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7 Ton, gl (s) Truck, Prototype

Das Bild zeigt den LKW in einer Halle parkend.
Prototyp Lkw 7t gl (s) (Source: BWB / WTS)Enlarge image

Starting in 1962, the plans for replacing the first vehicle generation were initiated. The focus was on medium- and heavy-duty trucks with all-terrain capability and armored wheeled vehicles as military special developments. The idea was to build a single family of wheeled vehicles.

Commercially available assemblies were to be used for the new vehicles as far as possible and the new vehicles were to be much more efficient, at the same time facilitating maintenance and operation. 90% of the equipment consisted of vehicles with all-terrain capability, while 10% had no all-terrain performance; the vehicles were to be categorized in only five instead of twelve payload classes. Additionally, a certain percentage of all-terrain vehicles was to be equipped with multifuel-capable engines as well as amphibious capabilities.

After the statements of work had been prepared, five truck manufacturers established a joint office at the suggestion of the FMoD and with financial support from the FMoD. In this joint office each company assumed certain responsibilities:

  • MAN: Frame and chassis
  • Magirus-Deutz: Engine, drive train, vehicle cab
  • Rheinstahl-Henschel: Load platform for land vehicles
  • Krupp: Amphibious platform and amphibious drive
  • Büssing: Armored wheeled vehicles

Initially, Daimler-Benz was not part of the joint office and developed its own vehicle family in accordance with the specified features at its own expense without entering into a contract.

The first model types by the joint office and Daimler-Benz were released in the spring of 1968, followed by two other prototype series in 1970 and 1971. After the evaluation the version was decided and it was specified that Daimler-Benz was to be responsible for the further development of the armored wheeled vehicles within the scope of the overall program and furthermore, to contribute to an optimization of the use of commercially available parts of all manufacturers involved in the joint office. This optimization mainly concerned the rigid axle for all vehicles which was developed jointly by Daimler-Benz and MAN.

The joint office was to continue the development of unarmored transport vehicles with air-cooled multifuel engines.

Due to a revision of the military requirements because of the high procurement cost to be expected and in light of limited budgetary funds, the requirements for the multifuel capability of the engines, NBC protection and the amphibious capability of the vehicles were dropped in 1972.

The smallest type which was originally designed for a payload of 4tons was categorized in the 5ton payload class in 1975 after the wheelbase was lengthened and the platform was enlarged. The payload class defined as Category I thus included trucks with a payload of 5, 7 and 10 tons.

The budgetary situation necessitated a reduction of the originally planned quantity to a percentage of only 20% of these specially developed vehicles with regard to the total requirement.

The vehicles were delivered from 1976 to 1983 by MAN from the former Büssing works in Salzgitter. During the fielding of the vehicles constructional weak points were eliminated by means of various modifications later on, the so called extended follow-on generation IA1 was developed which also includes a 15 ton, all-terrain military (8x8) truck.

The outstanding features of these vehicles are as follows:

  • torsionally rigid frame and platform
  • rigid axles with coil springs on special suspension/steering elements for ideal all-terrain capability and terrain mobility.
  • gearbox with torque converter for simplified operation and gentle handling of the vehicle as well as good all-terrain handling characteristics -- air-cooled engine in the rear cabin, thus
  • low lift and at the same time high road clearance.

The replacement of the vehicles of the follow-on generation using budget funds as scheduled for the early nineties was not possible, so the follow-on generation vehicles will be in service use for a longer period than originally planned. The vehicles for the operation in Bosnia were equipped with a protection system against sniper fire which consists of modular protective elements mounted on the outside of the driver's cab as well as bulletproof glass.


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