Leyland Hippo

Leyland Hippo Mk II
Type Heavy cargo truck
Place of origin United Kingdom
Service history
In service 1944-1950s
Used by British Army & Royal Air Force
Wars World War II
Production history
Designer Leyland Motors Ltd
Designed 1943
Manufacturer Leyland Motors Ltd
No. built ≈ 1,000
Variants Mk II & Mk IIA
Specifications
Weight 8.3 long tons (8.4 t)
Length 27 ft 3 in (8.31 m)
Width 8 ft 1 in (2.46 m)
Height 10 ft 11 in (3.33 m)
Crew 2
Engine Six-cylinder inline Leyland L6 diesel
100 bhp (75 kW) at 1,800rpm
Payload capacity 11.4 long tons (11.6 t)
Transmission 5F1Rx2, wheeled 6x4 drivetrain
Suspension Live axles on semi-elliptical multi leaf springs
Speed 30 mph (48 km/h)
References Chris Bishop[1] & Pat Ware[2]

The Leyland Hippo was a heavy general service cargo truck used by the British Army and Royal Air Force during World War II and the immediate post-War years.

Overview

Leyland Hippo Mk I

The Leyland Hippo Mk I, also known as the WSW17, was a militarised version of a pre-war Leyland Motors Ltd truck with an open military cab and body. 330 Hippo Mk Is were supplied to the British Armed Forces throughout 1939 and 1940.[1][2]

Leyland Hippo Mk II

The Leyland Hippo Mk II was a new design by Leyland, developed as a result of the planning for D-day, which concluded trucks with 10 long tons (10 t) cargo capacity offered considerable logistic advantages over smaller vehicles. Design of the Hippo Mk II commenced in 1943 with production commencing in late 1944. The Hippo Mk II arrived too late to see service in the days immediately after D-day, but roughly 1,000 were in service by VE day and they remained in service with the British Army and the Royal Air Force into the 1950s.[1][2]

The Hippo Mk II was a wheeled 6x4 truck, powered by a 100 bhp (75 kW) Leyland six-cylinder inline diesel engine, through a five-speed gearbox and two-speed auxiliary gearbox. The Hippo Mk II had a new two man enclosed steel cab with pull-down windows, the top portion of the cab could be removed to reduce the overall height for shipping. The Mk II was fitted with single tyres at the rear, the Mk IIA was fitted with narrower dual wheels at the rear, this necessitating the need to carry two spare tyres for the front and rear.[1][2][3]

The standard general service Hippo Mk II body was a steel framed, timber well type incorporating the wheel arches which reduced the loading height, an important consideration given most of the loading and unloading was done by hand. Steel hoops and a canvas cover gave weather protection and prevented identification of the load by the enemy. Some Hippo Mk IIs were fitted with large van bodies and several with expanding bodies. The sides on the latter were split horizontally, the top half expanding up to give greater roof coverage, the bottom half down to give greater floor space, multiple vehicles could be linked together to form a consolidated workshop area. Post-war bodies included a 2,000 imp gal (9,100 l) refueller.[1][2]

References

  1. 1 2 3 4 5 Chris Bishop (ed), The encyclopedia of weapons of World War II, London: Metro Books, 1998, ISBN 1-58663-762-2.
  2. 1 2 3 4 5 Pat Ware, A complete directory of military vehicles, Wigston: Anness Publishing Ltd, 2012.
  3. ↑ Imperial War Museums, "Leyland Hippo Mk II", iwm.org.uk, retrieved 23 June 2018.
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