Yakovlev Yak-9UT

From The Air Combat Wiki

Contents 1 Fighter Ace Screenshots 2 Fighter Ace Ratings 3 Fighter Ace Performance 4 Historical Statistics 5 Strengths 6 Weaknesses 7 History 8 Sources 9 See Also

Fighter Ace Screenshots

Fighter Ace museum screenshot by Doug@HQ	Fighter Ace museum screenshot by Doug@HQ	Fighter Ace museum screenshot by Doug@HQ	Fighter Ace museum screenshot by Doug@HQ
Fighter Ace museum screenshot by Doug@HQ	Fighter Ace museum screenshot by Doug@HQ	Fighter Ace museum screenshot by Doug@HQ

Fighter Ace Ratings

Durability: 4

Speed: 7

Maneuverability: 6

Firepower: 8

Climb Rate: 8

Ground Attack: 5

Fighter Ace Performance

Top Speeds						Climb Rates
	Sea Level	4921' 1500m	9843' 3000m	19685' 6000m	Best Speed	Best IAS	to 1000m	to 3000m	to 6000m
mph	359	380	394	416	417@ 16076'	183 mph	1:04	2:54	5:44
kph	578	612	634	669	671@ 4900m	295 kph

Historical Statistics

Service Date: March 1945

Primary Guns: 2x B-20S 20 mm cannons with 120 rpg in cowl

Secondary Guns: 1x N-37 37mm cannon with 30 rpg in propeller hub

Ordnance: 2x 110 lb (50 kg) or 2x 220 lb (100 kg) bombs

Engine(s): 1x Klimov VK-107A in-line rated for 1,620 hp at sea level

Int Fuel Capacity: 772 lbs (350 kg)

Ext Fuel Capacity: none

Maximum Speeds: 417 mph (671 kph) at 16,400 ft (5,000 m)

Ceiling: 35,090 ft (10,700 m)

Loaded Weight: 6,985 lbs (3,168 kg)

Wing Area: 185.7 sq ft (17.3 sq m)

Wing Loading: 37.6 lbs/sq ft (183.1 kg/sq m)

Strengths

Firepower: The Yak-9UT's 37mm and twin 20mm cannons give it an incredible salvo weight of 13.2 lbs. per second.

Speed: A top speed of over 400 mph gives the Yak-9UT performance on par with the best planes of each country.

Weaknesses

Durability: Small and light, the Yak was incapable of absorbing much combat damage.

Range: A thirsty engine and small fuel capacity limits the Yak's range.

Ammo Load: The fast firing 37mm cannon goes through its supply of 30 rounds in a surprising hurry.

History

A further development of the Yak-9U, the Yak-9UT was designed to take advantage of the versatility of the airframe and its ability to mount a large gun between the engine cylinders. While not designed for field modification, a 23mm, 37mm, or 45mm gun could be easily substituted on the production line.

The hardest hitting of these variants was the one that used the new N-37 gun (the 45mm variant required removal of the two 20mm cannon, thus reducing the overall salvo weight). The N-37 was a smaller and lighter version of the NS-37 used in the Yak-9T. It was equipped with a highly effective muzzle break that eliminated up to 85% of recoil forces thereby eliminating the worst problem associated with large caliber gun installations.

Introduced in March 1945, the Yak-9UT saw limited duty in combat trials before the German surrender. But in that short time, the big-gunned Yak made an impressive showing. One unit had 19 encounters and shot down 27 FW-190A-8s and a Bf-109G-6 for the loss of only 2 of their own number.

Sources

Stepaniets, A.; 'Yak' Fighters of WWII Period; Mashinostroenie Publishing, Moscow; 1992.

Stapfer, Hans-Heiri; Yak Fighters In Action; Squadron/Signal Publications, Carrollton, TX; 1986.

Gordon, Yefim and Khazanov, Dmitri; Soviet Combat Aircraft of the Second World War Volume One: Single-Engine Fighters; Midland Publishing Limited, Leicester, England; 1998.

See Also

Fighter Ace Planes Inventory

Aircraft Manufacturers During World War II