THE Nomad compounded diesel engine described in this paper has been developed by Napier during the past seven years.
Resulting from the combination of a diesel engine with a gas turbine, the engine gives lower fuel consumptions than can be obtained from any other type of powerplant and maintains these consumptions over a wide range of aircraft speeds and altitudes.
These characteristics, which are still further improved by the ability to use cheap fuels, produce an engine making possible extreme economy for air transport purposes and very long-range operations for either military or civil purposes.