PPRuNe Forums - View Single Post - Take-off speed schedule
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Old 8th June 2003 | 19:37
  #7 (permalink)  
bronlund
 
Joined: Mar 2002
Posts: 19
Likes: 0
From: europe
Still not sure about it

Hmm..

Redsnail.

Seems like the list you have made agrees with the schedule i started out with..

But still, it may not be all correct..
From Stratocaster and Mr. scientist's point of view, Vmca could be lower than Vmcg.

I've tried to put some speeds in my previous list, taken from my books, and it sounds like they don't quite agree with Stratocaster's books, but here they are..
and as stated earlier, i could be wrong..

BRP
Brake release point

Vmcg
Minimum control speed Ground

Vmc
Minimum control speed with critical engine inoperative
Must not exceed 1.2 Vs

Vef
Engine failure speed

V1
Decision speed
May not be less than Vef
Must not exceed Vr
Must not exceed Vmbe

Vr
Rotate speed
May not be less than V1
May not be less than 1.05 Vmc
May not be less than 1.05 Vmu ( One engine)
A speed such that V2 can be attained before 35ft

Vmu
Minimum unstick speed

Vlof
Lift off speed
May not be less than 1.1 Vmu (All engines) or 1.08 Vmu if limited by elevator power
May not be less than 1.05 Vmu (One engine) or 1.04 Vmu if limited by elevator power

V2min
Minimum take off safety speed
May not be less than 1.2 Vs ( 2 and 3 engine turboprop and turbojet )
May not be less than 1.15 Vs ( more than 3 engines turboprop and turbojet )
May not be less than 1.1 Vmca

V2
Take off safety speed
35’ screen height speed
May not be less than V2min
May not be less than Vr + the speed increment up to 35ft ( Same as V2, but thats what the book is teeling)
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