Pietenpol-List: Side by Side Air Camper
Posted: Fri Jul 31, 2009 5:34 pm
Original Posted By: "K5YAC"
Jeff wrote->One of the biggest performance improvements we've ever seen>was obtained by switching to a Cloudcars semi-scimitar prop,>76x38. We have been very happy with it. Best climb with old>prop was ~750 fpm. Under same or similar conditions, the new>prop gives>1000 fpm.But Jeff, aren't you running a C75 engine? Jim has an A65and that prop probably isn't right for him. Did I recallincorrectly about your engine? True enough that the C75 willdevelop full rated power at 2275 RPM and the A65 at 2300, butthat's a 10 HP difference at roughly the same RPM so your76x38 is probably too much prop for the 65. Or maybe you weresuggesting a switch to a Cloudcars prop as a brand, notnecessarily the same diameter/pitch?Oscar ZunigaAir Camper NX41CCnow A75 poweredSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________Subject: Pietenpol-List: Side by Side Air Camper
Jeff wrote->One of the biggest performance improvements we've ever seen>was obtained by switching to a Cloudcars semi-scimitar prop,>76x38. We have been very happy with it. Best climb with old>prop was ~750 fpm. Under same or similar conditions, the new>prop gives>1000 fpm.But Jeff, aren't you running a C75 engine? Jim has an A65and that prop probably isn't right for him. Did I recallincorrectly about your engine? True enough that the C75 willdevelop full rated power at 2275 RPM and the A65 at 2300, butthat's a 10 HP difference at roughly the same RPM so your76x38 is probably too much prop for the 65. Or maybe you weresuggesting a switch to a Cloudcars prop as a brand, notnecessarily the same diameter/pitch?Oscar ZunigaAir Camper NX41CCnow A75 poweredSan Antonio, TXmailto: taildrags(at)hotmail.comwebsite at http://www.flysquirrel.net________________________________________________________________________________Subject: Pietenpol-List: Side by Side Air Camper