Airframes
Benevolens Magister
Ah, sorry Graeme. By 'two distinct types', I meant the original series - A,B, C etc, then, for want of a better description, the modified version which still had a 'series' letter, an a different name, but not turboprop or similar 'conversions'.
Nit picking, I know, but Gary is close, and you are closer !
A very strong clue to help - this model was American, and an earlier series before ..............
Nit picking, I know, but Gary is close, and you are closer !
A very strong clue to help - this model was American, and an earlier series before ..............