il2

La-5FN ser.2

la5fns2

Description

Indicated stall speed in flight configuration: 168..185 km/h
Indicated stall speed in takeoff/landing configuration: 147..159 km/h
Dive speed limit: 720 km/h
Maximum load factor: 10 G
Stall angle of attack in flight configuration: 22.2 °
Stall angle of attack in landing configuration: 15.0 °

Maximum true air speed at sea level, engine mode - Nominal: 552 km/h
Maximum true air speed at sea level, engine mode - Boosted: 583 km/h
Maximum true air speed at 2500 m, engine mode - Nominal: 605 km/h
Maximum true air speed at 6000 m, engine mode - Nominal: 646 km/h

Service ceiling: 10500 m
Climb rate at sea level: 20 m/s
Climb rate at 3000 m: 16.7 m/s
Climb rate at 6000 m: 12.5 m/s

Maximum performance turn at sea level: 21.0 s, at 320 km/h IAS.
Maximum performance turn at 3000 m: 28.0 s, at 340 km/h IAS.

Flight endurance at 3000 m: 2.0 h, at 350 km/h IAS.

Takeoff speed: 175..195 km/h
Glideslope speed: 200..210 km/h
Landing speed: 150..160 km/h
Landing angle: 13 °

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 Boosted power.

Engine:
Model: M-82FN
Maximum power in Boosted mode at sea level: 1850 HP
Maximum power in Nominal mode at sea level: 1560 HP
Maximum power in Nominal mode at 1550 m: 1630 HP
Maximum power in Nominal mode at 4800 m: 1460 HP

Engine modes:
Nominal (unlimited time): 2400 RPM, 1000 mm Hg
Boosted power (up to 10 minutes): 2500 RPM, 1180 mm Hg

Oil rated temperature in engine intake: 65..75 °C
Oil maximum temperature in engine intake: 85 °C
Cylinder head rated temperature: 180..215 °C
Cylinder head maximum temperature: 250 °C

Supercharger gear shift altitude: 3500 m

Empty weight: 2655 kg
Minimum weight (no ammo, 10% fuel): 2929 kg
Standard weight: 3305 kg
Maximum takeoff weight: 3544 kg
Fuel load: 334 kg / 464 l
Useful load: 896 kg

Forward-firing armament:
2 x 20mm gun “SsVAK”, 170 rounds, 800 rounds per minute, synchronized

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

Length: 8.672 m
Wingspan: 9.8 m
Wing surface: 17.51 m²

Combat debut: June 1943

Operation features:

Basic data and recommended positions of the aircraft controls:

  1. Starting the engine:
    • recommended position of the mixture control lever: no mixture control
    • recommended position of the cowl flap control handle: open
    • recommended position of the radiator/cowl flap control handle: close
    • recommended position of the prop pitch control handle: 100%
    • recommended position of the throttle lever: 0%
  2. Recommended mixture control lever positions for various flight modes: no mixture control

3.1 Recommended positions of cowl flaps for various flight modes:
- takeoff: open
- climb: open
- cruise flight: open (in winter conditions - close 50% if necessary)
- combat: open

3.2 Recommended positions of cowl flaps for various flight modes:
- takeoff: open 100%
- climb: open 100%
- cruise flight: open 20% (in winter conditions - close if necessary)
- combat: open 60%

3.3 Recommended positions of the oil radiator control handle for various flight modes:
- takeoff: open 50%
- climb: open 100%
- cruise flight: open 20% (in winter conditions - close if necessary)
- combat: open 50%

  1. Approximate fuel consumption at 2000 m altitude:
    • Cruise engine mode: 3.6 l/min
    • Combat engine mode: 12.3 l/min

Modifications

2 x FAB-50sv bombs
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

Landing light
Landing light for night flights
Additional mass: 2 kg
Estimated speed loss: 0 km/h

Mirror
Rear view mirror
Additional mass: 1 kg
Estimated speed loss: 0 km/h

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

2 x FAB-100M bombs
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

Special Guns Ammo Load
Loadout variants: armour piercing (AP) or high-explosive (HE) rounds only