---------------------------------------------------------- Rocket-List Digest Archive --- Total Messages Posted Mon 07/02/07: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:35 AM - Re: Aerocomposites propellers (LesDrag@aol.com) ________________________________ Message 1 _____________________________________ Time: 08:35:33 AM PST US From: LesDrag@aol.com Subject: Re: Rocket-List: Aerocomposites propellers Hi Gary, For a standard CS propeller, the blade should have about a 10 to 14 degree pitch at about 9 inches from the tip. There should be no oil pressure to the propeller with the engine stopped. The standard propeller goes to low pitch without oil pressure. The counterweighted blade propeller goes to high pitch without oil pressure. A standard propeller shouldn't "stick" in high pitch unless something bad happened inside the propeller hub. Regards, Jim Ayers In a message dated 07/01/2007 6:52:18 P.M. Pacific Daylight Time, glcasey@adelphia.net writes: --> Rocket-List message posted by: "glcasey" I have a parallel-valve IO540 with a 3-blade Aerocomposites prop (sorry, not on a Rocket, but I understand this is a common engine-prop combination). During the last runup the rpm came down when cycling the prop, but didn't go back up. After I parked it I noticed that the prop tips have a pitch of about 29 degrees, which seems to be more than previously. I'm thinking something is wrong with the prop. Anyone know the degree of pitch at the tips when in flat pitch position? I recall that it was practically zero, but I didn't measure it. Any suggestions? I am using the Czech governor and it has performed perfectly - so far, at least. Thanks for any information from this Lancair ES flyer. -------- Gary Casey ************************************** See what's free at http://www.aol.com. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rocket-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Rocket-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rocket-list Browse Digests http://www.matronics.com/digest/rocket-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.