Oh! Please!...use some common sense!
What a total waste of space this thread is!
STREWTH!! if you can't work this problem out, none of you posting should be in the aviation industry!
GOD help us all with the current crop of turkeys posing as aviation people!!!
PS: Because it's unfair of me to treat you like idiots, without giving you a chance to redeem yourselves, let me give you a clue to the answer you seek....
HAVE A LOOK AT THE OPS MANUAL!!!