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Old 4th January 2012 | 14:34
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Robbie-Rocket-Pants
 
Joined: Sep 1999
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From: United Kingdom of Great Britain and Northern Ireland
V1 - Vr split on long runways

Hello Chaps,
here is a question which I know may have been asked many times before, but after searching I couldn't find a specific answer.

I fly Boeings and my company uses a Computer Take-Off Performance Program (CTOP) to calculate V-speeds.

Q. When operating from a VERY long wet runway without obstacle hazards (eg MLA), why would CTOP return speeds with a split between V1 and Vr ?

i.e. there is absolutely no way the aircraft would run off the end of an 11000' runway if a reject was made between V1 and Vr.

Thanks.
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