I, also, considered the possibility of this being a 'Troll' of the Airbus/Boeing question and so 'paused' the thread whilst I looked at the matter.
Troll (Internet) - Wikipedia, the free encyclopedia)
However, I think that
onthefly1 has asked a genuine question but if this proves otherwise, then action will be swift!
So I repeat my welcome to the OP (Original Poster) and thank those who have replied as this forum is here to answer these genuine concerns. If the OP would like to follow up their post? Or PM (Private Message) to me, that would be helpful