|Wing Load (kg/m2)||58.2|
|Power load (kg/hp)||6.2|
|Speed at 0m||194km/h|
Design started in 1927, assembly - in Summer 1928. Flight tests were performed in Taganrog (July-August 1929). Final tests were performed in Sevastopol by pilot S.T.Rybalchuk. Aircraft behaved well in the air, but takeoff was sluggish, aircraft was surrounded by clouds of water droplets.
It was necessary to built new hull. This job was assigned to OPO-4. During hard time of relocations and reorganizations (see OMOS history) project moved slowly, and soon flight characteristics of the MR-3 also became unsatisfactory...
MR-3 changed its team (again!) - now it was sent to TsKB. There it was on side-tracks until 1931, when I.V.Chetverikov (head of TsKB Naval Department) pushed through a decision to make necessary modification and test MR-3 under new designation MR-3bis.