The Stalwart, or “Stolly,” is a full amphibious high-capacity load carrier designed in the UK in the mid-1950s and was able to carry upwards of 5 tons of supplies across rough terrain and rivers. It was also able to leave amphibious landing ships offshore to land on beaches.

Built by the Alvis Co., the Stalwart weighs about 9 tons, and is powered by a straight 8-cylinder Rolls Royce gas engine that drives both the wheels and the water jet propulsion system while swimming. The vehicle can travel at 60km/h on land and up to 12km/h in the water.

This example is one of the last 30 produced and is a Mk. 2 variant that features an Atlas crane for two main tasks, that of carrying palletized ammunition for artillery batteries, and as a support vehicle for regiments of armoured vehicles to carry spare engines and equipment for field repairs.

The Stalwart is being shown today with some examples of engines and equipment that it would have carried during its service in the 1970s in Germany. One side has been lowered to demonstrate the cargo bay. Both sides were closed and locked for travel, as these provided the water buoyancy.

These were used in many theaters with both the British and German Armies, and were withdrawn from use in the early 1990’s