Yakovlev Yak-9UT
FIREPOWER
8
MANEUVERABILITY
7
CLIMB RATE
6
DURABILITY
6
SPEED
8
GROUND ATTACK
3

Crew
1
Primary Guns
2 x Berezin B-20S 20 mm synchronised cannons with 120 rpg in cowl.
Secondary Guns
1 x N-37 37mm cannon with 30 rpg in propeller hub
Defensive Guns
Ordnance
2 x 110 lb (50 kg) or 2 x 220 lb (100 kg) bombs under wings.
Engine(s)
1 x 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
359 mph (578 km/h) at sea level, 417 mph (671 kph) at 16,100 ft (4900 m).
Climb Rate
3,156 ft.per minute (962 m/min), 5.2 min to 16,400 ft (5000 m).
Service Ceiling
35,100 ft (10700 m).
Range
435 miles (690 km).
Wingspan
32 ft 9.7 in (9.74 m).
Length
27 ft 9.9 in (8.65 m).
Height
10 ft 7.2 in (3.23 m).
Loaded Weight
6,985 lbs (3168 kg).
Wing Area
185.7 sq ft (17.15 sq m).
Wing Loading
37.6 lbs/sq ft (183.1 kg/sq m).

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.

Strengths

  1. Firepower — The Yak-9UT's 37mm and twin 20mm cannons give it an incredible salvo weight of 13.2 lbs. per second.
  2. Speed — A top speed of over 405 mph gives the Yak-9UT performance on par with the best planes of each country.

Weakness

  1. Range — A thirsty engine and small fuel capacity limit the Yak's range.
  2. Ammo Load — The fast firing 37mm cannon goes through its supply of 30 rounds in a surprising hurry.

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