In August 1947, while American highways were filling with gasoline-burning Studebakers and Macks, a Central Intelligence Group field report quietly described a different vision of trucking — one powered not by petroleum but by firewood. The document, classified and routed to the State Department, Army, Navy, and Air Force, summarized intelligence on a curious Soviet engineering project:

A steam-driven truck equipped with two trailers having a combined capacity of 12-14 tons has been developed by the Soviet Automotive Research Institute... The truck's steam power installation weighs only 20% more than the [equivalent] automobile engine. It features a light, reliable boiler, and operates on cheap wood, peat, or coal fuel. Fuel and water are fed automatically. Used steam is reconverted in a condenser unit.

The performance figures are striking. According to the report, "the water tank has a capacity adequate for a 620-mile run. Fuel bunkers carry enough for a 150-280-mile run, depending on the type of fuel used." The Soviets, the analyst notes, expected to "reduce freight transfer costs 50%, at the same time economizing on critical gasoline."

What makes this forgotten? In the West, steam road vehicles were already considered an extinct branch of automotive evolution by 1947 — the Stanley Steamer had stopped production in 1924, and gasoline had won decisively. But the USSR, fuel-starved after the war and rich in forests and peat bogs, was seriously pursuing a parallel timeline where trucks ate biomass.

This wasn't fantasy. The NAMI-012, a real Soviet steam truck developed in the late 1940s, fits the description almost exactly: a 100-horsepower wood-burning hauler with automatic stoking and a closed-loop condenser. About 15 prototypes were built before the program was killed in 1950 — not because it failed, but because the Soviets struck oil at Volga-Ural and lost their motivation for fuel autarky.

The forgotten engineering insight here is the condenser-recovery boiler. Most steam vehicles guzzled water because they vented exhaust steam. The NAMI's closed-cycle condenser — converting used steam back to feedwater — let it run 600+ miles between refills, comparable to a modern semi. Combine that with multi-fuel flexibility (wood, peat, coal, presumably anything that burns), and you have something that looks oddly relevant in 2026: a heavy-duty hauler that runs on whatever the local biosphere produces, with no global fuel supply chain.

Modern biomass-to-power research, hybrid steam-electric concepts, and even the resurgence of "wood gas" generators during fuel shortages all echo this approach. The CIA's 1947 cable was, in a sense, an early intelligence warning about a technology path the world abandoned — one we're now quietly rediscovering as supply chains and carbon math get harder.