Napier Naiad

Naiad
Napier Naiad at the Science Museum (London).
Type	Turboprop aero engine
Manufacturer	D. Napier & Son

The Napier Naiad was a British turboprop gas-turbine engine designed and built by D. Napier & Son in the late 1940s. It was the company's first gas turbine engine. A twin version known as the Coupled Naiad was developed but both engine projects were cancelled before finding a market.^[1] The Naiad was also used, in adapted form, in the Napier Nomad turbo-compound engine design.

Applications

• Avro Lincoln - Test bed only

Engines on display

A Napier Naiad is on display at the Science Museum, London.^[2]

Specifications (Naiad)

Data from Flight^[3]

General characteristics

• Type: Turboprop
• Length: 102 in (2,591 mm)
• Diameter: 28 in (711 mm)
• Dry weight: 1,095 lb (497 kg)

Components

• Compressor: Axial flow
• Combustors: 5 chambers

Performance

• Maximum power output: 1,500 shp (1,118 kW) plus 241 lb (1 kN) residual thrust
• Overall pressure ratio: 5.5:1
• Air mass flow: 17.2 lb/sec (7.8 kg/s)
• Fuel consumption: 96.2 gph (364 L/hr)
• Thrust-to-weight ratio: 1.37 shp/lb (2.25 kN/kg)

See also

Related development

• Napier Eland
• Napier Nomad

Comparable engines

• Armstrong Siddeley Mamba
• Armstrong Siddeley Double Mamba

Related lists

• List of aircraft engines

References

Notes

1. Gunston 1989, p.106.
2. Science Museum Wiki page - Napier Naiad Retrieved: 28 July 2009
3. Flightglobal archive - Flight - September 1947 Retrieved: 28 July 2009

Bibliography

• Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9

External links

• Cutaway drawing of Napier Naiad
• "Napier Naiad" a 1948 Flight article