. . "Grigorovich ROM-2"@en . . . . "4"^^ . "108.2"^^ . . . "18000.0"^^ . "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 . "6857"^^ . "61"^^ . "180"^^ . . . "V-cylinder inline engine"@en . . . . . . "420.0"^^ . . . . . "4500"^^ . . "met"@en . "1"^^ . "1"^^ . . . . "2"^^ . "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 . . . "Summer 1929"@en . . . "4"^^ . "372"^^ . . . . "59832077"^^ . . . . . . . "1086356202"^^ . "Reconnaissance flying boat"@en . "17.4"^^ . . "4150"^^ . "26.8"^^ . . . "3242"^^ .