Rolls-Royce Nene

The Rolls-Royce Nene was a 1940s British centrifugal compressor turbojet engine.

Development

The Nene or RB.41, was Rolls-Royce's third jet engine to enter production, designed and built in an astonishingly short five-month period in 1944, first running on 27 October 1944. The design saw little use in British aircraft designs, being passed over in favour of the Avon that followed it. Its only widespread use in Great Britain was in the Hawker Sea Hawk and the Supermarine Attacker. Pratt and Whitney took out a licence on the Nene and it went on to power many early carrier-based aircraft, notably the Grumman F9F Panther, as the Pratt & Whitney J42. Twenty-five were given to the Soviet Union as a gesture of goodwill, and were reverse engineered to develop the Klimov RD-45, and a larger version, the Klimov VK-1, which soon appeared in various Soviet fighters including Mikoyan-Gurevich MiG-15. It was briefly made under licence in Australia for fitment to the RAAF De Havilland Vampire fighters. It was also built by Orenda in Canada for use in 656 Canadair T-33 aircraft.

Although based on the "straight-through" version of the basic Whittle-style layout, the Nene used a double-sided centrifugal compressor for improved compression ratio and thus higher thrust. It was during the design of the Nene that Rolls decided to give their engines numbers as well as names, with the Welland and Derwent keeping their original Rover models, B/23 and B/26. It was later decided that these model numbers looked too much like those for bombers, and "R" was added to the front, the "R" signifying "Rolls" and the original Rover "B" signifying Barnoldswick. This RB designation scheme continues to this day.

The Nene doubled the thrust of the earlier generation engines, with early versions providing about 5,000 lbf (22.2 kN), but remained generally similar in most ways. This should have suggested that it would be widely used in various designs, but the Gloster Meteor proved so successful that the Air Ministry felt there was no pressing need to improve upon it. Instead a series of much more capable designs using the Rolls-Royce Avon were studied, and the Nene generally languished.

The Nene was used to power the first civil jet aircraft, a modified Vickers Viking, which flew first on 6 April 1948.

pecifications (Nene)

jetspecs

type=Turbojet
length=97 in (2,464 mm)
diameter=49.5 in (1,257 mm)
weight= 726 kilograms (1600 pounds)
compressor=Dual-entry centrifugal compressor with two-sided impeller
combustion=9 flow-combustion chambers
turbine=Single-stage axial flow
fueltype=Aviation kerosene with 1% lubricating oil
oilsystem=
power=
thrust=5,000 lbf (22.2 kN) at 12,400 rpm for takeoff
compression=
aircon=
turbinetemp=
fuelcon=
specfuelcon=
power/weight=
thrust/weight=:1

References

* Bridgman, L, (ed.) (1998) "Jane's fighting aircraft of World War II." Crescent. ISBN 0-517-67964-7
* [http://www.lancastermuseum.ca/engine_rollsnene.html The Nanton Lancaster Society]

External links


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Rolls-Royce Nene — Saltar a navegación, búsqueda Nene Rolls Royce Nene expuesto en la Base Pearce de la RAAF, Oeste de Australia Tipo Turbojet …   Wikipedia Español

  • Rolls-royce nene — Moteur Rolls Royce Nene Mk.II Le moteur Rolls Royce Nene ou Rolls Royce RB.41 est le troisième moteur à réaction conçu et fabriqué en série par Rolls Royce. Apparu en 1944, il n a pas équipé beaucoup d avions britanniques mais a cependant eu une… …   Wikipédia en Français

  • Rolls-Royce Nene — Mk.II Das Rolls Royce Nene oder Rolls Royce RB.41 war nach den Typen Welland und Derwent das dritte Strahltriebwerk der britischen Firma Rolls Royce, das in Serie gebaut wurde. Das Triebwerk mit Radialverdichter wurde 1944 innerhalb von nur… …   Deutsch Wikipedia

  • Rolls-Royce Nene — Moteur Rolls Royce Nene Mk.II Le moteur Rolls Royce Nene ou Rolls Royce RB.41 est le troisième moteur à réaction conçu et fabriqué en série par Rolls Royce. Apparu en 1944, il n a pas équipé beaucoup d avions britanniques mais a cependant eu une… …   Wikipédia en Français

  • Rolls Royce Derwent — Saltar a navegación, búsqueda Derwent Motor Rolls Royce Derwent Tipo turborreactor F …   Wikipedia Español

  • Rolls-Royce Trent 500 — Rolls Royce Trent ist eine Familie von Dreiwellen Turbofan Strahltriebwerken von Rolls Royce, die auf dem Rolls Royce RB211 basieren. Der Schub der verschiedenen Versionen liegt zwischen 236 und 423 kN (53.000 und 95.000 lbf). Der Name Trent… …   Deutsch Wikipedia

  • Rolls-Royce Trent 900 — Rolls Royce Trent ist eine Familie von Dreiwellen Turbofan Strahltriebwerken von Rolls Royce, die auf dem Rolls Royce RB211 basieren. Der Schub der verschiedenen Versionen liegt zwischen 236 und 423 kN (53.000 und 95.000 lbf). Der Name Trent… …   Deutsch Wikipedia

  • Rolls-Royce RB211 — Die Baureihe Rolls Royce RB211 sind Strahltriebwerke der mittleren Schubklasse des britischen Herstellers Rolls Royce. Es sind moderne Turbofan oder Mantelstromtriebwerke mit hohem Nebenstromverhältnis. Inhaltsverzeichnis 1 Geschichte …   Deutsch Wikipedia

  • Rolls-Royce Derwent — Das Rolls Royce Derwent war nach dem Welland das zweite in Serie produzierte Strahltriebwerk von Rolls Royce. Das nach dem gleichnamigen Fluss in der englischen Grafschaft Derbyshire benannte Einwellen Triebwerk hat einen Radial verdichter, neun… …   Deutsch Wikipedia

  • Rolls-Royce Tay — Das Rolls Royce Tay ist der Name zweier Strahltriebwerke des britischen Herstellers Rolls Royce. Inhaltsverzeichnis 1 Erstes Rolls Royce Tay auf Basis des Nene Triebwerkes 2 Zweites Rolls Royce Tay auf Basis des Spey Triebwerkes 2.1 …   Deutsch Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.