Pietenpol-List: differeneces between C75 and C85

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Pietenpol-List: differeneces between C75 and C85

Post by matronics »

Original Posted By: Michael Perez
Also from my upcoming article in Contact!,referring to the jump from the A-series (O-170)to the C-series (O-190):================The C75 and C85 introduced cylinders and pistonswith a new bore diameter of 4-1/16 to the series,increasing displacement to 188 cubic inches and thusthe O-190 designation. With the increased bore anddisplacement, the C75 could achieve rated power atan A65-like engine speed of 2275 RPM. The jump fromthe C75 to the C85 was very easily achieved by simplychanging the venturi and main jet in the Strombergcarb (or by using an approved model of Marvel-Scheblercarb similar to those that would later be used in theC90 and O-200 engines) and operating the engine at2575 RPM.===================Oscar ZunigaAir Camper NX41CCSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net ________________________________________________________________________________Date: Fri, 12 Mar 2010 07:13:03 -0800 (PST)
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Post by matronics »

Original Posted By:
Thanks All,Since the price of spars are the same at Aircraft Spruce I have decided togo with the 1 inch spar and do the routing. My order is in for the ribmaterials and looking forward to getting started.Myron AndersonDanville, INSubject: Re: New builder already needs help
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Post by matronics »

Original Posted By: Myron Anderson <myronanderson1(at)comcast.net
Fri Mar 12 - 3:24 AMMyron,Went with the 1" for authenticity. (Purist) The routing surely creates a LOT of expensive sawdust to sweep up. Dan HelsperPoplar Grove, IL.-----Original Message-----
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