From the experiences of the masses, will outfitters with their own planes or air taxi types allow a Barneys type frame and bag to be loaded.
The reason I ask, a lot of websites I have looked at ,give maximum gear weights and to have your gear in soft sided duffels.
Seems to me it would be a waste of my hard earned to buy an external frame (I have managed to talk myself into the Barneys as my choice , if I do) that I can't put in the plane.
Secondly, has anyone had experience with the delicate folks in airline baggage handling, with an external frame pack. They managed to break a piece off my gun case and put a dirty big gouge in it when I flew to Africa, so I think an external frame could be asking for trouble.