The Sukhoi Su-10 or ''Izdeliye Ye''
() was a
Soviet
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 ...
turbojet
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...
-powered
bomber aircraft built shortly after
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
.
Development
On 26 February 1946 OKB-134 was tasked with developing and building a bomber powered by four
Lyul'ka TR-1A or six
RD-10 turbojet engines. Work began on 24 April 1946, with many different configurations studied before the design was frozen.
Alternative powerplant arrangements were constantly studied and included:-
* 4 x RD-10 (Jumo 004 copies)
* 6 x RD-10 (Jumo 004 copies)
* 4 x Lyul'ka TR-1
* 4 x Lyul'ka TR-1A
* 4 x Lyul'ka TR-2
* 4 x RD-500 (Rolls-Royce Derwent copies)
The Su-10 was a multi-engined jet bomber with a crew of four comprising Pilot, Navigator/Bomb Aimer (usually the Commander of the aircraft), Gunner/Radio Operator, Gunner/Observer. Ejection seats were provided for the Pilot, Navigator and Radio Operator, the tail-gunner escaped after jettisoning the tail barbette.
The airframe was of all-metal semi-monocoque construction with flush-riveted stressed duralumin skinning and highly stressed parts made from high-strength steel. The cantilever shoulder-mounted wings were trapezoidal in plan-form with rounded wing-tips. Built in one piece, each wing was a two-spar structure with ribs and stressed duralumin skinning, using
TsAGI Sh-2-12 airfoils at the root and
SR-3-12 section at the tip.
The tail unit comprised a 45-degree swept fin
and un-swept tailplane at approx 2/3 fin span using TsAGI
1V-00 aerofoil sections.
Aileron
An aileron (French for "little wing" or "fin") is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft. Ailerons are used in pairs to control the aircraft in roll (or movement aroun ...
s and
elevators
An elevator (American English) or lift (English in the Commonwealth of Nations, Commonwealth English) is a machine that vertically transports people or freight between levels. They are typically powered by electric motors that drive tracti ...
were hydraulically boosted.
Mounted at approx half span, the engine nacelles were designed for minimum interference with the wing aerodynamics. The engines were arranged in vertically staggered pairs, with the lower engine completely clear of the leading edge, exhausting under the wing, whilst the upper engine nacelle carried over the wing, exhausting at approx half chord.
Construction of test rigs and a static test fuselage was carried out throughout 1947, and the final propulsion arrangement was settled by a Council of Ministers directive on 11 March 1947, calling for the development and construction of a medium bomber powered by four Lyul'ka TR-1A turbojets. To assist take-off the Su-10 could also use four U-5
JATO
JATO (acronym for jet-assisted take-off) is a type of assisted take-off for helping overloaded aircraft into the air by providing additional thrust in the form of small rockets. The term ''JATO'' is used interchangeably with the (more specific ...
boosters fitted on the lower rear fuselage sides.
The first prototype was completed and ready for flight tests when the OKB was among many shut down at that time and all work stopped. The Su-10 was sent to the
Moscow Aviation Institute for use as an instructional airframe.
Specifications (Su-10 / ''Izdeliye E'')
See also
References
{{Sukhoi aircraft
Su-10
1940s Soviet bomber aircraft
Abandoned military aircraft projects of the Soviet Union