Yes, feathering locks engage at 800 RPM on the Seneca.
We feather to stop windmilling and reduce drag.
Easier for the company in regards to training, maintenance and spare parts as you only use one type of aircraft.
No, Seneca has a fuel injection system which doesn’t suffer from vapour icing.
Live side to oppose the yawing moment.
V speed in a Seneca:
Vr = 77kts Vx = 76kts Vy = 89kts Vyse = 89kts Vmca = 68kts Vne = 195kts Vno = 163kts Va = 121kts
No, you mechanically change a valve that changes the air intake to air that runs past the exhaust manifold and is therefore heated.
The engine will flood with fuel.
This depends on weight, C.G., temperature and density.
This altitude is usually where the combination of L/D ratio and engine efficiency are maximized.