VFW-Fokker VAK 191 B
| VFW-Fokker VAK 191 B | |
|---|---|
 The VAK 191 B in the Deutsches Museum |
|
| Type: | VTOL - supersonic - Experimental Aircraft |
| Design country: | |
| Manufacturer: |
VFW and VFW-Fokker |
| First flight: |
September 10, 1971 |
| Commissioning: |
Development canceled in 1972 |
| Production time: |
no series production |
| Number of pieces: |
3 prototypes |
The VAK 191 B was a jet-powered German vertical take -off experimental aircraft . It was supposed to replace the light ground attack aircraft Fiat G.91 in Germany .
history
The NATO Basic Military Requirements (NBMR) 3b served as the basis for the development of the VAK (vertical take off reconnaissance and combat aircraft). In 1961, the requirements were specified by the Federal Ministry of Defense (BMVg). A fast-flying and low-altitude combat aircraft capable of using nuclear weapons was required. It was supposed to be a multinational project between Italy , Great Britain and Germany . However, the UK decided very early on to develop the Hawker P.1127 on its own and withdrew from the project.
At the end of 1963 the Focke-Wulf FW1262 (VAK 191B) was selected as the winner. The competitors were
After the merger of Focke-Wulf and Weser-Flugzeugbau to VFW and of VFW and Fokker to VFW-Fokker , the aircraft was named VFW-Fokker VAK 191B .
In 1967 Italy decided to also leave the project.
In 1972 the project, which had previously cost 250 million euros, was abandoned by Germany and the Panavia Tornado was co-developed as a replacement.
Whereabouts
The VAK 191 B served as a test vehicle for the Panavia Tornado .
The prototype V1 is exhibited in the branch of the Deutsches Museum in the Flugwerft Schleißheim .
The prototype V2 and the suspension frame SG 1262 are exhibited in the Defense Technical Study Collection of the Bundeswehr in Koblenz.
The prototype V3 is on the site of the former VFW-Fokker (now Airbus) in Bremen.
technology
The engines used were two Rolls-Royce RB.162-81 lift engines and a Rolls-Royce / MTU RB 193-12 lift / thrust engine. The lift-thrust engine was located in the middle of the aircraft and, like the Harrier, was equipped with four swivel nozzles (see photo). The lift engines were installed in front of and behind the main engine.
Three prototypes and a hover frame (SG 1262) were built to test the flight control.
First flight V1: September 10, 1971
First flight V2: October 2nd, 1971
First flight of the SG 1262 suspension frame: 1966
Last flight on September 4, 1975.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1 |
| length | 14.72 m |
| span | 6.16 m |
| height | 4.30 m |
| Wing area | 12.5 m² |
| Wing loading | 680 kg / m² |
| Empty mass | 5562 kg |
| Payload | 2945 kg |
| fuel | 2100 kg |
| Vertical takeoff mass | 8507 kg |
| Cruising speed | 740 km / h |
| Top speed | 1100 km / h |
| Rate of climb | 35 m / s at sea level |
| Service ceiling (target) | 15,000 m at 950 km / h |
| Radius of action | 400 km |
| Engines | a Rolls-Royce-MTU RB.193 -12 with two cold and two hot nozzles (can be swiveled by 100 degrees) two Rolls-Royce RB.162 -81 F08 |
photos
Prototype V1 of the VAK 191 B in the Deutsches Museum from above
The swivel nozzles of the RB 193-12
Prototype V2 in Koblenz.
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See also
literature
- Ludwig Obermeier: Pilot Report: VAK 191B . In: Flug Revue April 1975, pp. 18-22
- Roy Braybrook: Broken Neck to VFW-Fokker ... but what Chance for the VAK 191B? . In: AIR Enthusiast April 1972, pp. 189–190, 212
- Rolf Riccius: Flight testing VAK 191B (aerospace technology) . In: Flug Revue February 1972, pp. 23-25
- Günter Molter: The next generation . In: Flug Revue November 1965, pp. 16-17, 67
Web links
- German whiz kid - more details and pictures (PDF file in English) (4 kB)
- French site about VTOL projects
- DGLR lecture, Hamburg, June 22, 2007 (PDF file; 1.8 MB)
Individual evidence
- ↑ VFW-Fokker VAK 191 B Deutsches Museum - Flugwerft Schleißheim (accessed: December 9, 2008)
- ^ Obermeier: Flug Revue April 1975, p. 20
- ↑ Otto E. Pabst: Kurzstarter und high-flyer , Bernard & Graefe Verlag, 1984, p. 242