Husqvarna 500 (racing motorcycle)
 Husqvarna 500 racing machine |
|
| Manufacturer | Husqvarna Motorcycles |
| Production period | 1930 to 1935 |
| class | Racing motorcycle |
| Motor data | |
| Air-cooled 50 degree V two cylinder engine, two valves per cylinder, ohv , dry sump lubrication | |
| Displacement (cm³) | 498 |
| Power (kW / PS ) | 32.4 / 44 at 6,800 rpm |
| Top speed ( km / h) | 190 |
| transmission | 4 gear |
| drive | Chain drive |
| Wheelbase (mm) | 1430 |
| Empty weight (kg) | 127 |
The Husqvarna 500 was a racing motorcycle from the Swedish motorcycle manufacturer Husqvarna that was used in races from 1930 to 1935.
History and technology
The motorsport development goes back to Folke Mannerstedt , who started out as a designer at Husqvarna in 1928. As early as 1929 experimentation was carried out with two racing models and in 1930 the 500 cc two-cylinder V-engine with hairpin valve springs made its debut at the Swedish Grand Prix in Saxtorp . The Isle of Man TT in 1931 was unsuccessful for Husqvarna, both machines that had started failed. In 1932, completely newly developed engines were created. The “extremely interesting racing machines” at the time had electron engine housings , two 25 mm Amal carburettors and unusually long exhaust pipes that were precisely matched to one another in length. The power was transferred to the rear wheel by a Sturmey-Archer four-speed gearbox and a chain. The high-revving and powerful motor was built into a closed rigid frame with a trapezoidal fork ; Front and rear wheels had 180mm tapered brake drums.
Ragnar Sunnqvist won the Swedish Grand Prix in 1932 with a Husqvarna 500 , Gunnar Kalén came second; the following year Gunnar Kalén won, in 1934 Sunnqvist won again. Still, 1934 was an ominous year for Husqvarna. Both drivers retired from the Isle of Man TT and factory driver Gunnar Kalén was killed in an accident at the German Grand Prix . In 1935, Ragnar Sunnqvist won the Swedish Grand Prix again on the Avus against the strong BMW and Stanley Woods . After almost all racing machines were destroyed in a fire, Husqavna ceased racing.
Very few copies have survived in Sweden. A 1935 copy is in the Sammy Miller Museum Collection in New Milton, Hampshire , and one in the German Two-Wheeler and NSU Museum in Neckarsulm .
literature
- Helmut Krackowizer : Milestones in motorcycle history . Motorbuch Verlag Stuttgart, 1st edition 1987, ISBN 3-613-01141-7 .
- Siegfried Rauch : Famous racing motorcycles - 150 old and new racing machines for Grand Prix use . 2nd Edition. Motorbuch Verlag, Stuttgart 1980, ISBN 3-87943-590-1 .
Individual evidence
- ↑ motorradonline.de Technical data Husqvarna 500 (accessed on January 15, 2016)
- ↑ a b Helmut Krackowizer: Milestones in motorcycle history . P. 95.
- ^ Siegfried Rauch: Famous racing motorcycles. , P. 88.
- ↑ a b Siegfried Rauch: Famous racing motorcycles. , P. 89.
- ^ Roy Poynting: The Sammy Miller Museum Collection . Redline Books, 2009, ISBN 978-0-9555278-0-7 , p. 60.