HF: how do you know this '10 degrees" ? I know about this,and I checked today.The spoiler begin to raise at a 0.5 units control wheel deflection. At 6 units ,or less, of control wheel deflection the spoiler is full extended. So,what are this 10 degrees ,the book says about?
hudson: I think ,after landing,the spoilers will go fully up,regardless of control wheel position,commanded by the armed speedbrake,ground sensor,wheel spin.You are right about the drag,I guess.