Sweden's FFVS J 22, fighter
Design
Even though Sweden was neutral, it had to defend itself as there was fighting all around it.1 Unable to bring in American fighters Sweden decided to design and produce them on their own.1 The government owned Flygforvaltningens Flygverkstad (Air board workshop) or FFVS was setup at Ulvsunda.1 The FFVS J 22 was a result of this need.1
The design work on the F.F.V.S. J 22 started on January 1, 1941.2
The J 22 was made of a steel frame and wood construction.1,2
Engine
The engine was an unlicensed copy of the Pratt & Whitney R-1830-SC-3-G Twin Wasp.1 Later a license was purchased.1
Prototype
The J 22 prototype flew for the first time on September 21, 1942 / September 19422.1
Production
An order, straight from the drawing board, for 60 was placed in 1941.1,2 Production went until April 1946.1
- Prototypes: 21
- F.F.V.S. J 22A and F.F.V.S. J22 B: 1981,2
- Total: 2001
- Manufacturer: F.F.V.S.2
Variants
- F.F.V.S. J 22A: First flew in September 1943.2
- F.F.V.S. J 22B:
Usage
Deliveries of the J 22 started in November 1943.1,2 The J 22 eventually equipped seven wings.1 They remained in service until 1952 when they were replaced by the de Havilland Vampire jet fighter.1
Specifications
| FFVS J 221 | FFVS J 22A1 | FFVS J 22B1 | |
|---|---|---|---|
| Type | Fighter1,2 | ||
| Crew | 11,2 | ||
| Engine (Type) | SFA STWC3-G1 Pratt & Whitney Twin Wasp2 |
||
| Cylinders | Radial 141,2 | ||
| Cooling | Air2 | ||
| HP | 1,0651,2 | ||
| Propeller blades | 31 | ||
| Dimensions | |||
| Span | 32' 9"2, 32' 9.5"1 10 m1 |
||
| Length | 25' 7"1,2 7.8 m1 |
||
| Height | 9' 2"1,2 2.79 m1 |
||
| Wing area | |||
| Weight | |||
| Empty | 4,453 lb1 2,020 kg1 |
||
| Loaded | 6,300 lb2 | 6,250 lb1 2,835 kg1 |
|
| Performance | |||
| Speed @ 11,485' / 3,500 m |
358 mph1 576 kph1 |
358 mph1 576 kph1 |
|
| Speed @ 11,500' | 358 mph2 | ||
| Cruising speed | 241 mph1 388 kph1 |
241 mph1 388 kph1 |
|
| Climb | |||
| Service ceiling | 30,000'2 | 30,000'1 9,144 m1 |
30,000'1 9,144 m1 |
| Range | 780 miles2 | 780 miles1 1,255 km1 |
780 miles1 1,255 km1 |
| Armament | 4: MG2 | ||
| Wings | 2: 7.9 mm MG1 2: 13.2 mm MG1 |
4: 13.2 mm MG1 |
Sources:
- Aircraft of WWII, Stewart Wilson, 1998
- World War II Airplanes Volume 1, Enzo Angelucci, Paolo Matricardi, 1976
