---------------------------------------------------------- Lightning-List Digest Archive --- Total Messages Posted Wed 09/19/12: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:45 AM - Elevator Trim Control Horn (MP) ________________________________ Message 1 _____________________________________ Time: 05:45:44 AM PST US From: "MP" Subject: Lightning-List: Elevator Trim Control Horn Gents I'm building Lightning # 143 and struggle with a little thing. Could somebody tell me what the elevator trim deflection should be? >From the manual it should be 30deg down but how much is it up? The trim servo has a travel of 17mm with my trim tap cut to the manual measurements it is not possible to a have a control horn similar to the one in the manual and deflection +- of 30deg. As by my calculation, if the pushrod attach point would be on the bottom skin of the trim tap the travel of the servo is still not enough for +- 30deg. My Trim tap is at the trailing edge 15mm thick => requires 10mm travel for 30deg if attached on the bottom skin. So what is the solution? The next servo up with 26mm travel would work? Or is only a down travel required? I guess also a very short control horn is not very stable as the angel of control is very low (I would have on my RC model plane bigger horns then on the full size) if this makes sense? Any ideas very appreciated thanks Michael ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lightning-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Lightning-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/lightning-list Browse Digests http://www.matronics.com/digest/lightning-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.