Английская Википедия:IS-4 Jastrząb

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

The IS-4 Jastrząb (Instytut Szybownictwa – gliding institute) was a single-seat aerobatic glider designed and built in Poland from 1949.

Development

The IS-4 was built for aerobatics with a high structural strength and a very high maximum speed which could not be achieved in a vertical dive. Due to the pilot's sitting position and the arrangements of the controls, it was difficult for pilots to exceed the 8g loading limit. During high speed flight it was possible for the air-brakes to be sucked out violently, so most pilots ensured that they remained closed by holding the airbrake control.[1]

Variants

  • IS-4 Jastrząb – two prototypes built in 1949.[1]
  • IS-4 Jastrząb bis – Thirty-five production aircraft, three of which were exported.[1]

Specifications (IS-4 Jastrząb bis)

Шаблон:Aircraft specs

See also

Шаблон:Aircontent

References

Шаблон:Reflist

Шаблон:Refbegin

Шаблон:Refend

Further reading

  • Taylor, J. H. (ed) (1989) Jane's Encyclopedia of Aviation. Studio Editions: London. p. 29

External links

Шаблон:Commons category

Шаблон:Polish gliders

  1. 1,0 1,1 1,2 Ошибка цитирования Неверный тег <ref>; для сносок IS-4 не указан текст