D-944 PSZH

D-442 FUG/D-944 PSZH
Polish D-442 FUG at a museum, 01.07.2007.
Type	Amphibious Armoured Scout Car
Place of origin	Hungary
Service history
In service	Early 1964 - present
Used by	See Operators
Wars	See Service History
Production history
Designed	Early 1960s (D-442 FUG) Late 1960s (D-944 PSzH)
Produced	Early 1964 - ?
Specifications
Weight	D-442 FUG: 6.3 t (6.2 long tons; 6.9 short tons) D-944 PSZH: 7.5 t (7.4 long tons; 8.3 short tons)
Length	5.79 m (19 ft 0 in)
Width	2.5 m (8 ft 2 in)
Height	1.91 m (6 ft 3 in) (D-442 FUG)
Crew	2 (driver and commander) + 4 scouts (D-442 FUG) 3 (driver, gunner and commander) + 4 scouts (D-944 PSZH)
Armor	welded steel 13 mm maximum (D-442 FUG) 14 mm maximum (D-944 PSZH) sides 7 mm
Main armament	7.62 mm UK light machine gun (model 59) (D-442 FUG) 14.5 mm KPVT heavy machine gun (500 rounds) (D-944 PSZH)
Secondary armament	none (D-442 FUG) 7.62 mm PKT coaxial general purpose machine gun (2000 rounds) (D-944 PSZH)
Engine	Csepel D414.44 in-line 4-cylinder OHV 5.5 liter diesel 101 hp (75 kW)
Power/weight	D-442 FUG: 16 hp/tonne (11.9 kW/tonne) D-944 PSZH: 13.5 hp/tonne (10 kW/tonne)
Suspension	Wheeled 4x4 (+ 4 auxiliary wheels), leaf springs with hydraulic shock absorbers
Ground clearance	340 mm
Fuel capacity	200 l or 2x75 l
Operational range	D-442 FUG: 600 km (370 mi) D-944 PSZH: 500 km (310 mi)
Speed	87 km/h (road) (D-442 FÚG) 81 km/h (50 mph) (road) (D-944 PSZzH) 45 km/h (cross country) 9 km/h (water)

The D-442 FUG (Felderítő Úszó Gépkocsi - "amphibious reconnaissance vehicle") and D-944 PSZH (Páncélozott Személyszállító Harcjármű - "armored personnel carrier") are the results of Hungarian domestic development of relatively cheap amphibious armoured scout car and armored personnel carrier series. FÚG and PSZH were exported with limited success, thus it also known under its Czechoslovak designation OT-65.

Due to the similarities with BRDM-1 D-442 FUG often misinterpreted as a BRDM-1 modification. Although FUG have similar appearance to the Soviet BRDM-1 armoured scout car, major differences reflect the independent design.

The Hungarian military leadership had abandoned the promising domestic recon armored car project based on WW2-era Csaba, because the Soviet government promised to sell large numbers of old BA-64s from USSR reserves at a low price. Hungary never received any BAs, thus Hungarian People's Army had no wheeled armoured reconnaissance vehicle from 1945 to 1960s. the desperate need of suitable recon vehicle and the insufficient performance of the Soviet industry (persistent shortage of APCs and Recon cars) were encouraged the Hungarian industry to develop and mass product a cheap but capable enough recon vehicle. In order to speed up development and keep prices down Hungarian industry largely based the design on parts of existing civilian vehicles and boat manufacturing experience of the Hungarian shipyards.

The hull have designed by the Danube Shipyard in order to maximize buoyancy optimized for crossing rivers (better than BRDM), thus D-442 has much more angular shape than the BRDM-1's boat-like hull and it has two waterjets for amphibious propulsion instead of one as in BDRM-1. Powertrain was almost completely domestic design. The engine, winch and rear axle came from Csepel D-344 trucks, front suspension based on an modified Ikarus design, the transmission and the uniqe transfer system have designed by Rába, but the belly wheels were the same as the system of BRDM-1. Unlike the BRDM-1 which had a conventional 4x4 veliche, layout of FUG is more similar to BRDM-2, the engine compartment is in the rear and crew compartment is in the front and center. The transmission is located in the middle, this made the crew compartment noisy but facilitate maintenance compared to BRDM.