The BOK-5 () was a tail-less research aircraft designed and built in the
USSR
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
from 1937, by the ''Byuro Osobykh Konstrooktsiy'' (bureau of special design) ().
Development
The
dural
Dural is a semi rural suburb of Sydney, in the state of New South Wales, Australia 36 kilometres north-west of the Sydney central business district in the local government areas of Hornsby Shire and The Hills Shire. Dural is part of the Hills ...
and fabric BOK-5 was a single-engined tail-less monoplane used to develop trailing edge controls for tail-less aircraft. The aircraft had a low aspect ratio moderately tapered wing with the fixed tail-wheel undercarriage, single M-11 engine, pilots cockpit all accommodated by the central nacelle which faired into an integral fin, with rudder, at the rear. The trailing edges were each divided into three with elevators inboard, flaps in the middle and ailerons outboard, with all controls inter-connected as required for the test being carried out (sometimes termed '
Flailevators' although this is usually used for single surfaces performing all three control tasks, not separate surfaces with control mixing). Flight trials were carried out by
Stefanovskii and
Nyukhtikov from the summer of 1937.
Variants
* BOK-6 - Projected tail-less heavy bomber (a.k.a. TB)
Specifications (BOK-5)
See also
References
* Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875–1995”. London, Osprey. 1995.
External links
{{Commons category, BOK-5
* https://www.youtube.com/watch?v=5W1pmqLHYm4
BOK aircraft
1930s Soviet experimental aircraft
Low-wing aircraft
Single-engined tractor aircraft
Tailless aircraft
Aircraft first flown in 1937