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Finland's Flag

Finland's VL Myrsky, Myrsky fighter
Translation: "Storm"

Design

Design of the VL Myrsky first started in the middle of 1939 / 19412.1,2 E. Wegeluis was the designer of the Myrsky.2

There were many initial problems that had to be ironed out before the Myrsky II was produced.1,2

The wing of the Myrsky was made of wood and the fuselage steel tubing.1,2 These were then covered with duraluminum and fabric.1,2

Engine

The Swedes built the Pratt & Whitney Twin Wasp engine.1

Prototype

The Myrsky prototype was first flown on December 23, 1941 / 19422.1,2 Problems were discovered in the design and three more prototypes / pre production aircraft were constructed.1 These underwent structural and other changes.1 The first to fly was in April 1943 and it crashed three weeks later.1 The second did a wheels up landing, but crashed after repairs.1 The third's wings detached during a dive.1

Forty six of the improved Myrsky IIs were ordered.2

Production

  • Prototypes and pre production: 41
  • Myrsky II: 471
  • Total: 511
    • Manufacturer: Valtion Lentokonetehdas (National Air Industry)2

Variants

  • Prototypes:
  • Myrsky II: Production version.1 Stronger undercarriage and redesigned wing.1

Usage

Finland was the only country to use the VL Myrsky.1

The Myrsky II entered service in 1944.2

Continuation War

The Myrsky IIs were used in reconnaissance squadrons of the Ilmavoimat (Finnish Air Force) against the Soviets in the Continuation War.1

Fighting Germany

The Myrsky was used against the Germans in Lapland.1,2 The Myrsky was used as close support against German ground forces.1

Post World War II

The Myrsky was in Finnish service until May 1947 when additional structural failures turned up forcing the Myrsky to be grounded.1

Specifications

  VL Myrsky1
Type Fighter1
Crew 11
Engine (Type) Pratt & Whitney R-1830-SC3G Twin Wasp (SFA built)1
Cylinders Radial 141
Cooling  
HP 1,0651
Propeller blades 31
Dimensions  
Span  
Length  
Height  
Wing area  
Weight  
Empty  
Loaded  
Maximum load  
Performance  
Speed @ sea level  
Speed @ 10,665'  
Speed @ 11,155' /
3,400 m
 
Maximum cruising speed  
Climb to 9,840' /
3,000 m
 
Service ceiling  
Range  
Armament  
Upper cowling  
  VL Myrsky II1, Myrsky II2
Type Fighter2
Crew 12
Engine (Type) SFA-Pratt & Whitney Twin Wasp2
Cylinders Radial 142
Cooling Air2
HP 1,0652
Propeller blades  
Dimensions  
Span 36' 1"1,2
11 m1
Length 27' 4.75"1, 27' 5"2
8.35 m1
Height 9' 10"1,2
3 m1
Wing area  
Weight  
Empty 5,152 lb1
2,337 kg1
Loaded 6,504 lb1,2
2,950 kg1
Maximum load 7,083 lb1
3,213 kg1
Performance  
Speed @ sea level 292 mph1
470 kph1
Speed @ 10,665' 329 mph2
Speed @ 11,155' /
3,400 m
333 mph1
536 kph1
Maximum cruising speed 260 mph1
418 kph1
Climb to 9,840' /
3,000 m
3.5 minutes1
Service ceiling 29,530'1,2
9,000 m1
Range 310 miles1, 311 miles2
500 km1
Armament  
Upper cowling 4: MG2
4: 12.7 mm MG1

Sources:

  1. Aircraft of WWII, Stewart Wilson, 1998
  2. World War II Airplanes Volume 1, Enzo Angelucci, Paolo Matricardi, 1976
20th Century American Military History Crucial Site