Talk:Westinghouse J30

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Compressor

I'm not sure how many stages the compressor in this engine is. According to the Flight article I cited in the specs table, it has a 10 stage compressor, but the article says that it's a 6 stage compressor. I also have a jet propulsion textbook (Flack) that mentions the engine and says that it has a 6 stage compressor. Anyone have more detailed information about this? -SidewinderX (talk) 01:32, 7 October 2009 (UTC)[reply]

If this is the 19-B Yankee then I have more specs for it from my 1946 gas turbines book, says six-stage axial in there. Nimbus (Cumulus nimbus floats by) 15:56, 7 October 2009 (UTC)[reply]

Do the specs for that book line up with what I pulled from Flight? I'd suggest that there might be several variants, but going from 6 to 10 stages in a compressor is a bit dramatic... -SidewinderX (talk) 16:00, 7 October 2009 (UTC)[reply]

Maybe not identical, described as the Westinghouse 19-B Yankee (no J number), thrust 1,365lb, length 8 ft 8 in, diameter 20 3/4 in, weight 847 lb. The photo looks very similar. There is a smaller version described there, the 9.5-B 'Baby', intended for a flying bomb. There are five engines described in an 'American Gas Turbines' section, GE I-40 (J-33), GE TG-100 (turboprop), GE J-35 and Westinghouse 9.5-B Baby and 19-B Yankee. Only two with J numbers. Nimbus (Cumulus nimbus floats by) 16:12, 7 October 2009 (UTC)[reply]

I think those Westinghouse engines are experimental variants, but I'm not quite sure how they relate. I found this wonderful looking report which is a 1954 NACA report about engines tests. a quick look through it describes the "19B-8" engine as a 6 stage axial and the "19XB-1" as a 10 compressor stage variant of the 19B-8. I guess the question is which of these became the J30. I'm leaning toward agreeing with Flight, as it describes the J34 as being a 1 stage upgrade of the J30, from 10 to 11, but I'm not positive yet. -SidewinderX (talk) 16:25, 7 October 2009 (UTC)[reply]

Another find this book preview talk about devleopment process of both the 19B and the 19XB. Man, I want to buy this book, it looks wonderful! -SidewinderX (talk) 16:28, 7 October 2009 (UTC)[reply]

Per the Leyes/Fleeming book, the 19B is related to the J30, though they don't give enough details to know if the 19B ever received a specific J30 variant designation. The 9.5B is related to the 9.5A which was designated the J32. The GE TG-100 is the General Electric T31. - BilCat (talk) 16:39, 7 October 2009 (UTC)[reply]

It's a great book, Side - good for bathroom reading! I was able to get it for less than $40. on Amazon, but you might find it cheaper somewhere else online. Also, the J34 is based on the 24C. The numbers in the designations (9.5, 19, 24) are the original engine models' diameters; the 19 came first, and the others were basically scaled-down (9.5) or scaled up (24). - BilCat (talk) 16:46, 7 October 2009 (UTC)[reply]

Go on, buy it!! Interesting info Bill. It does say in the 1946 book that the 19-B Yankee was installed in the McDonnell FD-I Phantom which appears to agree with this article. Nimbus (Cumulus nimbus floats by) 17:09, 7 October 2009 (UTC)[reply]

Well, looking at the excerpt from the Leyes/Fleeming book, the 19B was the original engine, and flown in the XFD-1, but only 28 were ordered by the Navy. The 19XB (10 stage) engine was an improved 19B engine and powered the FH-1 aircraft, with 261 19XB engines ordered. That leads me to believe that the "production" J30 was really the 19XB, and therefore the 10 stage version. Does that make sense to everyone? If so I'll start distilling this into the article in a coherent manner. -SidewinderX (talk) 17:31, 7 October 2009 (UTC)[reply]

J30 with the ten-stage compressor was the J30-WE-20 - presumably as you state, the 19XB - see 1953 Flight article here: [1] — Preceding unsigned comment added by 80.7.147.13 (talk) 20:47, 9 February 2014 (UTC)[reply]