10Kh
Encyclopedia
10Kh was the designation for the initial series of Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 air-launched pulse jet engine
Pulse jet engine
A pulse jet engine is a type of jet engine in which combustion occurs in pulses. Pulsejet engines can be made with few or no moving parts, and are capable of running statically....

 powered cruise missiles, reverse engineered from the Fieseler Fi 103 (V-1) flying bomb. cruise missile
Cruise missile
A cruise missile is a guided missile that carries an explosive payload and is propelled, usually by a jet engine, towards a land-based or sea-based target. Cruise missiles are designed to deliver a large warhead over long distances with high accuracy...

s developed in the 1950s
1950s
The 1950s or The Fifties was the decade that began on January 1, 1950 and ended on December 31, 1959. The decade was the sixth decade of the 20th century...

 (and cancelled in the same decade) by the OKB-51 under the leadership of Vladimir Chelomey and based on the V-1 flying bomb.

History

Reports of the German
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 V-1 flying bomb
V-1 flying bomb
The V-1 flying bomb, also known as the Buzz Bomb or Doodlebug, was an early pulse-jet-powered predecessor of the cruise missile....

 attacks on London prompted Stalin to order a program to develop a Soviet equivalent, the program commencing in June 1944. Vladimir Chelomey, who had been working on pulse jet engines, was assigned to the project in October 1944 and given control of the OKB-51 design bureau following the death of famous designer N.N. Polikarpov. The program was assisted by the recovery of a partial V-1 by Societ forces at the Blizna
Blizna
Blizna is a village in the administrative district of Gmina Ostrów, within Ropczyce-Sędziszów County, Subcarpathian Voivodeship, in south-eastern Poland. It lies approximately north of Ostrów, north of Ropczyce, and north-west of the regional capital Rzeszów...

 test range in Poland. The initial V-1 copy was called 10Kh and later Izdeliye 10 ("Article 10"). Serial production was scheduled to commence in March 1945 with 100 per month, increasing to 450 per month later that year.

By the end of 1944 the development of the D-3 pulse engine that propelled the 10Kh was at the prototype stage and the first production 10Kh was ready on February 5, 1945. As no launching ramps had been constructed, the first test was an air launch from a Petlyakov Pe-8
Petlyakov Pe-8
The Petlyakov Pe-8 was a Soviet heavy bomber designed before World War II, and the only four-engine bomber the USSR built during the war. Produced in limited numbers, it was used to bomb Berlin in August 1941. It was also used for so-called "morale raids" designed to raise the spirit of the Soviet...

 heavy bomber on 20 March 1945, near Tashkent
Tashkent
Tashkent is the capital of Uzbekistan and of the Tashkent Province. The officially registered population of the city in 2008 was about 2.2 million. Unofficial sources estimate the actual population may be as much as 4.45 million.-Early Islamic History:...

. By 25 July 1945 66 missiles had been launched, of which 44 transitioned to autonomous flight, 22 of these reaching the range target and 20 maintaining the required heading. A batch of improved 10Kh (Izdeliye 30) were constructed with wooden wings, and 73 more air launches were performed in December 1948. A ground launched variant called 10KhN was also tested in 1948, which used rocket-assisted takeoff from a ramp.

The purpose of the first tests was to determine the factibility of dropping the 10Kh missiles from a plane in flight and, about 100 meter below the plane, ignite the pulse jet, but only 6 out of 22 missiles did so correctly. The second series of tests were on corrected faults in the missiles, allowing a success of 12 out of the 22 missiles launched. The final tests were conducted to determine the precision (6 of 18 missiles launched impacted the target) and effectiveness (from 4 missiles, 3 detonated successfully) of the missiles.

Variants

10Kh
The initial production version of the V-1 reverse engineered look-alike, powered by a single Chelomey D-3, reverse engineered Argus As014.

10Kh Izdeliye 30
Improved version with wooden wings.

10KhN
A ground launched version using rocket assisted take off gear to boost the missle up a launch ramp.

14Kh
Further development with revised wings of several configurations and structural material, powered by single Chelomey D-5.

14KhK1
An outgrowth of the Kh14 powered by a single Chelomey D-6.

15Kh
A ship launched version.

16Kh
Experimental missiles using Kh10 airframes with single Chelomey D-6 engines, later tested with two Chelomey D-3 engines mounted side by side on V-configured pylons on the aft fuselage and extended tailplanes with rectangular fins and rudders at the tailplane tips.

17Kh
A ship launched version.

18Kh
Further development of the 10Kh series of cruise missiles.

Gliding bomb
An unpowered gliding bomb was also derived from the 10Kh featuring a twin tail similar to the 16Kh in addition to a central fin, as well as a jettisonable undercarriage.
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