It was mostly known as S - sparka (otherwise explained as ,  (speed) or Stalin), also known as BBS -  (close-range fast bomber), BB - bombardovshchik Bolkhovitinova, LB-S -  (light bomber paired), SSS -  (very fast aircraft).
S - sparka was commonly known as speed or Stalin. It was also referred to as BBS - close-range fast bomber, BB - bombardovshchik Bolkhovitinova, LB-S - light bomber paired, and SSS - very fast aircraft.