Yak-1 Series 69

The **Yak-1 Series 69** is a Russian fighter available as part of *Battle of Stalingrad*.

## Specifications

```
Indicated stall speed in flight configuration: 155..171 km/h
Indicated stall speed in takeoff/landing configuration: 133..146 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: 514 km/h
Maximum true air speed at 2000 m, engine mode - Nominal, 2700 RPM: 549 km/h
Maximum true air speed at 4000 m, engine mode - Nominal, 2700 RPM: 582 km/h

Service ceiling: 10200 m
Climb rate at sea level: 16.9 m/s
Climb rate at 3000 m: 15.0 m/s
Climb rate at 6000 m: 9.4 m/s

Maximum performance turn at sea level: 19.2 s, at 270 km/h IAS.
Maximum performance turn at 3000 m: 24.6 s, at 270 km/h IAS.

Flight endurance at 3000 m: 1.9 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: 2365 kg
Minimum weight (no ammo, 10% fuel): 2583 kg
Standard weight: 2932 kg
Maximum takeoff weight: 3170 kg
Fuel load: 304 kg / 408 l
Useful load: 805 kg

Forward-firing armament:
20mm gun "SsVAK", 120 rounds, 800 rounds per minute, nose-mounted
2 x 7.62mm machine gun "ShKAS", 750 rounds, 1800 rounds per minute, synchronized

Bombs:
2 x 50 kg general purpose bombs "FAB-50sv"
2 x 104 kg general purpose bombs "FAB-100M"

Rockets:
Up to 6 x 7 kg rockets "ROS-82", HE payload mass 2.52 kg

Length: 8.5 m
Wingspan: 10 m
Wing surface: 17.15 m^2

Combat debut: May 1942

```

### Additional Configurations

```
2 x 50 kg General Purpose Bombs FAB-50sv
Additional mass: 120 kg
Ammunition mass: 100 kg
Racks mass: 20 kg
Estimated speed loss before drop: 20 km/h
Estimated speed loss after drop: 12 km/h

2 x 104 kg General Purpose Bombs FAB-100M
Additional mass: 228 kg
Ammunition mass: 208 kg
Racks mass: 20 kg
Estimated speed loss before drop: 27 km/h
Estimated speed loss after drop: 12 km/h

2 x 82mm High Explosive unguided rockets ROS-82
Additional mass: 60 kg
Ammunition mass: 42 kg
Racks mass: 18 kg
Estimated speed loss before launch: 8 km/h
Estimated speed loss after launch: 6 km/h

6 x 82mm High Explosive unguided rockets ROS-82
Additional mass: 60 kg
Ammunition mass: 42 kg
Racks mass: 18 kg
Estimated speed loss before launch: 23 km/h
Estimated speed loss after launch: 17 km/h

RPK-10 fixed loop radio compass for navigation with radio beacons
Additional mass: 10 kg
Estimated speed loss: 0 km/h

```