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Antonov A-1

From Alfawiki
Antonov A-1
Company typeGlider aircraft
IndustryAviation
Founded1930
FounderOleg Konstantinovich Antonov
Area served
Soviet Union, Turkey, Finland
ProductsSingle-seat training glider

A-1 (also known as the Antonov A-1) is a single-seat training glider developed in the Soviet Union during the 1930s and 1940s. Apart from its Soviet origins, this glider was also manufactured in Turkey by the THK and MKE, as well as in Finland by PIK and other producers.

Development

File:THK müzesi uçak heykeli.jpg
Monument of the full-scale THK-4 glider displayed at the Museum of Turkish Aeronautical Association
File:Harakka I H-12 Karhulan ilmailukerhon lentomuseo 4.JPG
Harakka I and Harakka II gliders exhibited at the Karhulan ilmailukerho Aviation Museum

The A-1 traces its design lineage back to the Standard-2 (Стандарт-2), a glider created and flown by Oleg Konstantinovich Antonov in 1930,[1] which itself evolved from the earlier Standard-1.[2] Production was extensive, with approximately 5,400 units produced across the U-s3, U-s4, and P-s2 major variants.[3] This design also served as a foundation for the Antonov A-2 and its family of two-seat models. By 1937, total output including these two-seaters surpassed 7,600 units.[4]

Although individual models within this series differed in certain details, they all shared a fundamental design concept, allowing interchangeability of components.[1][5] The configuration featured a standard primary glider layout with a conventional empennage mounted on a lengthy boom instead of a traditional fuselage. This boom was designed to fold sideways for compact storage.[6] The high-mounted monoplane wing rested on a pylon above this "keel" structure and was supported by two struts on each side.[7] The pilot occupied a position ahead of the wing inside a simple U-shaped wooden fairing that slid forward to allow entry and exit.[8] The landing gear consisted of a single skid under the keel, which could alternatively be equipped with small wooden wheels.[9]

The initial primary training variants (marked У or 'U') featured wings with constant chord,[7] while later models optimized for soaring flight (designated П or 'P') incorporated longer wingspans with tapered outer panels and an aerodynamic nose fairing.[10] The final evolution in this series were gliders intended for tow-launching (marked Б or 'B'), which combined the extended wings and streamlined nose of the P-types with an enclosed cockpit canopy.[10]

Following World War II, unlicensed (or licensed according to some accounts) reproductions of the A-1 and A-2 were manufactured in Turkey by Kayseri Tayyare Fabrikasi [tr] through reverse engineering of the Ps-4 model:

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At least eleven Ps-4 replicas were produced by Kayseri Tayyare Fabrikasi.[11] Both THK and Makina ve Kimya Endüstrisi Kurumu (MKE, MKEK) manufactured numerous units of the THK-4 (A-1, U-s4), THK-7 (A-2, P-s2), and MKEK-6 (A-2, P-s2), which served as trainers for Turkish military aviators.[12]

During the Winter War, Finnish forces captured several Ps-4 gliders along with their blueprints in Äänislinna. These were utilized by Polyteknikkojen Ilmailukerho to develop locally produced variants named Harakka I and Harakka II (also known as PIK-7, an enhanced version of Harakka I) for pilot training and aeronautical research within Finland.[13]

Variants

In all instances, the letter "s" denotes serii (серии), which translates to 'series'.

Prototypes

Standard-1 (Стандарт-1)
Standard-2 (Стандарт-2)

Trainers

Uchebnyi (Учебный, meaning 'Trainer')

U-s1 (У-с1)
U-s2 (У-с2) (The initial model produced in series)
U-s3 (У-с3) (A total of 1,600 units manufactured)
U-s4 (У-с4) (Renamed as A-1, this was the primary production model with 3,000 built)

Sailplanes

Paritel (Паритель, translated as 'Sailplane'), also known as Upar (Упар), a blend of учебный паритель (uchebnyi paritel, meaning 'training sailplane') with 800 examples constructed

P-s1 (П-с1)
P-s2 (П-с2)

Towed

Buksirovochnye (Буксировочные, meaning 'Towed') with 265 units completed by 1937

B-s3 (Б-с3)
B-s4 (Б-с4)
B-s5 (Б-с5)

Specifications (A-1)

File:Antonov A-1.svg

Template:Aircraft specs

See also

Notes

  1. ↑ 1.0 1.1 Sheremetev 1959, 20
  2. ↑ Krasil'shchikov 1991, 145
  3. ↑ Central Museum of the Air Force
  4. ↑ Krasil'shchikov 1991, 143
  5. ↑ Shushurin 1938, 13
  6. ↑ Shushurin 1938, 16
  7. ↑ 7.0 7.1 Sheremetev 1959, 21–22
  8. ↑ Sheremetev 1959, 40
  9. ↑ Sheremetev 1959, 42
  10. ↑ 10.0 10.1 Krasil'shchikov 1991, 146
  11. ↑ Lua error in Module:Citation/CS1/Configuration at line 2123: attempt to index field '?' (a nil value).
  12. ↑ Deniz 2004
  13. ↑ Lua error in Module:Citation/CS1/Configuration at line 2123: attempt to index field '?' (a nil value).

References

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Template:Antonov aircraft Template:THK aircraft Template:MKEK aircraft

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