The BICh-14 (aka TsKB-10) was a twin-engined tailless sport / touring 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 1934.
Development
Further development of the
BICh-7A led to an enlarged twin-engined version, a model of which was tested in a wind tunnel, as the BICh-10, with two
M-11 engines on the leading edge of the parabolic wing either side of the cockpit nacelle. Full scale development emerged as the BICh-14, a 2x scaled up
BICh-7A, with
Townend ring
A Townend ring is a narrow-chord (aircraft), chord cowling ring fitted around the cylinders of an aircraft radial engine to reduce drag and improve cooling. It was patented in 1929, and found use on various aircraft of the 1930s and into the 1940s ...
cowlings and up to five seats in the cabin. Construction was of wood with plywood and fabric skin or covering, four spars and sixty ribs.
Flight testing began late in 1934 piloted by
Yu. I. Piontkovskii, and later in 1936 at the
NII VVS by
P.M. Stefanovskii,
M.A. Nyukhtikov and
I.F. Petrov. Results of the flight tests were not encouraging as the aircraft was found to have marginal control and stability, with high stick forces required to raise the nose on landing, as well as an in-effective rudder. Despite the shortcomings of the BICh-14 testing continued through to 1937.
Variants
* BICh-10 – initial twin-engined version tested in a wind tunnel, in 1933, as a model only.
* BICh-14 – A 2x scaled up
BICh-7A with two M-11 radial engines on the leading edges of the wings.
Specifications (BICh-14)
See also
References
* Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875 – 1995”. London, Osprey. 1995.
External links
* http://www.ctrl-c.liu.se/misc/RAM/bich-14.html
{{Chyeranovskii aircraft
1930s Soviet sport aircraft
BICh-14
Aircraft first flown in 1934