I can confirm that this is indeed a genuine JAR Gen Nav exam question as we have had several students at Oxford report it and their recollections tallied consistently. It first came up about 6 months ago. Scratch One Bandit and Cobbler do have good rough sensible solutions and Spartacus 73 has correctly realised that it a calculus problem (which, in my view, is outside the Learning Objectives). I don't believe that David Webb's assessment is right, although I would like to know which answer the JAA mark as correct. Because the equations can't really be laid out on a ASCII-based thread such as this, the answer is attached on the URL below or type in
www.v1rotate.freeuk.com.
As I say in my answer, this is a question that has absolutely no relevance whatsoever to becoming a practical airline pilot. However, if you're thinking of a job as a systems engineer at Litton or Honeywell......
Paul Hickley
General Nav Subject Specialist
Oxford Aviation Training
www.virotate.freeuk.com
[ 24 August 2001: Message edited by: Paul Hickley, Gen Nav Spec, Oxford ]