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P & W 1830-75

 
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bshepherd



Joined: 18 Jan 2006
Posts: 3

PostPosted: Sat Feb 25, 2006 23:00    Post subject: P & W 1830-75 Reply with quote

The 1830-75 is one of the 1350 hp versions of the 1830. Besides having the mags on the nose case and a little larger blower than the more common 1830s it also had leaded crankshaft and propeller shaft bearings. Because of their greater duribility (according to the maintenance manuel ). Does anyone know if this proved to be correct?
Also what aircraft was this model engine designed for? It now appears on some DC-3s but I dont think it was ever an origional engine for the DC-3. It appears to be an R 2000 before they boared it out. It uses the same nose case as an R 2000. I am using it on and old Russian Warbird.
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kmccutcheon



Joined: 13 Jul 2003
Posts: 191
Location: Huntsville, Alabama USA

PostPosted: Sun Feb 26, 2006 06:37    Post subject: Re: P & W 1830-75 Reply with quote

bshepherd wrote:
Also what aircraft was this model engine designed for?


According to http://www.enginehistory.org/moddesig.htm
and http://www.enginehistory.org/P&W/R-1830/R-1830Index.pdf

XB-24K
XB-24N
B-24N
B-24P
YB-24K
DC-3
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Kimble D. McCutcheon
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gwhite



Joined: 13 Jul 2003
Posts: 58

PostPosted: Wed Mar 01, 2006 09:01    Post subject: Reply with quote

Most 1830s had rolling element crankshaft main bearings. However, P&W figured out that plain bearing were more practical and forgiving so all the later engines used lead/siver plain bearings throughout. That's why the high horespower 1830s and all 2000s used plain bearings.
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