---------------------------------------------------------- Glasair-List Digest Archive --- Total Messages Posted Thu 06/14/12: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:22 AM - Re: AOA can't target stall? (Alpha Systems AOA) ________________________________ Message 1 _____________________________________ Time: 10:22:43 AM PST US Subject: Glasair-List: Re: AOA can't target stall? From: "Alpha Systems AOA" I'm glad to have a conversation about angle of attack. This is a topic that needs to have much more exposure. Just to clarify, my last post did not state AOA could not target stall. What I did say is that Alpha Systems AOA does not target stall but rather Optimum Alpha Angle. Optimum Alpha is a slow flight attitude, in which the aircraft is not climbing nor sinking, roughly 1.25-1.3 Vso. It is here that the aircraft still has full control surface authority and is still safely maneuverable. At Alpha Angles above this, control surface authority begins to diminish and the plane moves closer to stall. The way the system works is, it's calibrated through the Alpha ranges from zero differential pressure to Optimum Alpha(OAA) to Cruise(level flight) Alpha. And indeed this system will positively identify and display stall for any type airplane everytime, consistantly. You are right, you do need to know what your angle of attack is and how much lift is available to you and Alpha Systems AOA does this better than any other. -------- Chris Crosby-CFI, CFII, CSIP Sales/Technical Support Alpha Systems AOA 763-506-9990 or 877-571-3770 ext.-205 chrisc@depotstar.com www.alphasystemsaoa.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=375656#375656 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message glasair-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Glasair-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/glasair-list Browse Digests http://www.matronics.com/digest/glasair-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.