PPRuNe Forums - View Single Post - Courting disaster by "demonstrating" Vmca
Old 21st May 2006, 13:23
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hugh flung_dung
 
Join Date: Jan 1999
Location: Lurking within the psyche of Dave Sawdon
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cavortingcheetah:
6 out of 7 the gear is up. I assume there should not be so many not's there either

FWIW a heading change of up to 20deg is allowed but no loss of height, rudder force should be <770N and roll control force should be <220N with a yoke. BUT, as I said before, Vmca is a DYNAMIC situation involving "sudden complete failure of the critical engine" and has no practical relevance to flight instruction.


Centaurus:
Demos of the need to feather, raise flap, decrease drag and add small bank angle are an essential part of the training and this requires flight close to Vmc but must be stopped when a control reaches a limit or Vs+5 is reached, as I've said before. This achieves the aim of the exercise without introducing risk.

The real safety issue here is stalling when asymmetric, rather than Vmc

The UK syllabus (complete with typos!) is available here: http://www.caa.co.uk/docs/33/CAP601.PDF
HFD

Last edited by hugh flung_dung; 21st May 2006 at 13:40.
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