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Spitfire Mk.VB

spitfiremkvb

Description

Indicated stall speed in flight configuration: 137..144 km/h
Indicated stall speed in takeoff/landing configuration: 129..135 km/h

Dive speed limit: 725 km/h
Maximum load factor: 12.5 G
Stall angle of attack in flight configuration: 18.8 °
Stall angle of attack in landing configuration: 16.0 °

Merlin 46 engine:

Maximum true air speed at sea level, 3000 RPM, boost +9: 457 km/h
Maximum true air speed at sea level, 3000 RPM, boost +16: 515 km/h
Maximum true air speed at 7400 m, 3000 RPM, boost +9: 597 km/h
Maximum true air speed at 5000 m, 3000 RPM, boost +16: 604 km/h

Service ceiling: 12000 m
Climb rate at sea level: 12.9 m/s
Climb rate at 3000 m: 13.1 m/s
Climb rate at 6000 m: 12.0 m/s

Maximum performance turn at sea level: 25 s, at 270 km/h IAS.
Maximum performance turn at 3000 m: 30 s, at 260 km/h IAS.

Merlin 45 engine:

Maximum true air speed at sea level, 3000 RPM, boost +9: 480 km/h
Maximum true air speed at sea level, 3000 RPM, boost +16: 535 km/h
Maximum true air speed at 6000 m, 3000 RPM, boost +9: 590 km/h
Maximum true air speed at 3500 m, 3000 RPM, boost +16: 596 km/h

Service ceiling: 11200 m
Climb rate at sea level: 14.5 m/s
Climb rate at 3000 m: 14.7 m/s
Climb rate at 6000 m: 11.4 m/s

Maximum performance turn at sea level: 22 s, at 270 km/h IAS.
Maximum performance turn at 3000 m: 28.2 s, at 260 km/h IAS.

Flight endurance at 3000 m: 1 h 45 m, at 350 km/h IAS.

Takeoff speed: 160..170 km/h
Glideslope speed: 145..160 km/h
Landing speed: 130..135 km/h
Landing angle: 12.5 °

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 2850 RPM and boost +9, turn times are given for 3000 RPM and boost +9.

Engine:
Model: Merlin 46
Maximum power in Take-off mode (3000 RPM, boost +12) at sea level: 1100 HP
Maximum power in Emergency Max All Out mode (3000 RPM, boost +16) at 14000 feet: 1400 HP
Maximum power in International power mode (2850 RPM, boost +9) at 19000 feet: 1115 HP

Model: Merlin 45
Maximum power in Take-off mode (3000 RPM, boost +12) at sea level: 1185 HP
Maximum power in Emergency Max All Out mode (3000 RPM, boost +16) at 9000 feet: 1455 HP
Maximum power in International power mode (2850 RPM, boost +9) at 14200 feet: 1170 HP

Engine modes:
Max Cruising power (unlimited time): 2650 RPM, boost +7
International power (up to 30 minutes): 2850 RPM, boost +9
Emergency Max All Out power (up to 3 minutes): 3000 RPM, boost +16

Water rated temperature in engine output: 105..115 °C
Water maximum temperature in engine output: 125 °C
Oil rated temperature in engine intake: 70..85 °C
Oil maximum temperature in engine intake: 105 °C

Supercharger gear shift altitude: single gear

Empty weight: 2415 kg
Minimum weight (no ammo, 10% fuel): 2732 kg
Standard weight: 2979 kg
Fuel load: 274 kg / 386 l / 85 gallons
Useful load: 564 kg

Forward-firing armament:
2 x 20mm guns “Hispano Mk.II”, 60 rounds per gun, 650 rounds per minute, wing-mounted
4 x 7.7mm machine gun “Browning .303”, 350 rounds per gun, 1150 rounds per minute, wing-mounted

Length: 9.2 m
Wingspan: 11.21 m
Wing surface: 22.48 m²

Combat debut: Winter 1941

Operation features:

Basic data and recommended positions of the aircraft controls:

  1. Starting the engine:
    • recommended position of the mixture control lever: forward (auto mixture control)
    • recommended position of the water radiator control handle: open 60%
    • recommended position of the prop pitch control handle: light
    • recommended position of the throttle lever: 10%
  2. Recommended mixture control lever positions for various flight modes: forward (auto mixture control)

  3. Recommended positions of the radiator control handle for various flight modes:
    • takeoff: open 60%
    • climb: open 100%
    • cruise flight: open 60% (in winter conditions - close if necessary)
    • combat: open 60%
  4. Approximate fuel consumption at 2000 m altitude:
    • Cruise engine mode: 6.2 l/min
    • Combat engine mode: 7.7 l/min

Modifications

Merlin 45 engine
Merlin 45 engine.
Additional mass: 0 kg
Estimated speed loss: 0 km/h

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