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The Ilya Muromets ("Илья Муромец" in Russian) was the first mass produced bomber aircraft in the world, a massive four-engined biplane that could penetrate deep into the enemy territory and drop a significant load of bombs. It was named after a Russian mythical hero Ilya Muromets.
Development The Ilya Muromets was designed and constructed by Igor Sikorsky at the Russo-Baltic Carriage Factory (RBVZ) in Riga in 1913. It was based on his earlier Russky Vityaz, which had played an important role in the development of Russian aviation and the multiple-engine airplane industries of the world.
Interestingly enough, Russia had a chance to become the birthplace of the first multi-passenger and multi-engine airliner. The Ilya Muromets was first conceived and built as a luxurious airplane. For the first time in aviation history, it had an isolated passenger salon, comfortable wicker chairs, bedroom, lounge and even a bathroom. The airplane also had heating and electrical lighting. On December 10, 1913, the Ilya Muromets was tested in the air for the first time, and on February 25, 1914, took off for its first demonstrational flight with 16 passengers aboard. From June 21-23, it set a world record by making a round-trip from St Petersburg to Kiev in 14 hours and 38 minutes with just one landing. If it had not been for World War I, the Ilya Muromets would have probably started passenger flights that same year.
With the beginning of World War I, Sikorsky decided to change the design of the airplane to become the world's first purpose-designed bomber. Internal racks carried up to 800 kg of bombs, and positions for up to nine machine guns were added for self-defense in various locations, including the extreme tail. The engines were protected with a 5mm armor.
Operational history In August of 1914, the Ilya Muromets was adopted by the Russian Imperial Army. On December 10, 1914, the Russians formed their first ten-bomber squadron, slowly increasing the number to 20 by the summer of 1916. During World War I, the Germans often refused to attack Ilya Muromets in the air due to its defensive firepower. On September 12, 1916, the Russians lost their first Ilya Muromets in a fight with four German Albatroses, three of which it managed to shoot down. This was also the only loss to enemy action during the war, while three others were damaged in combat, but managed to return to base to be repaired.
The heavy bombers of other participants appeared in 1916, all resembling the Russian pioneer to a certain degree. The Russian government and Sikorsky himself sold the design and production license to the English and the French. The Germans tried to copy its design, using the fragments of the example they had shot down over their territory in September 1916.
By the end of 1916, the design was generally believed to have exhausted itself. The ensuing modifications, such as additional armor, made the airplane too heavy and not worthy of upgrading. Even though the English, French and German bombers were faster, Sikorsky decided to switch to a new type of aircraft he would call the Alexander Nevsky.
The Russians built 73 Ilya Muromets bombers between 1913 and 1918. During this period, the Russians were the first in aviation history to perform bombing from heavy bombers, group bomber raids on enemy targets, night-time bombing and bombing photographic control. They were also the first to work out defense tactics for a single bomber engaged in an air combat with a number of enemy fighters. Due to systematic weapon upgrades, the effectiveness of bomb-dropping reached 90%. The Ilya Muromets performed more than 400 sorties and dropped 65 tons of bombs during the war.
The last flight of an Ilya Muromets bomber took place in 1922 at the Air Shooting and Bomb-dropping School in Serpukhov.
Specifications (Ilya Muromets Type E-2)
General Characteristics - Crew: four to eight (max. twelve)
- Length: 18.8 m (61 ft 8 in)
- Wingspan: 34.5 m (113 ft 2 in)
- Height: m ( ft in)
- Wing area: 220 m (2,367 ft)
- Empty: 5,000 kg (11,000 lb)
- Loaded: 6,500 kg (14,300 lb)
- Maximum takeoff: 7,460 kg (16,412 lb)
- Powerplant: 4x Renault 12 engines, 162 kW (220 hp) each
Performance - Maximum speed: 130 km/h (81 mph)
- Range: 560 km (350 miles)
- Service ceiling: 3,200 m (10,496 ft)
- Rate of climb: m/min ( ft/min)
- Wing loading: 29.5 kg/m (6 lb/ft)
- Power/Mass: 0.10 kW/kg (0.06 hp/lb)
Armament: - Bomb loads including 8x 100 kg (220 lb) bombs, 16x 50 kg (110 lb) bombs, or 1x 656 kg (1,450 lb) bomb or
- 6x 127-mm rockets (under the wings)
External links
Related content Related development: Sikorsky Russky Vityaz
Comparable aircraft: Handley Page Type O- AEG R.I - SSW R.I - SSW Forssman - Staaken R - Caproni Ca.3
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