Napier Gazelle

The Napier Gazelle is a turboshaft helicopter engine that was manufactured by D. Napier & Son in the mid-1950s. In 1961 production was nominally transferred to a joint venture with Rolls-Royce called Napier Aero Engines Limited."ENGLISH ELECTRIC-ROLLS ROYCE Napier Aero Engines Ltd." Times [London, England] 1 June 1961: 24. The Times Digital Archive. Web. 30 Aug. 2016. But the venture closed two years later.Napier Aero Engines Ltd (closure) Hansard, 8 March 1963 vol 673 cc921-32

Variants NGa.1Emergency rating at 20,400 rpm, 1 hour rating at 19,800 rpm, Max continuous rating at 19,000 rpm NGa.2Emergency rating at 20,400 rpm NGa.2(R) NGa.2 series 2 NGa.3Emergency rating at 20,400 rpm NGa.4Emergency rating at 20,400 rpm NGa.13(R) NGa.13 series 2 NGa.18 NGa.22 Mk.101 Mk.161 Mk.162 (NGa.13 series 2) Mk.165 Gazelle 501 Gazelle 503 Gazelle 512 Gazelle 514 Gazelle E.219

Applications These helicopter engines were used on the Westland Wessex HAS 1 and HAS 3 (other versions of the Wessex had two Rolls-Royce Gnome engines) and the Bristol Belvedere (later Westland Belvedere) transport helicopter.

Engines on display

A preserved Napier Gazelle is on display at the Royal Air Force Museum London. A preserved Napier Gazelle from a Westland Wessex helicopter is on display at the Queensland Air Museum, Caloundra, Australia. A Napier Gazelle is on display at the South Yorkshire Aircraft Museum, Doncaster A further Napier Gazelle is displayed at the Solent Sky Museum, Southampton

Specifications (Gazelle 501 / Mk.101 / NGa.2(R))

Napier Gazelle

Bron en licentie