GAZ-42

The GAZ-42 was a producer-gas version of the GAZ-AA truck, built at the Gorky plant in the Soviet Union. It was a cargo truck with a metal cab and a wooden platform with drop sides, and its engine could run on gas made from solid fuel or on petrol, for which it carried a 40 litre tank. To make up for the lost power the final drive ratio was raised from 6.6 on the GAZ-AA to 7.5, and the compression ratio from 4.6 to 6.2. A gas generator on the left of the truck, a cooler under the platform and a cleaner on the right turned wood, charcoal, peat, coal and similar fuels into engine gas, and the whole installation weighed 400 kilograms. In all 33,840 GAZ-42 trucks were built.