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The Short Sturgeon 1 (RK787). First flown by Geoffrey Tyson on 7 June 1946. A far cry from what it finally ended up looking like!
SU 5 with a piston engine M-107A and an auxiliary compressor jet engine
Now that the Su-5 has been identified I'd like to offer up this one
Thanks all of you for so interesting photographs, and, please, excuse my awful English.
Maybe a Ryan YO-51?
Can be one of the three builts Ryan YO-51?