War Machine, Volume 7

Modern Amphibious& Oversnow Vehicles GAZ-46 MAV amphibious vehicle (continued) gine and crew compartments. The vehicle has a maximum payload of 500 kg (1102 lb) and can tow a trailer or light weapon (a mortar or anti­aircraft gun) of similar weight. Specification GAZ-46 MAV Crew: 1+4 Combat weight: 2480 kg (5467 lb) Powerplant: one M-20 4-cylinder petrol engine developing 55 hp (41 kW) Dimensions: length 5.06 m (16 ft 7.2 in) width 1.735 m (5 ft 8.3 in) height with hood up 2.04 m (6 ft 8.3 in) Performance: maximum road speed 90 km/h (56 mph) maximum water speed 9 km/h (5.6 mph) range 500 km (311 miles) fording amphibious gradient 60 percent trench not applicable inStill use after more than 30 years, the GAZ-46 amphibian is being replaced in fron t-line service by BRDMscout cars. With a carrying capacity of500 kg (1102 lb) it should b e regarded as an amphibious field car. USSR PTS amphibious vehicle The PTS amphibian entered service with the Soviet army in the mid-1960s, and in comparison with the earlier K- 61 amphibian has a greatly increased load-carrying capability slightly high­er speed on both land and water and can also tow a trailer when afloat. The PTS has a steel hull with the crew com­partment at the very front of the hull and the cargo area stretching back right to the rear. The crew compart­ment unlike those on the earlier K-61 and BAV-485 is fully enclosed the two-man crew entering via two circu­lar roof hatches. An NBC system is pro­vided to enable the vehicle to operate in an NBC-contaminated area The en­gine is beneath the vehicle with the exhaust pipes on top of the cargo com­partment on each aside configuration which in certain conditions could per­mit exhaust fumes to be blown back into the cargo area an unfortunate situation when troops are being car­ried The PTS can carry a maximum of 5000 kg 0231b) (11 of cargo landon and 10000 kg (22046 lb) on water or up to 70 or so fully equipped troops. Cargo and vehicles such as aUral- 375D 6x6 4000-kg 818-lb) (8 truck can be loaded into the PTS via the rear tailgate which has two integral loading ramps. The suspension of the vehicle is of the torsion-bar type with six dual rubber-tyred road wheels plus a drive sprocket at the front and an idler at the rear there are no track-return rollers. The vehicle is driven in the water by two propellers mounted in tunnels under the rear of the hull and steered by two rudders. Before the vehicle en­ters the water a trim vane is erected at the front to stop water swamping the forward part of the vehicle and the bilge pumps are switched on. All vehi­cles have a front-mounted winch (to recover other vehicles and equip­ mentor to assist in self-recovery), night driving equipment a searchlight mounted on top of the crew compart­ment radios and an intercom. The PTS can also tow the specially developed PKP boat-shaped two- wheel trailer which is provided with ramps to enable cargo to be loaded. This has two sponsons one on each side: for land travel these are folded on top of the trailer but before entering the water they are swung through 180° and locked in position to provide addi­tional buoyancy. The trailer is used to carry a 122-mm (4.8-in) D-30 howitzer while the PTS vehicle carries the truck ammunition and crew. The latest production version is the PTS-M which has minor differences including increased fuel capacity. The only known variant is one used by Po­land which has a rocket-propelled mme-clearing system mounted in the rear. In addition to being used by most members of the Warsaw Pact the PTS is also operated by Egypt Iraq and Syria. Specification PTS Crew: 1+1 Combat weight: landon 22700 kg (50045 lb) and on water 27700 kg (61068 lb) Powerplant: one V-54P diesel developing 350 hp(261 kW) Dimensions: length 11.50 m (37 ft 8.8 in) width 330 m(10 ft 10 in) height 2.65 m (8 ft 8.3 in) Water-driven by twin tunnel- mounted propellers at the rear the large PTS is capable of carrying up to 04610000 kg(22 lb) on water or up to70m en. The crew compartment at the front of the vehicle is fully sealed against NBC (Nuclear Biological, Chemical) contaminants. Performance: maximum road speed 42 km/h (26 mph) maximum water speed 10.6 km/h (6.5 mph) range 300 km (186 miles) fording amphibious gradient 60 percent vertical obstacle 0.65 m (2 ft 1.6 in) trench2.5 m(8 ft 2.4 in) The PTS has been in Egyptian service for some years its amphibious carrying capacity having been used to good effect during the Yom Kippur war of 1973.1443
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