il2

I.A.R. 80-A

iar80a

Description

Indicated stall speed in flight configuration: 154..162 km/h
Indicated stall speed in takeoff/landing configuration: 143..151 km/h
Dive speed limit: 750 km/h
Maximum load factor: 12 G
Stall angle of attack in flight configuration: 16,0°
Stall angle of attack in landing configuration: 13,8°

Maximum true air speed at sea level, engine mode - nominal: 433 km/h
Maximum true air speed at sea level, engine mode - emergency: 450 km/h
Maximum true air speed at 4700, engine mode - nominal m: 511 km/h
Maximum true air speed at 3800 m, engine mode - emergency: 514 km/h

Service ceiling: 10500 m
Climb rate at sea level: 14,1 m/s
Climb rate at 3000 m: 13,6 m/s
Climb rate at 6000 m: 9,7 m/s

Maximum performance turn at sea level: 17,8 s, at 300 km/h IAS.

Flight endurance at 3000 m: 1.9 h, at 350 km/h IAS.

Takeoff speed: 150…180 km/h
Glideslope speed: 200…220 km/h
Landing speed: 170…180 km/h
Landing angle: 14.2 °

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 are given for mominal power, turn times are given for emergency power.

Engine:
Model: I.A.R. 14 K. IV. C-32
Maximum power in Emergency mode at sea level: 1050 HP
Maximum power in Emergency mode at 2700 m: 1100 HP
Maximum power in Nominal mode at sea level: 930 HP
Maximum power in Nominal mode at 3200 m: 1000 HP

Engine modes:
Nominal (unlimited time): 2300 RPM, 850 mm Hg
Emergency (up to 3 minutes): 2300 RPM, 935 mm Hg

Oil rated temperature in engine output: 40..110 °C
Oil maximum temperature in engine output: 120 °C

Empty weight: 1980 kg
Minimum weight (no ammo, 10% fuel): 2293 kg
Standard weight: 2650 kg
Maximum takeoff weight: 3030 kg
Fuel load: 324 kg / 450 l
Useful load: 1050 kg

Forward-firing armament:
6 x 7.92mm machine gun “FN Browning 7.92 mod 1938”, 2400 rounds, 1500 rounds per minute, wing-mounted

or (modification):
4 x 7.92mm machine gun “FN Browning 7.92 mod 1938”, 1600 rounds, 1500 rounds per minute, wing-mounted
2 x 13.2mm machine gun “FN Browning 13.2”, 300 rounds, 1080 rounds per minute, wing-mounted
or (modification):

2 x 7.92mm machine gun “FN Browning 7.92 mod 1938”, 1400 rounds, 1500 rounds per minute, wing-mounted
2 x 20mm gun “MG 151/20”, 350 rounds, 700 rounds per minute, wing-mounted

Bombs (modification):
Up to 2 x 55 kg fragmentation bombs “SC 50”
249 kg general purpose bomb “SC 250”

Length: 8.9 m
Wingspan: 10.5 m
Wing surface: 16.1 m²

Combat debut: Summer-Autumn 1941

Operation features:

Basic data and recommended positions of the aircraft controls:

  1. Starting the engine:
    • recommended position of the mixture control lever: 50% auto mixture control
    • recommended position of the cowl flap control handle: close
    • recommended position of the prop pitch control handle: heavy
    • recommended position of the throttle lever: 0%
  2. Recommended mixture control lever positions for various flight modes: 50% (auto mixture control)

  3. Recommended positions of the cowl flap control handle for various flight modes:
    • takeoff: open 100%
    • climb: open 100%
    • cruise flight: open 20% (in winter conditions - close if necessary)
    • combat: open 50%
  4. Approximate fuel consumption at 2000 m altitude:
    • Cruise engine mode: 6.9 l/min
    • Combat engine mode: 7.7 l/min

Modifications

I.A.R.81 series 151-175
Centerline (249 kg SC 250) and underwing bombs (two 55 kg SC 50),
tail struts, sturdier flaps.
Additional mass: 378.7 kg
Ammunition mass: 358.7 kg
Racks mass: 20.0 kg
Estimated speed loss before drop: 32 km/h
Estimated speed loss after drop: 13 km/h

I.A.R.80-B series 181-200
Two 7.92mm MGs replaced by 13.2mm ones,
new headrest, sturdier flaps.
Additional mass: 14.7 kg
Estimated speed loss: 1 km/h

I.A.R.80-M
Armament changed to two 7.92mm MGs and two 20mm MG151/20 guns,
tail struts, new air filter, second oil radiator,
late type headrest, sturdier fuselage and flaps.
Additional mass: 62.2 kg
Estimated speed loss: 9 km/h