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Old 2nd April 2020, 22:39
Graham Boak Graham Boak is offline
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Re: Soviet Aircraft Identification.

More pedantically, just SB. The Western habit of calling it the SB-2 probably (my guess) came from the Russian use of SB-2M100 identifying the engines. Whether this example is an SB-2M100 or an SB-2M105 is impossible to tell from this photo, but probably an early example from the gun position.
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