Incroyable ! Tupolev ( he is nart a thing - but a person silly!) got the plans for Concorde and..... couldnt make it fly
( a bit like the Brits and V2 - they gardda enough of them 1945. and still cdnt get ont to fly - I know why - one ( no two) of the British Rocket Group tried to teach me maff. - one had memorised the log tables ( so didnt need a book ) and that STILL er did me no good)
The concorde flew because an uplift vortex er uplifted it
and if you 'shed the vortex' (*) it fell out of the sky as happened to the concordski at regular intervals
(*) vortex shedding is what makes aeolian harps go ningy ningy nong - and accounts for the constant wind at Tacoma 1940 making old grumpy ( the bridge silly!) come down - vortex shedding at reg intervals gave the repeating propulsive forces(*)
(*) if you look at film of old grumpy ( the bridge at tacoma silly) then you will see it twisting at its first torsional frequency too
[ whistles and catcalls from the usual suspects complaining wot orl dat abart den etc etc]
thx to Karolyi
https://www.sciencedirect.com/science/article/pii/S2468013321000267
o come on.... it makes a difference to the usual AB crap innit