Talk:Rolls-Royce Derwent

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Military history: Aviation / British / European / Cold War Start‑class

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Miles M.52 supersonic project[edit]

According to "The Miles M.52 Story": "Engine development went to the Whittle company utilising the W2/700 with after burning - later known as the Rolls Royce Derwent."

I suspect that this is an over-simplification. Can you substantiate or expand on this, and also update the Miles M.52 page accordingly, or leave me a message? GilesW (talk) 19:26, 12 October 2009 (UTC)[reply]

Would agree, did you see the Power Jets link in the lead? It might help a bit, there is a photo of a W2/700 there. Bill Gunston confirms in his engine encyclopedia the intended use of an afterburning W2/700 for the M.52. He notes Frank Whittle's assistance with development of the Derwent's compressor. I would say that the W2/700 and Derwent are not the same thing after a quick read but it was a tangled web of collaboration back then! Cheers Nimbus (Cumulus nimbus floats by) 20:20, 12 October 2009 (UTC)[reply]

Thanks for the reply.

The W.2/700 was trialled with both reheat (on a Meteor) and with an aft-fan, although I don't know if the latter was flown or just run on a testbed. The Derwent originated with the Rover B.26 re-design of the W.2B/500. — Preceding unsigned comment added by 95.150.100.255 (talk) 10:05, 21 April 2016 (UTC)[reply]

Engine versions[edit]

The Power Jets W2 was passed to RR. The Miles M.52 engine was said to be the W2/700 + 'augmentator' + 'reheat jetpipe'. Now I understand that (W2/700 + augmentator) is in today's terminology a turbofan.

Was that also passed to RR? I can find very little about it in Hooker's book "Not much of an engineer".

Was the turbofan version of the W2/700 given its own model number?

Was the turbofan version or a derivative used in any other aircraft?

Did the turbine part of the turbofan inform or contribute to development of the Trent turboprop, or vice versa? GilesW (talk) 21:19, 13 October 2009 (UTC)[reply]

I just created the Power Jets W.2 article today, it does not answer your questions fully unfortunately. I did see mention of a ducted fan but no solid references for it. Not a turbofan. I am trying to work out where Whittle and RR parted company and why. In some ways we have more information about the WWI engines (95 years ago) than we do on the WWII engines. They were protected by the Official Secrets Act which caused a blank in contemporary reporting which is now causing us headaches! Nimbus (Cumulus nimbus floats by) 23:47, 13 October 2009 (UTC)[reply]

Whittle's team at Power Jets designed an improved compressor casing, the Type 16, that was used on the Derwent II — Preceding unsigned comment added by 2.31.147.22 (talk) 14:39, 17 February 2015 (UTC)[reply]

What stigma?[edit]

and to avoid the stigma of the earlier design, this was named the Derwent Mk.V.

It seems to me the history of the original Derwent was quite successful in the Meteor, so I'm not sure what this "earlier design" is referring to? The Welland perhaps? But why would they possibly refer to this design as the Welland? It's entirely different in history and layout?

Can someone explain this statement? Maury Markowitz (talk) 14:51, 1 December 2013 (UTC)[reply]

No, so deleted. 86.139.51.123 (talk) 02:09, 11 May 2014 (UTC)[reply]

The Derwent V was a scaled-down development of the Nene and presumably as a radically different version to the Nene it was given the name "Derwent V" as it was specifically intended for the Meteor airframe.

The Derwent V engine only came to be because either Whittle or Hooker (neither remembers who's idea it was) thought of scaling down a Nene to fit the Meteor's nacelles. After a few initial calculations on the idea, Hooker blurted out "We've got a 600 mph Meteor!" — Preceding unsigned comment added by 2.24.215.233 (talk) 19:09, 4 January 2015 (UTC)[reply]

Starwars - IG-88 head[edit]

In starwars the cantina drink dispensers and the bounty hunter IG-88's head came from Rolls Royce Derwent V parts. Derpypickle (talk) 01:36, 4 August 2023 (UTC)[reply]

https://www.whenitwascool.com/ig88-everything-you-want-to-know-about-the-star-wars-bounty-hunter-ig88 Derpypickle (talk) 01:47, 4 August 2023 (UTC)[reply]