Technical data
Type MR-3
Function Naval Recce
Year 1929
Crew 2
Engines 1*500/680hp BMW-VI
Length 11.4m
Wingspan 15.6m
Wing area 53.0m2
Empty weight 2027kg
Loaded weight 3082kg
Wing Load (kg/m2) 58.2
Power load (kg/hp) 6.2
Speed at 0m 194km/h
Landing Speed 85km/h
Turn Time 29sec
Landing Roll 22sec
Takeoff Roll 35sec
Range 750km
Flight Endurance 4h
Ceiling 4000m
Climb
1000m 7min
2000m 15min
3000m 37min
Armament
Guns 1...2mg?
Bombs ?

MR-3 (MR-5) by OMOS

40k b/w photo "History of aircraft construction in the USSR", Vol.1 p.403

Biplane flying boat, development of the MR-2.It retained layout, armament and payload from the predecessor, but had more powerful BMW-VI engine and all-metal hull.

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.

PredecessorsModifications
MR-2
MR-3bis MR-5bis
Product '0'

ReferencesLinks
  • "History of aircraft construction in the USSR", Vol.1 p.403-404;
  • None?

    Created July 29, 1998 by
    Alexandre Savine
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