FV622 Alvis Stalwart Mk2
The FV621 Stalwart, known as the 'Stolly' is an amphibious truck in service with the British Army. The design is unusual with the hull being the chassis. The engine is under the open topped load deck which has drop down panels one each side. Waterproofing protects against leaks. The Mk 2 has a two man crew with room for a third seat. It can carry 38 fully equipped troops and features a more powerful jet drive unit giving it a faster speed in water.