Ahhh come on Crashdriver, we were on the verge of learning something then. Lets get to the bottome of it
No actually it was a university professor in aeronautical physics.
He should get in touch with Boeing and tell them their FCTM is incorrect and that the same crosswind departure technique as the J3 Cub will suffice.
I will leave it at that and leave you to your own devices, since an academic conversation cannot be completed here.
My favourite part of the acedemic conversation thus far has been
Pull back the houses get smaller, push forward they get bigger.