Liberty engines

Liberty-12
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1922?

l.c.

400hp

ANT-3 R-3 prototype	I-1 (Polikarpov) I-1 (Grigorovich) ANT-3 R-3 pre-series	IL-400a IL-3 MRL-1
I-2 Grigorovich	IL-400b	R-III (Shishmarev)