il2

Ju 88 A-4

Description

Indicated stall speed in flight configuration: 188..205 km/h
Indicated stall speed in takeoff/landing configuration: 158..185 km/h
Dive speed limit: 670 km/h
Maximum load factor: 8.0 G
Stall angle of attack in flight configuration: 21.0 °
Stall angle of attack in landing configuration: 16.6 °

Maximum true air speed at sea level, engine mode - Climb: 424 km/h
Maximum true air speed at 2000 m, engine mode - Climb: 462 km/h
Maximum true air speed at 5000 m, engine mode - Climb: 486 km/h

Service ceiling: 7500 m
Climb rate at sea level: 7.0 m/s
Climb rate at 3000 m: 5.1 m/s
Climb rate at 6000 m: 3.4 m/s

Maximum performance turn at sea level: 33.0 s, at 250 km/h IAS.
Maximum performance turn at 3000 m: 50.5 s, at 250 km/h IAS.

Flight endurance at 3000 m: 3.8 h, at 300 km/h IAS.

Takeoff speed: 170..210 km/h
Glideslope speed: 210..220 km/h
Landing speed: 150..160 km/h
Landing angle: 9 °

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 Climb power, turn times are given for Take-off power.

Engine:
Model: Jumo-211J
Maximum power in Take-off mode at sea level: 1420 HP
Maximum power in Climb mode at sea level: 1190 HP
Maximum power in Climb mode at 1500 m: 1260 HP
Maximum power in Climb mode at 4900 m: 1180 HP

Engine modes:
Nominal (unlimited time): 2250 RPM, 1.15 ata
Climb power (up to 30 minutes): 2400 RPM, 1.25 ata
Take-off power (up to 1 minute): 2600 RPM, 1.42 ata

Water rated temperature in engine output: 80 °C
Water maximum temperature in engine output: 110 °C
Oil rated temperature in engine output: 100 °C
Oil maximum temperature in engine output: 130 °C

Supercharger gear shift altitude: automatic

Empty weight: 8619 kg
Minimum weight (no ammo, 10% fuel): 9458 kg
Standard weight: 12110 kg
Maximum takeoff weight: 13655 kg
Fuel load: 1277 kg / 1680 l
Useful load: 5036 kg

Defensive armament:
Nose: 7.92mm machine gun “MG 81”, 750 rounds, 1600 rounds per minute
Top: 7.92mm machine gun “MG 81”, 1000 rounds, 1600 rounds per minute
Belly: 2 x 7.92mm machine gun “MG 81”, 950 rounds, 1600 rounds per minute

Bombs:
Up to 44 x 55 kg general purpose bombs “SC 50”
Up to 6 x 249 kg general purpose bombs “SC 250”
Up to 4 x 500 kg general purpose bombs “SC 500”
Up to 2 x 1090 kg general purpose bombs “SC 1000”
1780 kg general purpose bomb “SC 1800”

Length: 14.3 m
Wingspan: 20.02 m
Wing surface: 52.7 m²

Combat debut: June 1941

Operation features:

• Each engine has a two-stage mechanical supercharger with an automatic switch system that switches gears depending altitude and engine revolutions. It can also be manually switched to first gear.
• Engine mixture control is automatic.
• Engine RPM has an automatic governor and it is maintained at the required RPM corresponding to the governor control lever position. The governor automatically controls the propeller pitch to maintain the required RPM.
• Propellers have a feathering system which should be activated in case of engine damage to reduce drag of the propeller in auto-rotation.
• Water and oil radiators shutters are joint with engine cowl outlet shutters and manually operated. Ground personnel may install additional fixed shutters on the intake of the oil radiators in cold weather to prevent freezing of the oil
• The aircraft has a fuel gauge which shows remaining fuel in fuel tanks depending on switch position. In game the fuel indicator switch changes by pressing (RShift+I).
• The aircraft has trimmers for all flight-controls: pitch, roll and yaw.
• The aircraft has fence-type airbrakes which are located under the wing and used to slow the descent during steep dive bombing.
• The aircraft has hydraulic-actuated landing flaps with three fixed positions: retracted, takeoff (25°) and landing (50°). Flap indicator lights are located on left panel.
• The aircraft has an automatically controlled horizontal stabilizer. An automatic control system adjusts the stabilizer angle depending on the extended angle of the landing flaps. The stabilizer control lamps are located near the flaps indicator lights.
• The aircraft is also equipped with differential ailerons which are lowered in synch with the flaps.
• Lowering the landing gear takes a long time, for this reason it is necessary to extend the landing gear well before final landing approach.
• The aircraft tailwheel rotates freely and does not have a lock. For this reason, it is necessary to confidently and accurately operate the rudder pedals during the takeoff and landing.
• The aircraft has independent left and right hydraulic wheel brake controls. To apply either brake push the upper part of the rudder pedal.
• The aircraft has dedicated fuel gauges for left and right fuel tank groups and there is a switch between the internal and external fuel tank group indicator. In game the fuel indicator switch changes by pressing (RShift+I). Also, the airplane has low fuel warning lights (180 liters) for the internal tanks.
• The aircraft is equipped with an automatic bomb salvo controller, it allows you to switch between the bomb racks to be released (internal or external) and to switch between different salvo quantities. There is also a controller for a drop delay between each bomb in the salvo.
• The aircraft is equipped with dive system. When the dive system is engaged, the plane enters a dive when the air brakes are extended or when the dive button (LCtrl + D by default) is pressed. The plane will recover from the dive either by pressing the bomb drop button or by pressing the dive button (LCtrl + D by default). The dive system will return to the neutral position of the elevator trim, while the full range of trimmer travel from the pilot’s input is preserved. Therefore the pilot input and dive system input of the trimmers are independent, and when the dive system is in operation, there is no indication of a trimmer position change in the technochat. Also, the elevator trim is automatically shifted when the stabilizer is moved to the landing position (when flaps are released to the landing position). This also shifts the trim back to the neutral position.

Basic data and recommended positions of the aircraft controls:

1. Starting the engine:
   • recommended position of the mixture control lever: 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: 10%

2. Recommended mixture control lever positions for various flight modes: auto mixture control

3. Recommended positions of the outlet 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% (in winter conditions - close if necessary)
4. Approximate fuel consumption at 2000 m altitude:
   • Cruise engine mode: 12.0 l/min
   • Combat engine mode: 15.9 l/min

Modifications

SC 1800 heavy bomb
1780 kg General Purpose Bomb SC 1800
Additional mass: 1780 kg
Ammunition mass: 1780 kg
Estimated speed loss before drop: 27 km/h
Estimated speed loss after drop: 0 km/h

44 x SC 50 bombs
44 x 55 kg General Purpose Bombs SC 50
Additional mass: 2640 kg
Ammunition mass: 2420 kg
Racks mass: 220 kg
Estimated speed loss before drop: 84 km/h
Estimated speed loss after drop: 47 km/h

6 x SC 250 bombs
6 x 249 kg General Purpose Bomb SC 250 (+2 on the underwing holders)
Additional mass: 1544 kg
Ammunition mass: 1494 kg
Racks mass: 50 kg
Estimated speed loss before drop: 42 km/h
Estimated speed loss after drop: 5 km/h

2 x SC 1000 heavy bombs
2 x 1090 kg General Purpose Bomb SC 1000
Additional mass: 2180 kg
Ammunition mass: 2180 kg
Estimated speed loss before drop: 26 km/h
Estimated speed loss after drop: 0 km/h

4 x SC 500 bombs
4 x 500 kg General Purpose Bomb SC 500
Additional mass: 2000 kg
Ammunition mass: 2000 kg
Estimated speed loss before drop: 35 km/h
Estimated speed loss after drop: 0 km/h