that's also my recollection - Henry wanted basically the same wing as the Airtourer but some more wing area and space for fuel in the Aircruiser.Regardless, I'd been looking for some sensible info on these cuffs wrt aerodynamic design of the wing/fuselage junction and effect on stall characteristics. Ideally, the local lift coefficient would be maximum at the outboard end of the cuff so stalls there first. But interference from the fuselage is significant and simple theory not really applicable.