From: firstname.lastname@example.org (Mike Neus) Organization: Texas Instruments Date: 29 Jul 96 02:29:38 References: 1 2 Followups: 1
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In article <airliners.1996.1266@ohare.Chicago.COM>, email@example.com says... > >Karl says: >>There were some Stage III 727 proposals that involved replacing the >>#1 and #3 engines (with RR Tays, I think) while leaving the JT8D in >>the #2 position so as to avoid the significant expense of modifying >>the S-duct or its intake, but to my knowledge it's not been done. ><snip> >>I'd be very surprised to see any airline willing to operate a type >>with two different engines on the same airframe. The maintenance >>folks would be incredibly irritated by such a monster! > >This mod was offered by Valsan. It involved replacing the two outboard >engines with JT8D-200 series and hushkitting the center engine. The >thrust reverser was eliminated from the center engine in the process. >Several of these mods were sold. Delta may have been a customer. It >really improved performance. Valsan has since gotten out of this business >by selling it to someone else (sorry, can't remember who). Since many >airlines operate both 727s and MD-8X, the engine mix might not have been >too difficult to deal with. Hmmm, that brings up another interesting point. Arn't the center engines on DC-10/MD11 and LT-1011 aircraft different from the under wing engines? Ya, all three are probably made by the same company, but are they different none the less?