Description
The hull of the Marder 1 is all welded steel, giving protection from small-arms fire and shell fragments with the front of the hull providing protection from up to 20 millimeters APDS rounds. Later variants had increased protection up to 30mm APDS, in response to the 30 mm autocannon armed BMP-2 and the development of top attack cluster bomblets.
The Marder is a relatively conventional design, with the driver sitting at the front left side of the hull with the engine to his right. The driver has three day periscopes mounted in a hatch that opens to the right. The center periscope can be replaced by a passive night vision device. Behind the driver is a seat for a single infantry man. In early version of the Marder this infantry man had a hatch which opened to the right and a periscope that could be rotated through 360 degrees, this hatch was removed in the 1A3 variant onwards.
In the center of the hull is the two man turret, which holds the commander on the right and the gunner on the left, both are provided with hatches. The commander has eight day periscopes for all round observation and the gunner has an additional three. The primary sighting system is the PERI-Z11 sight which has either 2x or 6x optical magnification. The sight can be replaced by a night vision device. To the rear of the turret is the troop compartment, which can hold six infantry men, sitting back to back facing outwards along the center of the hull.
The Marder is capable of fording in up to 1.5 meters of water unprepared, and can be fitted with a kit allowing it to ford water up to 2.5 meters deep.
The Marder is powered by an MTU MB Ea-500 six-cylinder liquid cooled diesel engine which develops approximately 600 horsepower at 2,200 rpm. The cooling radiators are mounted at the rear of hull either side of the exit ramp. The engine is coupled to a Renk four speed HSWL 194 planetary gear box with four forward and two reverse gears. The transmission also provides steering and braking via a stepless hydrostatic unit which transmits power to two drive units mounted at the front of the hull. The vehicle carries 652 litres of fuel, giving it a road range of around 500 kilometers. Early Marders could achieve a road speed of 75 km/h in 4th gear, but the extra armour of later vehicles reduced this to 65 km/h.
The Marder is propelled by a Diehl track which can be fitted with rubber road pads. The drive mechanism consists of six rubber tyred road wheel with a drive sprocket at the front of the hull and an idler at the rear. Three return rollers are also fitted. The suspension is a torsion bar system, with additional hydrostatic shock absorbers fitted to the front two and last two road wheels.
Read more about this topic: Marder (IFV)
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