Technical data
Type MUR-1
Function Trainer flying boat
Year 1926
Crew 2
Engines 1*120hp Rhone (M-2)
Length 8.0m
Wingspan 11.5m
Wing area 33.0m2
Empty weight 700kg
Loaded weight 1000kg
Wing Load (kg/m2) 33.3
Power load (kg/hp) 8.4
Speed at 0m 129km/h
Takeoff Speed 85km/h
Landing Speed 70km/h
Landing Roll 100m
10sec
Takeoff Roll 130m
12sec
Turn time 20sec
Range 360km
Flight Endurance 3h
Ceiling 3500m
Climb
1000m 8.0min
2000m 19min
3000m 38min

MUR-1 by D.P.Grigorovich

12k b/w drawing "History of aircraft construction in the USSR", Vol.1 p.402

In 1925 Red Air Force had no trainer flying boat. The only aircraft suitable for training naval pilots was the MU-1 floatplane. Performance of this aircraft was far above of available flying boats (M-5 and others).

D.P.Grigorovich decided to improve the M-5 by installing more powerful engine, replacing the wing with thicker one and strengthening tail structure. Speed was increased, but other characteristics suffered. Increased weight of the tail structure demanded to carry up to 32kg of a 'dead weight' in the nose. Even with this fix, MUR-1 was unsuitable as a trainer.

Flights during Fall-Winter 1926 (pilot T.S.Zhukov) proved that modifications of old designs can not provide positive results. Radically new design was needed to obtain high performance flying boat.

PredecessorsModifications

M-5

M-20
MUR-2 MU-2

ReferencesLinks
  • "History of aircraft construction in the USSR", Vol.1 p.397-398;
  • ...

  • Created July 28, 1998 Back to
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