Talk:Supermarine Spitfire variants: specifications, performance and armament

Military history: Aviation / British / European / World War II B‑class

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Aviation: Aircraft Start‑class

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Necessity of this article

Is this article really needed? The name is too long! And I think all the variant and performance info should go in 1 page. --Fireaxe888 (talk) 17:20, 11 September 2008 (UTC)[reply]

How many articles are "really needed" in Wikipedia? If you can think of a better title for the article then, by all means, discuss your thoughts with those of us who have spent hours working on it :). The reason the information is in more than on page is that it would be near impossible to present all of the data on one page, given the limitations of the Wikitable format; things would be so squeezed in that it would be impossible to read.Minorhistorian (talk) 10:49, 12 September 2008 (UTC)[reply]

Corrections to the information on Supercharging

There are some errors in regards to the effects of altitude on air mass and density. While air density decreases with altitude the fundamental change is that the weight of air decreases as a ratio of altitude; as a result an engine will have to draw in three times the volume of air at 30,000 feet as it does at S/L to create the same amount of power. I find a really useful book to have is an old one I found in a book store some years ago; Aircraft Power Plants by the Northrop Aeronautical Institute published in 1955 by McGraw Hill Books. I would recommend this to anyone who is interested in aeronautics because it describes everything related to WW 2 aero engines like the Merlin without being too scientific. It does turn up on the likes of Amazon from time to time http://www.amazon.com/s?ie=UTF8&applicationContextPath=%2Fgp%2Fsearch%2Fconstruct-application-context.mi&index=books&field-keywords=Northrop%20aircraft&page=1 plus most libraries would probably have a copy.Circlingsky (talk) —Preceding undated comment was added at 00:53, 20 September 2008 (UTC).[reply]

Image copyright problem with File:303 plane picture.jpg

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Beatrice Shilling's Contribution

The statement that "The remedy, invented by a female engineer, Beatrice "Tilly" Shilling, was to fit a metal diaphragm with a hole in it was fitted across the float chambers. It partly cured the problem of fuel starvation in a dive." is wrong. This story must be in hundreds, perhaps of thousands of books; but it is inaccurate. Miss Shilling's contribution was to solve the problem of flooding of the carburetor by the fuel pump, which followed after the initial fuel starvation, as under negative G the float was pushed down by the fuel on top. Her solution was to install a diafragm in the fuel line (not the carburetor!) to restrict the fuel flow to the maximum the engine could consume. (A reasonably complete account can be found in Aeroplane Monthly of February 1997; see also 'British Piston Aero-Engines' by Alec Lumsden.) Mutatis Mutandis (talk) 19:40, 28 August 2010 (UTC)[reply]