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Old 31st Aug 2012, 16:07
  #201 (permalink)  
HazelNuts39
 
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Hi PJ2,

Yes, excellent discussion indeed!

I think the gravity argument is basically correct. But there are more changes during climb that have probably a greater effect on elevator and/or gee:
- due to fuel burned weight and c.g. changes (trim change)
- thrust reduces (trim change)
- due to reducing thrust FPA and vertical speed are constantly reducing, i.e. gee is slightly less than one, except when speed changes from constant CAS to constant Mach and FPA and V/S increase by about 68%.
- climbing at constant Mach AoA is increasing (trim change)

Last edited by HazelNuts39; 31st Aug 2012 at 16:55. Reason: one more point
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