Sukhoi Su-12

Infobox Aircraft
name=Su-12


caption=
type=Reconnaissance aircraft
manufacturer=Sukhoi
designer=Pavel Sukhoi
first flight=26 August 1947
introduced=
retired=
status=Prototype
primary user=Soviet Air Force
more users=
produced=
number built=1
unit cost=
variants with their own articles=

The Sukhoi Su-12 (Aircraft RK) was a prototype Soviet reconnaissance and artillery spotter aircraft.

Development

In November 1943, the Sukhoi OKB designed an artillery spotter aircraft based on the German Focke-Wulf Fw 189.cite web|url=http://www.sukhoi.org/eng/planes/museum/su12/|title=Sukhoi Su-12|work=Sukhoi Company Museum|accessdate=2007-01-14] As designed, the aircraft had a crew of three and was powered by a pair of Shvetsov M-62 engines. The aircraft was initially denied funding but was eventually approved thanks to an intervention by the Soviet Chief Marshal of Artillery N.N. Voronov. As a result of evolving specifications, the crew was increased to four and the engines were changed to more powerful Shvetsov ASh-82M with 2,200 hp (1640 kW).

The Su-12 prototype flew on 26 August 1947 with N.D. Fikson at the controls. Test flight program was completed by 30 October. Due to problems with the ASh-82M engines, the powerplant was changed to ASh-82FN making 1,850 hp (1380 kW). While reliable, the less-powerful engines caused the Su-12 to miss its top speed and service ceiling specifications. The Su-12 successfully completed government testing in September 1949 and was recommended for production. Due to lack of production capacity in the USSR, in October 1949 it was proposed to build the airplane in Czechoslovakia. However, the application for production was denied, citing failure to meet performance specifications.

Operators

;USSR
*Soviet Air Force

pecifications (Su-12)

aircraft specifications

plane or copter?=plane
jet or prop?=prop

ref=Shavrovcite book|author=Shavrov V.B.|year=1994|title=Istoriia konstruktskii samoletov v SSSR, 1938-1950 gg. (3 izd.)|publisher=Mashinostroenie|id=ISBN 5217004770]
crew=Four
capacity=
length main=11.92 m
length alt=39 ft 1 in
span main=21.57 m
span alt=70 ft 9 in
height main=5.54 m
height alt=18 ft 2 in
area main=52 m²
area alt=560 ft²
airfoil=
empty weight main=6970 kg
empty weight alt=15,365 lb
loaded weight main=8,839 kg
loaded weight alt=19,485 lb
useful load main=
useful load alt=
max takeoff weight main=
max takeoff weight alt=
more general=

engine (prop)=Shvetsov ASh-82FN
type of prop=14-cylinder air-cooled radial engine
number of props=2
power main=1,380 kW
power alt=1,850 hp
power original=

max speed main=530 km/h
max speed alt=285 knots, 330 mph
max speed more=at 5600 m (18,370 ft)
range main=1,140 km
range alt=615 nm, 710 mi
ceiling main=11,000 m
ceiling alt=36,090 ft
climb rate main=7.5 min to 5,000 m
climb rate alt=16,405 ft
loading main=
loading alt=
power/mass main=
power/mass alt=
more performance=
*Takeoff roll: 230 m (755 ft)
*Takeoff roll: 320 m (1,050 ft)
guns=4× 20 mm (0.79 in) Berezin B-20 cannon — one fixed forward-firing, two in the upper turret, one in the tail turret
bombs=Up to 800 kg (1,765 lb) of bombs
avionics=

References

ee also

aircontent
related=

similar aircraft=
*Focke-Wulf Fw 189

sequence=

lists=

see also=