Talk:Rolls-Royce Gnome

Units

The article reads: "Airflow 13.8 lb/s". This doesn't make sense - that's weight per unit time. From what I can tell the customary unit for airflow is cubic feet per minute (volume per unit time). Is there a source for this, and a measurement in SI units such as l/s or m³/s? Cleduc 01:08, 26 December 2006 (UTC)

I assume the author meant cu ft. - Emt147 ^Burninate! 01:55, 26 December 2006 (UTC)

It's certain that the author meant lb/s. This is the customary unit in the gas turbiue industry. 86.184.153.55 (talk) 20:09, 22 September 2010 (UTC)

The author is referring to pounds-mass 1 lbm = 0.45 kg. -SidewinderX (talk) 11:30, 23 September 2010 (UTC)

Rough calculation: 4,000 litres, or 4 cubic metres, per second. Sounds plausible. GraemeLeggett (talk) 12:09, 23 September 2010 (UTC)

Also, looking at it again, what the author really meant was the mass flow of air. But, I don't see the line in the article anymore, and the original comment is over 4 years old, so it's a moot point. -SidewinderX (talk) 12:32, 23 September 2010 (UTC)

Configuration

It seems to me there a discrepancy between text and specification section. The text states two-stage compressor turbine, one-stage power turbine, the specs the opposite. --A.Kracher (talk) 04:56, 16 October 2010 (UTC)

I have adjusted the text to agree with the cited specification section. Cheers Nimbus (Cumulus nimbus floats by) 18:53, 16 October 2010 (UTC)

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# of turbine stages and Flight magazine

The Flight magazine article (1973) [1] used as the current ref8 incorrectly states the turbine driving the compressor is single-stage, where as it is really a two-stage turbine, and this would be very hard to alter. The General Electric T58 article confirms the turbine is two-stage.

Up to H1400, the free power turbine was single stage. The variants section of the WP article states that a couple of later higher power models had a two-stage free power turbine. This is plausible and easier to enact, but given the confusion that has gone on, we should make an effort to check. JBel (talk) 08:11, 9 July 2022 (UTC)

I have changed the source for the turbine and specification section to Jane's 1982-83 which is correct and accessible (to me at least!). Just for info the citation style should not be changed without good reason (WP:CITEVAR) though there was one template already in use and citations are placed after punctuation (WP:REFPUNCT), I placed it at the end of the sentence as the source covers both the compressor and turbine section. Nimbus (Cumulus nimbus floats by) 10:22, 9 July 2022 (UTC)