JT,
The official source for stall speed, Vref and landing distance is the AFM.
If the AFM doesn't schedule these as a function of cg, then Vilas' speed additive to Vapp is in the realm of a few knots for grandma and the kids, I should think.
Perhaps the manoeuvre margins to alpha-floor and alpha-prot are a bit marginal at Vref and forward cg?
Is there a reference for it?
Last edited by HazelNuts39; 14th Aug 2013 at 12:32.