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The Indian government established a dedicated centre for research into yak husbandry, the ICAR-National Research Centre on Yak, in 1989. It is located at Dirang, Arunachal Pradesh, and maintains a yak farm in the Nyukmadung area at an altitude of 2,750 metres (9,020 ft) above MSL. [26]
Early problems with overheating were fixed by enlarging the radiators and production aircraft had further improved aerodynamics. The time to complete a circle was 23 seconds. It was the best Soviet fighter at high altitude. Yak-9UV. A two-seat trainer version of the Yak-9U (VK-107) with armament reduced to a single Berezin B-20 cannon with 100 ...
Yak-3PD high-altitude interceptor with Klimov VK-105PD engine and a single 23 mm (0.91 in) Nudelman-Suranov NS-23 cannon with 60 rounds of ammunition, reached 13,300 m (43,635 ft) in testing but did not enter production due to unreliability of the engine. Yak-3RD (Yak-3D)
Wild yak Temporal range: 5–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Early Pliocene – Recent Stuffed specimen in the ANSP, Pennsylvania Conservation status Vulnerable (IUCN 3.1) CITES Appendix I (CITES) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Artiodactyla Family: Bovidae Subfamily: Bovinae Genus: Bos Species: B. mutus Binomial ...
UTI-26 – The third and fourth I-26s were completed as dual control trainers, produced as a fighter as the Yak-7. I-28 ([20]) – High-altitude interceptor prototype with Klimov M-105PD engine developed from I-26-2. Differed from I-26 in having an all-metal fuselage and tail and automatic, leading-edge slats on slightly smaller and reshaped wings.
The Yakovlev Yak-15 (Russian: Яковлев Як-15; NATO reporting name: Feather, [1] USAF/DOD designation Type 2 [2]) is a first-generation Soviet turbojet fighter developed by the Yakovlev design bureau (OKB) immediately after World War II.
Efforts in 1971 to develop the 'Mandrake' as a high-altitude interceptor (Yak-25PA) proved unsuccessful. Yakovlev Yak-26. In 1961 a series of lightened 'Mandrakes' were produced as high-altitude target drones. The Yak-25RV-I was used as a manned target for unarmed (no live fire) interception practice, the Yak-25RV-II as a remote-piloted drone.
The dedicated high-altitude photo-reconnaissance variant of the Yak-27 interceptor was named Yak-27R (NATO designation "Mangrove"). The radome and radar were replaced with a glazed nose for an observer/navigator, two cameras were added, and the Nudelman-Rikhter NR-23 cannon was deleted from the port-board.