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A carrier's reactor(s) can't make liquid fuels faster than the planes would burn it. Gasoline or other hydrocarbon fuels are very energy dense in terms of mass and volume, and being liquid they're easy to pump and meter unlike the other common carbon-based fuel, coal.

Lessee, a litre of JP-4 contains about 35MJ or about 10kWh. US carrier reactors produce about 190MW at full chat (twin A4W reactors for the Nimitz class) so at an optimistic 33% conversion efficiency and dedicating one reactor's output to fuel production they could make about 3300 litres of JP-4 an hour. An F/A-18 burns about 10,000 litres of fuel an hour in normal flight so it would need three hours production from one dedicated reactor to fuel one plane for one operational cycle (takeoff, patrol, landing). Nimitz-class carriers carry 80-90 planes.

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james_davis_nicoll

James Nicoll Reviews

June 2025

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