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Sisu K-44
Sisu K-44 is a three-axle 4×4+2 driven lorry made by the Finnish heavy vehicle manufacturer Suomen Autoteollisuus (SAT) from 1959 to 1965. The most usual applications were for log transportation and earth moving vehicles. The K-44 was noted for its excellent gradient capabilities. The legally permissible maximum vehicle payload was between 7 800 and 11 750 kg: with a trailer this increased to 20 000 kg. The K-44s were powered by Leyland diesel engines with power outputs of between 85.8 and 156.7 kW.
The K-44 was replaced in 1965 by the K-145.
== Development ==
Single axle semi-trailers were commonly used for log transportation in Finland in the 1960s. The maximum axle load of the existing 4×4 Sisu K-40 was often exceeded in logging work. The solution was a truck incorporating the addition of a non-driven third axle at the back, paired in a tandem axle with the rear driven axle.〔 The new model, the Sisu K-44, was introduced in 1959, with a choice of engine sizes for both the middle-weight (''"Kontio"'')〔 and the heavy (''"Jyry"'') classes.〔 The K-44's driven front axle and transfer case were borrowed from the existing K-40, while the bogie, of which only the first axle was driven, came from the K-34. This drivetrain layout, called 4×4+2, is seldom seen outside Finland. However, Vanajan Autotehdas, SAT's main domestic competitor, had already introduced a similarly configured vehicle a year earlier.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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