Originally Posted by
Cost Index
If VMCA typically increases with a decrease in weight then why does my POH for my aircraft >5700 kg give me a value for VMCA at MTOW? (amongst other things)
Is this because of performance? I thought VMCA was a controllability issue only.
After my recent chastening I'm reluctant to dive in here, but anyway.
Does it just give that single value? In which case, unless its a REALLY new aircraft, that VMCA should have been determined at min flight weight.
VMCA is determined by controllability considerations, and is then used to determine a constraint on scheduled speeds for performance purposes.