Malmö Flygindustri MFI-9
| Malmö Flygindustri MFI-9 | |
|---|---|
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| Type: |
Trainer aircraft and light ground attack aircraft |
| Design country: | |
| Manufacturer: | |
| First flight: |
October 10, 1958 |
| Commissioning: |
1962 |
The Malmö Flygindustri MFI-9 is a two-seat light aircraft produced by the Swedish aircraft manufacturer Malmö Flygindustri . A further developed variant was produced by Bölkow from 1962 under the name Bo 208 "Junior".
history
The stripped all-metal shoulder wing with a controllable nose wheel goes back to a development by the Swedish aircraft engineer Björn Andreasson . He designed the Malmö Flygindustri BA-7 alongside his main job at Convair in San Diego (USA). The first flight was on October 10, 1958 . After returning to Sweden, he took over the management of Malmö Flygindustri. This company built an improved version of the BA-7 under the designation MFI-9 Junior, the first flight took place on May 17, 1961. The first production aircraft flew on August 9, 1962.
The aircraft is suitable for aerobatics and, with its seats next to each other and the large canopy that can be opened to the rear, offers a very good view on all sides. Thanks to its good-natured flight characteristics, it is ideal for training. The aircraft is also suitable for towing gliders up to a total weight of 340 kg.
Under the designation MFI-9B, the aircraft was also manufactured for military and civil training purposes. Five aircraft of this type were used in the Biafra War (1967-1970) in the Biafra Air Force and were armed with six unguided SNEB missiles each for this purpose . The Swedish mercenary and experienced fighter pilot Carl Gustaf von Rosen was responsible for the operation . During the missions of the " Biafra Babies " called small squadrons, several MiG-17 and Il-28 jet planes were destroyed on the ground.
A total of 75 MFI-9s were manufactured in Sweden and the machine was later developed into the MFI-15 and MFI-17, of which over 300 were built by 1989.
variants
In addition to the civil version, Malmö Flygindustri in Sweden built the MFI-9B as a trainer. Of this type a total of 43 copies were built, five of which were sent to the Biafra Air Force. In addition, two prototypes of a military trainer were produced for the Swedish Air Force , which could carry rockets and machine guns at suspension points under the wings.
Production at Bölkow
On July 3, 1961, Bölkow GmbH acquired the license (worldwide, except for Brazil and the Scandinavian countries) to build the MFI-9 Junior after Bölkow saw it at the Aero Salon in Paris in 1961. Its designers under the direction of Hermann Mylius modified the MFI-9. A straight instead of a bent nose landing gear, a new rudder and a modified cabin were installed. For this purpose, Malmö delivered the prototype of the MFI-9 to Germany in January 1962, which was converted accordingly and made its first flight on March 30, 1962 with Klaus Boysen on board. Five weeks later, the nose landing gear broke off during a landing, which damaged the prototype so much that it was scrapped. The nose landing gear was still a problem with the series machines during rough landings. At the end of April 1962 two Bo 208A were exhibited and flown at the ILA in Hanover, one of the machines crashing on May 6, 1962. The type certificate was issued in November 1962 and series production began. The first series machine of the Bo 208A was delivered in February 1963. In April 1963, the Bo 208B version with a wing span increased by 0.6 m was approved as a glider tug. In the following version, Bo 208C, the cabin and the luggage compartment were enlarged, the seats moved, the instrument panel improved, the inner wing modified for a lower landing speed and, above all, the nose wheel reinforced. In the 208C version, tanks enlarged to 100 liters were also installed. By mid-1966, more than 100 Bölkow 208 Junior were produced in Laupheim . The moderate price at the time (28,000 DM in 1962, almost 37,000 DM ready to fly in 1968) led to widespread use. In 1969 production in Laupheim and Ottobrunn was stopped after 210 units had been built (64 A / B, 126 C and 20 C-1). The Bölkow 209 Monsun became the successor to Bölkow .
Military users
- 5 units were used by the Biafra Air Force during the Biafra War
- 10 MFI-9B Mil-Trainer for the Swedish Air Force
Technical specifications
| Parameter | Data Bölkow 208C |
|---|---|
| Type | All-metal shoulder decker |
| length | 5.79 m |
| span | 8.02 m |
| height | 1.98 m |
| Empty mass | 380 kg |
| Max. Takeoff mass | 630 kg |
| Engines | an air-cooled 4-cylinder boxer Rolls-Royce / Continental O-200-A with 73.4 kW |
| Top speed | 230 km / h (sea level) |
| Service ceiling | 4300 m |
| Range | 1000 km |
Armament
Two external load stations for:
- 2 × Abel launch containers for 7 M75 rockets (unguided rocket in caliber 75 mm)
- 2 × TBA 68-7 launch container for 7 SNEB rockets (unguided rocket in caliber 68 mm)
- 2 × containers for two 7.62 mm machine guns each
See also
literature
- Kenneth Munson: Private Aircraft, 1946 to Date . Orell Füssli, Zurich 1967.
- Kenneth Munson: Fighter planes, fighters and training machines since 1960 . Orell Füssli, Zurich 1972, ISBN 3-280-00902-2 .
Web links
Individual evidence
- ↑ Swedish Revenge . In: Der Spiegel . No. 23 , 1969, p. 106 ( online - 4 October 2008 ).
- ↑ FliegerRevue June 2009, pp. 58–61, Bölkow inherits Klemm