Before takeoff on the Dash 8 the left seat pilot selects a mode switch to "air", and the logic is that the aircraft has weight-on wheels with the power levers reduced, so it is landing and the spoilers come up. As the power is advanced, the aircraft must be either taking off or going round, so the spoilers retract.
This has been discussed on this forum in greater depth previously if you want more detail.
Joe
Last edited by AtoBsafely; 31st May 2007 at 01:55.
Reason: content