operators taxiing out with one feathered. I assumed it was to reduce fuel flow, but I really don't know.