Napier Naiad

The Napier Naiad was a British turboprop gas-turbine engine designed and built by D. Napier and Son in the late 1940s, and it was the company first gas turbine. It used a 12-stage axial compressor, five combustion chambers and a two-stage turbine, and produced up to 1,500 shaft horsepower plus a little residual thrust. A twin arrangement called the Coupled Naiad was also developed, but both projects were cancelled before they found a market. The Naiad compressor and turbine layout was adapted for the Napier Nomad turbo-compound engine, and a Naiad is kept on display at the Science Museum in London.