XA-180 (EST) manufacturer Sisu XA-180
Prototypes and series
Patria Pasis have been produced in various models for various purposes. Originally Panssari-Sisu, was not produced by Patria, but by Sisu, a lorry manufacturer. The other entry as a possible armoured personnel carrier replacement for the Finnish Defense Force's BTR-60 was Panssari-Valmet, which did not win the competition.
Technically the variants of Pasi are marked with two letters XA, which means cross-country armoured vehicle, the first and second number means the power in tens of kilowatts. Therefore, Pasi XA-180 means that it is a cross-country armoured vehicle (XA) having an engine capable for 180 kW (18× 10 kW). The last number, 0, means that XA-180 is the first version of the 180 kW Pasi's.Prototype history
The prototype of XA-180 was produced by Sisu Auto in 1980 for the tests. Another type, which was ordered for tests was made by a tractor manufacturer Valmet (now Valtra). In 1983 Sisu XA-180 was chosen as the armoured personnel carrier for the defence forces of Finland. on 22 December 1983 first 41 Sisus were ordered for the defence forces itself and nine were reserved for the peace-keeping activities of the United Nations. The defence forces of Finland has 425 XA-180 and XA-185 types Pasis.
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