Sisu SA-110 is a prototype of a light two-axle off-road lorry made by the Finnish heavy vehicle manufacturer
Oy Sisu-Auto Ab in 1986. Total six pieces were made. The vehicle was partly armoured.
The initiative for the vehicle development came from the Finnish Defence Forces which sent an inquiry for a light off-road lorry to Sisu-Auto in April 1983. At the time the Defence Forces was planning to purchase of 1 000 such vehicles. Sisu-Auto handed over a prototype for testing at the end of year 1986.
Technical data
Sisu-Auto opted two engine types:
Deutz Deutz may refer to:
People
* Emmanuel Deutz (1763–1842), German-born French rabbi
* Rupert of Deutz, (–), Benedictine theologian and writer
* Simon Deutz (1802–1852), German-born French courtier
Places
* Deutz, Cologne, a former town, si ...
BF 6 L 913 and
Valmet
Valmet Oyj is a Finnish company and a developer and supplier of technologies, automation systems and services for the pulp, paper and energy industries.
Valmet has over 200 years of history as an industrial operator. Formerly owned by the St ...
411 DSJ.
The latter one is in use in four vehicles.
The gearbox is ZF-S5-35/2 which was connected to a reduction gear unit of Sisu's own design. The axles are
portal type and they are equipped with
disc brakes and
CTI system.
Unlike in
Masi, the frame is stiff and the high travel of wheels is only carried out by suspension. The front axle is sprung with
coil spring
A selection of conical coil springs
The most common type of spring is the coil spring, which is made out of a long piece of metal that is wound around itself.
Coil springs were in use in Roman times, evidence of this can be found in bronze Fi ...
s, the rear axle with parabolic
leaf spring
A leaf spring is a simple form of spring commonly used for the suspension in wheeled vehicles. Originally called a ''laminated'' or ''carriage spring'', and sometimes referred to as a semi-elliptical spring, elliptical spring, or cart spring, ...
s.
Characteristics
The tests showed that from its mobility the vehicle was the best in the market. The engine started in -25 °C. SA-110 went in 60 cm deep snow and 75–85 cm deep water without any problems. It could climb 30° hills and it drove over a pile of gravel with an angle of 25° with ease.
Due to these characteristics, the vehicle was called ″Unimog killer″.
The deficiencies were a too small engine power and a too low torque and also a too high noise level; the highest measured value in the cabin was 88 dB. The 9.4-metre turning circle was regarded too large and the ratios of the 3rd and 4th gear were criticised.
The too high price of the vehicle was one reason why the serial production was not started. It cost 85% of the
Masi and 50% of the price of
Pasi
Pasi may refer to:
* Pasi (caste), a Hindu caste of northern India
* ''Pasi'' (film), a 1979 Tamil film
* Pasi (given name)
* Pasi (surname), a surname of the Pasi community
* Pasi, Papua New Guinea, a settlement near the coast of Sandaun Provinc ...
.
Sources
*
* {{cite book , title= Puolustusvoimien moottoriajoneuvot 1960–2000 , last= Mäkipirtti , first= Markku , year= 2006 , publisher= Apali Oy , location= Tampere , language= fi , isbn= 978-952-5026-50-4
References
External links
SA-110 with camouflage paintingSA-110 service vehicle
Sa110
Military trucks of Finland
Vehicles introduced in 1986