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  • Sikorsky Ilya Mourometz (Series) Heavy Bomber / Reconnassaince Aircraft


    The Mourometz featured an internal bomb bay and bomb sighting device, forming the worlds first bomber group under the flag of the Imperial Russian Air Force.

     Updated: 3/17/2017; Authored By Staff Writer; Content ¬©www.MilitaryFactory.com


    The Sikorsky Ilya Mourometz series of aircraft were the world's first four-engine bombers in operational service. Igor Sikorsky, his name synonymous in the modern world for the company's line of American helicopters, was already making a name for himself in Russia as chief designer at the Russo-Baltic Railroad Factory. There, he developed the world's first four-engine aircraft - the 1913 Russky Vitaz (S-21). This spawned the basic design for the Bolshoi Bal'tisky ("Great Baltic") Type B aircraft which flew for ten minutes on May 13th, 1913. The Bolshoi Bal'tisky became the basis of the larger Ilya Mourometz (S-22).

    The aircraft was conceived of as a four-engine, luxury commercial passenger transport featuring such revolutionary amenities as cabin windows, an in-flight berth complete with a washroom, a heated and lit passenger compartment separated from the crew cockpit and relatively comfortable passenger seating for up to 16 on wicker chairs. The cabin floor was also glazed over to allow for a unique passenger perspective of high-altitude flight. Doors on either side of the fuselage permitted mechanics to service and repair the engines in flight.

    Though hardly a spacious aircraft by today's standards, the Ilya Mourometz (IM) was ahead of its time in many ways, much to the credit of Sikorsky's forward-thinking vision. Electricity for the cabin was provided for by a wind-powered generator while heating was accomplished through radiators. First flight of the Ilya Mourometz was achieved on December 13th, 1913 while the aircrafts first passenger flight occurred a short time later on February 25th, 1914. In this event, 16 passengers were carried over Moscow for five hours, hitting an altitude of just over 6,500 feet and reaching speeds over 60 miles per hour. Production was handled at the Russo-Baltic Carriage Factory (RBVZ) in Riga beginning in 1913.


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    Sikorsky Ilya Mourometz Type V No 167 Technical Specifications


    Service Year: 1913
    Type: Heavy Bomber / Reconnassaince Aircraft
    National Origin: Russia
    Manufacturer(s): Russo-Baltic Wagon Company - Russia
    Production Total: 85



    Structural (Crew Space, Dimensions and Weights)


    Operating Crew: 4 to 12
    Length: 57.41 feet (17.5 meters)
    Width: 97.77 feet (29.80 meters)
    Height: 13.12 feet (4.00 meters)

    Weight (Empty): 7,716 lb (3,500 kg)
    Weight (MTOW): 11,023 lb (5,000 kg)

    Installed Power and Standard Day Performance


    Engine(s): 4 x RBVZ-6 engines devliering 150 horsepower each.

    Maximum Speed: 75 mph (120 kph; 65 knots)
    Maximum Range: 311 miles (500 km)
    Service Ceiling: 9,843 feet (3,000 meters; 1.86 miles)
    Rate-of-Climb: 364 feet-per-minute (111 m/min)

    Armament / Mission Payload


    Various combinations of 12.7mm and 15,3mm Maxim, Lewis, Madsen or Colt machine guns as well as recoiless Gelvig/Oranovsky 3" cannons and Hotchkiss 37mm cannons.

    Rocket and bomb load up to 1,100 lb.

    Global Operators / Customers


    Poland; Imperial Russia; Soviet Union; Ukraine

    Model Variants (Including Prototypes)


    No 107 - Appearing 1913; fitted with 4 x Argus engines of 100 horsepower each.

    Kievsky No 128 - Appearing 1914; fitted with 2 x Argus engines of 140 horsepower each and 2 x Argus engines of 125 horsepower each.

    Type B No 135 - Appearing 1914; fitted with 4 x Argus engines of 130 horsepower each.

    Type B No 136 - Appearing 1914; fitted with 2 x Salmson engines of 200 horsepower each and 2 x Salmson engines of 136 horsepower each.

    Type B No 137 - Appearing 1914; fitted with 2 x Salmson engines of 200 horsepower each and 2 x Salmson engines of 136 horsepower each.

    Type B No 138 - Appearing 1914; fitted with 2 x Salmson engines of 200 horsepower each and 2 x Salmson engines of 136 horsepower each.

    Type B No 139 - Appearing 1914; fitted with 2 x Salmson engines of 200 horsepower each and 2 x Salmson engines of 136 horsepower each.

    Type V (S-23) - Appearing 1914; fitted with 4 x Sunbeam Crusader V8 engines of 148 horsepower each; 32 to 34 Type V examples produced in whole.

    Type V No 151 - Appearing 1915; fitted with 4 x Argus engines of 140 horsepower each.

    Type V No 159 - Trainer Aircraft; appearing 1915; fitted with 2 x Sunbeam engines of 225 horsepower each.

    Type V No 167 - Appearing 1915; fitted with 4 x RBVZ-6 engines of 150 horsepower each.

    Type G-1 - Appearing 1916; fitted with 4 x RBVZ-6 engines of 150 horsepower each.

    Type G-2 "Russobalt" - Appearing 1916; fitted with 4 x RBVZ-6 engines of 150 horsepower each.

    Type G-3 "Renobalt" - Appearing 1916; fitted with 2 x Renault engines of 220 horsepower each and 2 x RBVZ-6 engines of 150 horsepower each.

    Type D-I DIM - Appearing 1916; fitted with 4 x Sunbeam engines of 150 horsepower each.

    Type E "Yeh-2" - Appearing 1917; fitted with 4 x Renault engines of 220 horsepower each; 12 examples produced.