Aircraft Overstressing
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@ShadowSix , Thanks for this info... Based on this I would agree that the negative G limit should be set to 3.8 * 0.4 = -1.52 to meet the certification authority requirements. When combined with the existing "load_safety_factor =1.2" this should be sufficient to resolve the problem of overstressing in rough air.
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@RetiredMan93231 That works for me :) Thanks to all for the input on this thread.
For further information, this is the load_safety_factor line from the Bonanza flight_model.cfg file:
load_safety_factor = 1.5 ; Flap negative load limit when down. Same dimension as gravity vector FEET/SECONDS^2
If this is correct it appears from this that the load_safety_factor line only applies when the flaps are down, which further justifies changing the negative G limits in the Piper Arrow file rather than change the load_safety_factor.