|Quoting pilotpip (Reply 7):|
The captain shut down the #2 engine. The result is the electric driven hydraulic pump for the #2 system turning on to power the nose wheel steering. Quite annoying isn't it?
Ummm... actually, that should be the #1 that was shut down... Most people that commute will single engine taxi on #1 because it is quieter in the back for the people because the engine driven hyd. pump would be running and not the elec. pump under the cabin... it is the #1 hyd. system that controls the nose wheel steering and also the culprit with the noise around mid cabin on the 145...
That said, a lot of guys like to single engine taxi on #2, and #2 is started first (during pushback) because when the engine is turning and the eng. driven hyd. pump is running it does NOT power the steering, there by allowing for simultaneous pushback operations... unlike starting #1 which must be done AFTER pushback... when on a towbar type push (non-electro)