Yak 11 Aircraft - The Yakovlev Yak-11 was a trainer aircraft used by the Soviet Air Force and other Soviet-influenced air forces from 1947 to 1962. Developed and produced by the Yakovlev Design Bureau, the aircraft was introduced in 1946 and retired in 1962.
In mid-1944, the Yakovlev Design Bureau began development work on a new advanced trainer aircraft derived from the Yak-3 single-engine fighter, but training aircraft were not a high priority due to World War II.
Yak 11 Aircraft
In late 1945, the first prototype, designated as Jack-UTI or Jack-3UTI, took to the skies for the first time. The prototype was built on the Yak-3U, except for the seven-cylinder, single-row, air-cooled Shvetsov Ash-21 radial engine that replaced the earlier ASh-82 Yak-3U. The prototype featured a similar all-metal wing structure and composite metal-wood fuselage construction.
Imgp8147 Yakovlev Yak 11 Ddr Air Force 225 Zap16.com Air Show Photography, Civilian And Military Aircraft Fact Sheets
A stretch roof with various sliding covers houses the pilot and spotter in a tandem configuration. The Yak-UTI has a 1×12.77 mm Berezin UB gun synchronizer and two 100 kg bombs in wing mounts.
An improved prototype took to the skies in 1946, incorporating better cockpits and a redesigned engine mounted on shock-absorbing mounts.
In October 1946, the prototype passed state testing, and in 1947 it was successfully put into production at the Saratov and Leningrad factories. The production aircraft weighed more than the prototypes and later series were fitted with conventional, non-retractable landing gear and modified propellers.
The Yak-11 is armed with an optional 7.62 mm ShKAS machine gun as an alternative to the UBS, while the others are equipped with rear-viewing periscopes mounted above the windshield. A total of 3,859 Yak-11s were produced in the Soviet Union from 1947 to 1955. This aircraft was also manufactured under license in Czechoslovakia and a total of 707 were produced.Flight Kunovis designated it the C-11.
Yakovlev Yak 11
Yak-11 has a maximum speed of 251 knots and a cruising speed of 200 knots. It has a range of 691 nautical miles, can fly up to 23,295 feet and climb at a speed of 1,600 feet per minute. The maximum take-off weight is 2482 kg and the maximum payload is 649 kg. The Yakovlev Yak-11 (Russian: Яковлев Як-11; NATO reporting name: "Moose") was a trainer aircraft used by the Soviet Air Force and other Soviet-influenced air forces from 1947 to 1962.
The Yakovlev Design Bureau began work on an advanced trainer based on the Yak-3 fighter in mid-1944, but the trainer was of low priority due to World War II.
The first prototype of the new trainer aircraft, called the Jak-UTI or Jak-3UTI, flew in late 1945. It was based on the radial Yak-3U, but replaced the ASh with the new Shvetsov ASh-21 radial sev-cylinder. -82 Jak-3U .
It used the same all-metal wings as the Yak-3U with a fuselage of composite metal and wood construction. The pilot and observer sit under a tall canopy with separate sliding covers. The aircraft's armament consisted of one UBS 12.7 mm synchronized machine gun and wing mounts for two 100 kg (220 lb) bombs.
Aircraft N190jf (1955 Yakovlev Yak 11 C/n 171521) Photo By Ingo Warnecke (photo Id: Ac1517379)
An improved prototype flew in 1946 with revised cockpits and a revised engine, the engine mounted on shock absorber mounts.
The aircraft passed state testing in October 1946, and production began in 1947 at factories in Saratov and Lingrad.
Production Yak-11s were heavier than the prototypes, and later series were fitted with non-retractable tail wheels and modified propellers. A 7.62 mm ShKAS machine gun was sometimes mounted in place of the UBS, and some were equipped with periscopes to look back on the windshield.
Soviet production totaled 3,859 aircraft between 1947 and 1955, with another 707 built under license in Czechoslovakia as the C-11.
H King (pnf) Yak 11 Red Reno Racer Epo 1450mm (57\
In 1951, Yakovlev modified the Yak-11 design and added a folding tricycle undercarriage, two versions were proposed, the Jak-11U Basic Trainer and the Jak-11T Professional Trainer, which featured equipment similar to modern jet fighters. The new aircraft had reduced fuel efficiency and was unsuitable for operations on rough or icy runways, so it was rejected for service in the Soviet Union, although a few examples were built in Czechoslovakia as the C-11U.
The Yak-11 served as the standard advanced trainer aircraft of the Soviet Air Force and DOSAAF in 1947.
The Yak-11 and C-11 were used by all Warsaw Pact countries and exported to eighty countries, including many African, Middle Eastern and Asian countries.
North Korean Yak-11s were used in combat during the Korean War, the first North Korean aircraft shot down by US forces was a Yak-11, destroyed by a North American F-82 Twin Mustang over Kimpo Airfield on 27 June. 1950.
Sherman Smoot 'czech Mate' Yakovlev Yak 11 Crashes Shortly After Takeoff On Engine Failure Near Minter Field Airport. One Dead
Due to the Yak-3 line, the Yak-11 is very popular among warbird enthusiasts. Highly modified versions of the Yak-11 are often seen at air races. About 120 Yak-11s are in service.
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