Q400 question

[Saharsh]

Its to give the pilots more control while taxiing, more information can be found below.

Why do Dash-8s taxi onto the runway with extended spoilers? Dash-8 spoilers explained

Both while spotting and while on the plane myself, I have noticed that dash-8s taxi onto the runway with their spoilers extended, and leave them extended until they begin takeoff roll. I decided to do some research into why this happens, and thought I’d share what I learned here, in case anyone else has wondered the same thing as me. Dash-8s have a spoiler switch with two settings, TAXI and FLIGHT. Obviously they taxi to the runway with the spoilers in TAXI mode, which disables them completel…