About This ContentThe Yak-1b, also know as the Yak-1 Series 127, is the pinnacle of the Yak-1 fighter design that includes all of the incremental improvements introduced in 1942. In addition to increasing armor protection and its enhancing aerodynamic capabilities, its weapons were also upgraded. Designers replaced the two small 7.62 mm ShKAS guns with a single, yet more powerful 12.7 mm UBS machine-gun. To allow for a better rear view, its dorsal spine was lowered and a new teardrop-style canopy was installed. This version of the Yak-1 was still in production as late as mid-1944 when it was finally replaced by more advanced Yak-3. Many Soviet aces flew this plane: Arseniy Vorozheikin, Alexander Koldunov, Aleksey Alelyukhin, Sergey Lugansky and others. The famous French volunteer squadron Normandie Niemen, which served on the Eastern front, also employed these planes to great effect.In addition to Quick Mission Builder and Multiplayer modes, you can fly it in Career mode during Battle of Kuban timeframe.
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Technical detailsIndicated stall speed in flight configuration: 153..169 km/hIndicated stall speed in takeoff/landing configuration: 132..145 km/h Dive speed limit: 720 km/h Maximum load factor: 10.3 G Stall angle of attack in flight configuration: 18 ° Stall angle of attack in landing configuration: 15.6 ° Maximum true air speed at sea level, engine mode - Nominal, 2550 RPM: 530 km/h Maximum true air speed at 2000 m, engine mode - Nominal, 2700 RPM: 567 km/h Maximum true air speed at 4500 m, engine mode - Nominal, 2700 RPM: 600 km/h Service ceiling: 10600 m Climb rate at sea level: 17.0 m/s Climb rate at 3000 m: 15.0 m/s Climb rate at 6000 m: 9.5 m/s Maximum performance turn at sea level: 19.0 s, at 270 km/h IAS. Maximum performance turn at 3000 m: 24.1 s, at 270 km/h IAS. Flight endurance at 3000 m: 2.0 h, at 350 km/h IAS. Takeoff speed: 160..190 km/h Glideslope speed: 195..205 km/h Landing speed: 135..145 km/h Landing angle: 12 ° Note 1: the data provided is for international standard atmosphere (ISA). Note 2: flight performance ranges are given for possible aircraft mass ranges. Note 3: maximum speeds, climb rates and turn times are given for standard aircraft mass. Note 4: climb rates and turn times are given for Nominal (2700 RPM) power. Engine: Model: M-105PF Maximum power in Nominal mode (2550 RPM) at sea level: 1240 HP Maximum power in Nominal mode (2700 RPM) at sea level: 1210 HP Maximum power in Nominal mode (2700 RPM) at 800 m: 1260 HP Maximum power in Nominal mode (2700 RPM) at 2700 m: 1200 HP Engine modes: Nominal (unlimited time): 2550/2700 RPM, 1050 mm Hg Water rated temperature in engine output: 70..85 °C Water maximum temperature in engine output: 100 °C Oil rated temperature in engine output: 90..100 °C Oil maximum temperature in engine output: 115 °C Supercharger gear shift altitude: 2300 m Empty weight: 2322 kg Minimum weight (no ammo, 10% fuel): 2543 kg Standard weight: 2887 kg Maximum takeoff weight: 3117 kg Fuel load: 304 kg / 408 l Useful load: 795 kg Combat debut: April 1943 Operation features
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