Yakovlev Yak-4

__NOTOC__infobox Aircraft
name =Yak-4 (BB-22)
type =Light bomber
manufacturer =Yakovlev



caption =
designer =Alexander Sergeyevich Yakovlev
first flight =
introduced =1941
retired =1945
status =
primary user =Soviet Air Force
more users =
produced =
number built =90Fact|date=September 2008
unit cost =
variants with their own articles =The Yakovlev Yak-4 (Service names Yak-4, BB-22 (Ближний бомбардировщик, "Blizhnij Bombardirivschik", "short range bomber") was a Soviet bomber aircraft, a development of the Ya-22/Yak-2.

The Yak-4 used more powerful engines than its predecessors. The gunner/bomber position right behind pilot's turret was made non-retractable. It was a fast, good-looking light bomber, but too vulnerable for ground-attack missions. The few built were later used for night missions and high-altitude reconnaissance. The Yak-4 had two seats and two Klimov M-105R V-12 engines. It was first introduced in 1941. 90 were built.

Operators

;USSR
*Soviet Air Force

pecifications (Yak-4)

aircraft specifications

plane or copter?=plane
jet or prop?=prop
crew=two
length main=10.18 m
length alt=33 ft 5 in
span main=14.00 m
span alt=45 ft 11 in
height main= m
height alt= ft
area main=29.4 m²
area alt=316 ft²
empty weight main=4,000 kg
empty weight alt=8,818 lb
loaded weight main=5,845 kg
loaded weight alt=12,886 lb
max takeoff weight main= kg
max takeoff weight alt= lb
engine (prop)=Klimov M-105
type of prop= inlines
number of props=2
thrust main=821 kW
thrust alt=1,100 hp
power main=821 kW
power alt=1,100 hp each
max speed main=574 km/h
max speed alt=358 mph
range main=1,200 km
range alt=748 miles
ceiling main=10,000 m
ceiling alt=32,800 ft
climb rate main=920 m/min
climb rate alt=3,017 ft/min
loading main=199 kg/m²
loading alt=41 lb/ft²
power/mass main=0.28 kW/kg
power/mass alt=0.17 hp/lb
armament=
* 2× 7.62 mm ShKAS machine guns
* 800 kg (1,764 lb) bombs

External links

* [http://www.aviation.ru/Yak/#4 Yak-4 description on aviation.ru]

ee also

aircontent
related=
Yakovlev Yak-2
similar aircraft=
sequence=