| Scania-Vabis 335/345/355 | |
|---|---|
 | |
| Overview | |
| Manufacturer | Scania-Vabis |
| Production | 1931–1944, 1,404 produced [1] |
| Body and chassis | |
| Class | Heavy duty truck |
| Powertrain | |
| Engine | Scania-Vabis ohv I4/I6 |
| Transmission | 4 speed non-syncro manual |
| Dimensions | |
| Wheelbase | 3.3 m (129.9 in) - 5.0 m (196.9 in) [1] |
| Curb weight | 7,800 kg (17,196.1 lb) - 12,000 kg (26,455.5 lb) (gross weight) [1] |
| Chronology | |
| Successor | Scania-Vabis L20 |
The Scania-Vabis 335/345/355 was a series of heavy duty trucks produced by Swedish automaker Scania-Vabis between 1931 and 1944.
A truck or lorry is a motor vehicle designed to transport cargo. Trucks vary greatly in size, power, and configuration; smaller varieties may be mechanically similar to some automobiles. Commercial trucks can be very large and powerful, and may be configured to mount specialized equipment, such as in the case of fire trucks, concrete mixers, and suction excavators.
Sweden, officially the Kingdom of Sweden, is a Scandinavian Nordic country in Northern Europe. It borders Norway to the west and north and Finland to the east, and is connected to Denmark in the southwest by a bridge-tunnel across the Öresund, a strait at the Swedish-Danish border. At 450,295 square kilometres (173,860 sq mi), Sweden is the largest country in Northern Europe, the third-largest country in the European Union and the fifth largest country in Europe by area. Sweden has a total population of 10.2 million of which 2.4 million has a foreign background. It has a low population density of 22 inhabitants per square kilometre (57/sq mi). The highest concentration is in the southern half of the country.
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In 1931 Scania-Vabis presented a larger version of its standard truck, called the 335. The truck had a payload capacity of 4 to 5 tonnes and was sold with a six-cylinder engine in petrol or Hesselman version. [2] In 1936 the truck was modernized with a more streamlined front with a slightly sloping radiator cover. More importantly the engine and cab was moved forward so that the engine was mounted above the front axle. This meant increased payload capacity with a longer loading platform and a better distribution of axle loads. From 1936 onwards the truck was offered with Scania-Vabis’ first pre-chamber diesel engine. [2]
The tonne, commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms; or one megagram (Mg); it is equivalent to approximately 2,204.6 pounds, 1.102 short tons (US) or 0.984 long tons (UK). Although not part of the SI, the tonne is accepted for use with SI units and prefixes by the International Committee for Weights and Measures.
A petrol engine is an internal combustion engine with spark-ignition, designed to run on petrol (gasoline) and similar volatile fuels.
The Hesselman engine is a hybrid between a petrol engine and a Diesel engine introduced by Swedish engineer Jonas Hesselman in 1925. It represented the first use of direct gasoline injection on a spark-ignition engine used to power a road going vehicle. The Hesselman engine saw use in heavy trucks and buses in models produced in the 1920s and 1930s.
Sales to private customers ceased at the outbreak of the Second World War. All production went instead to the Swedish Armed Forces and other public institutions. Most engines were converted to run on wood gas. The low energy content of wood gas led to plummeting engine power and the largest trucks were fitted with Scania-Vabis’ powerful eight-cylinder module engine.
The Swedish Armed Forces is the government agency that forms the military forces of Sweden, and which is tasked with defence of the country, as well as promoting Sweden's wider interests, supporting international peacekeeping efforts, and providing humanitarian aid.
Wood gas is a syngas fuel which can be used as a fuel for furnaces, stoves and vehicles in place of gasoline, diesel or other fuels. During the production process biomass or other carbon-containing materials are gasified within the oxygen-limited environment of a wood gas generator to produce hydrogen and carbon monoxide. These gases can then be burnt as a fuel within an oxygen rich environment to produce carbon dioxide, water and heat. In some gasifiers this process is preceded by pyrolysis, where the biomass or coal is first converted to char, releasing methane and tar rich in polycyclic aromatic hydrocarbons.
