The Grigorovich ROM-2 (bureau designation MR-3; military designation MDR-1) was a long-range reconnaissance flying boat designed by the Grigorovich Design Bureau for the Soviet Navy in the late 1920s.
The Grigorovich ROM-2 (bureau designation MR-3; military designation MDR-1) was a long-range reconnaissance flying boat designed by the Grigorovich Design Bureau for the Soviet Navy in the late 1920s. (en)
The Grigorovich ROM-2 (bureau designation MR-3; military designation MDR-1) was a long-range reconnaissance flying boat designed by the Grigorovich Design Bureau for the Soviet Navy in the late 1920s. (en)