Yakovlev Yak-9U
| GENERAL DATA | |||
| Other Designation(s) | Frank
(NATO) |
||
| Type | Fighter |
Crew | 1 |
| Manufacturer(s) | Plant No.153
(Novosibirsk), Plant No.166 (Omsk), Plant No.82 (Moscow) |
||
| Production | 16769 all-versions
(September 1942 – December 1948); 3921 Yak-9U (April 1944
to August 1945), 282 Yak-9UT (February and May 1945), 493 Yak-9V |
||
| First Flight | 28 December, 1943 |
Introduction | 1944 |
| Variants | |||
| Yak-9U | The Yak-9U was originally a Yak-9T
equipped with a Klimov VK-105PF2 engine and benefiting from aerodynamic
advances from the Yak-3. It had a 23 mm VYa cannon (60 rounds) and
two UBS 12.7 mm machine guns (170 rounds). This VYa cannon did not
give satisfaction.
The final Yak-9U was powered by a 1650 hp Klimov VK-107A and armed with a ShVAK cannon with 120 rounds. The structure was also reinforced. It was tested in 1943 and proved to be incomparable. Its speed, 700 km/h at altitude, made it the fastest hunter in the world at the time. |
||
| Yak-9UT | Yak-9U armed with one NS-37 cannon (30 rounds) and two B-20 cannons (120 rounds). The production planes carried instead an NS-23. | ||
| Yak-9UV | Two-seater training version. Its armament was reduced to a B-20 and 100 rounds. It was not produced in series because of the arrival of jets. | ||
| Yak-9V | Two-seater version of the Yak-9M and T, equipped with a Klimov VK-105PF2 engine and a ShVAK cannon with 90 rounds. | ||
| DIMENSIONS | |||
| Length | 8.55 m |
Empty Weight | 2350 kg |
| Wingspan | 9.74 m |
Loaded Weight | 3117 kg |
| Height | 3 m |
Max takeoff weight | ? kg |
| Wing area | 17.15 m² |
Wing Loading | 187 kg/m² |
| ARMAMENT | ||||
| Main Guns | Engine mounted* |
1 × 23 mm VYa cannon |
Ammunition Carried | 1 x 60 |
| Secondary Guns | Nose ** |
2 x 20 mm (0.8 in) B-20S cannon |
Ammunition Carried | 2 x 110 |
| Other Armament | - |
|||
| ARMAMENT (Final) | ||||
| Main Guns | Engine mounted* |
1 × 20 mm (0.8 in) ShVAK cannon |
Ammunition Carried | 1x 120 |
| Secondary Guns | Nose ** |
2 x 12.7 mm (0.50 in) Berezin UBS MG |
Ammunition Carried | 2 x 170 |
| Other Armament | - |
|||
(*) firing through propeller hub, (**) synchronized in the upper nose fuselage
| POWERPLANT | |||
| Engine | 1 × VK-107A |
Type & Displacement | V-12 supercharged liquid-cooled,
35.08 L |
| Horsepower (maximum) | 1500
hp |
Power/Weight Ratio | 481.23 hp / ton * |
| Fuel Capacity | 440 L
|
||
(*) with loaded weight
| mPERFORMANCES | |||
| Maximum Speed | 575 km/h at sea level, 572 km/h
at altitude |
Cruise Speed | 304 km/h |
| Stall Speed (takeoff/landing) * | 140 km/h |
Service Ceiling | 10650 m |
| Rate of Climb | 16.3m/s |
Range | 675 km |
(*) vitesse de décrochage (décollage/atterrissage)
| Sources | |||
| Wikipédia | aviationsmilitaires.net | ||
Drawings |
