In World War II they built the Flat-12 petrol engine of 340 hp (250 kW) used in the Covenanter tank, and were also involved in the Rolls-Royce Meteor petrol tank engine from 1944.
In World War II they built the flat-12 petrol engine of 300 bhp used in the Covenanter This engine was also used in the prototype A20 tank, although this weighed more than twice the Covenanter and so was considered underpowered. Meadows were also involved in the Rolls-Royce Meteor petrol tank engine from 1944.