Sukhoi Su-5

Infobox Aircraft
name=Su-5 (I-107)


caption=
type=Fighter
manufacturer=Sukhoi
designer=Pavel Sukhoi
first flight=6 April 1945
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-5 or I-107 was a Soviet mixed-power (propeller and motorjet) prototype fighter aircraft built toward the end of World War II.

Development

The appearance of German turbojet-powered Messerschmitt Me 262 near the end of WWII prompted Soviet Union to develop faster fighter aircraft. Since USSR lacked a production-ready turbojet engine, the efforts were directed toward mixed-power aircraft utilizing a conventional piston engine-driven propeller for the majority of propulsion with a small rocket or jet engine for bursts of speed.cite book|author=Shavrov V.B.|year=1994|title=Istoriia konstruktskii samoletov v SSSR, 1938-1950 gg. (3 izd.)|publisher=Mashinostroenie|id=ISBN 5217004770]

The Su-5 (initially I-107) and the conceptually similar Mikoyan-Gurevich I-250 (N) were designed in 1944. The aircraft first flew on 6 April 1945 and underwent limited flight testing. It was subsequently fitted with a laminar flow wing and attained 793 km/h (428 knots, 493 mph) at 4350 m (14,270 ft) with the motorjet functioning.cite book|last=Green|first=W|coauthors=Swanborough, G|year=2001|title=The Great Book of Fighters|edition=|publisher=MBI Publishing|location=|id=ISBN 0760311943] On 15 June 1945, the Klimov VK-107A piston engine was damaged beyond repair in flight. Following acquisition of another VK-107A, flight testing continued until 18 October when the engine reached the end of its service life. No further VK-107As could be procured and the project was canceled.cite web|url=http://www.sukhoi.org/eng/planes/museum/su5/|title=Sukhoi Su-5|work=Sukhoi Company Museum|accessdate=2007-01-14]

The Su-5 was a conventional monoplane of all-metal construction. The VDRK ( _ru. Воздушно-Реактивный Двигатель Компрессорный) motorjet in the rear of the fuselage was powered by a driveshaft from the VK-107 piston engine and could provide an additional 100 km/h (54 knots, 62 mph) of speed for three minutes.

Operators

;USSR
*Soviet Air Force

pecifications (Su-5)

aircraft specifications
plane or copter?=plane
jet or prop?=both

ref=
crew=1
length main=8.51 m
length alt=27 ft 11 in
span main=10.56 m
span alt=34 ft 8 in
height main=3.53 m
height alt=11 ft 7 in
area main=17 m²
area alt=183 ft²
airfoil=
empty weight main=2954 kg
empty weight alt=6,510 lb
loaded weight main=3804 kg
loaded weight alt=8,390 lb
useful load main=
useful load alt=
max takeoff weight main=
max takeoff weight alt=
more general=

engine (jet)=VDRK
type of jet=motorjet
number of jets=1
thrust main=2.9 kN
thrust alt=660 lbf
engine (prop)=Klimov VK-107A
type of prop=liquid-cooled V12 engine
number of props=1
power main=1230 kW
power alt=1,650 hp
max speed main=810 km/h
max speed alt=437 knots, 503 mph
max speed more=projected at 7800 m (25,590 ft)
cruise speed main=
cruise speed alt=
stall speed main=
stall speed alt=
never exceed speed main=
never exceed speed alt=
range main=600 km
range alt=325 nm, 375 mi
ceiling main=12000 m
ceiling alt=39,370 ft
climb rate main=5.7 min to 5000 m
climb rate alt=16,405 ft
loading main=
loading alt=
thrust/weight=
power/mass main=
power/mass alt=
more performance=

armament=
*1x 23 mm (0.91 in) Nudelman-Suranov NS-23 cannon
*2x 12.7 mm (0.50 in) Berezin UB machine guns

avionics=

References

ee also

aircontent
related=
similar aircraft=
*Mikoyan-Gurevich I-250 (N)
sequence=
lists=
see also=