---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 11/17/15: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:47 AM - Re: Re: Autopilot Servos (William Daniell) ________________________________ Message 1 _____________________________________ Time: 06:47:12 AM PST US Subject: Re: Europa-List: Re: Autopilot Servos From: William Daniell Bud thanks sorry I didnt reply...on the road. Is there any reason for the 3:2 arm on option no2 for the pitch servo. Would it be possible just to build a "bridge" over the rudder wires to bring the servo up to the right level? Will William Daniell LONGPORT +57 310 295 0744 On Mon, Nov 9, 2015 at 10:30 PM, Bud Yerly wrote: > Will, > I=99m to blame for the install of servos under the passengers feet. I did > this in 1999 on 419PL when I started building it. I don=99t do thi s any > longer as taller passengers tended to dislike this loss of foot room as i t > puts their knees higher than comfortable while flying along. OK for thos e > who fly with their feet on the rudder pedals or are a standard sized 5 =99 > 10=9D. Also, these are heavy servos (Navaid, Blue Mountain, etc.) and weigh > about 5 pounds. If you put the battery in the front, watch the weight in > the cockpit. Strive for the 60-61 inch empty weight CG. You=99ll have to > keep the panel light. These are very long servos also, so in a crash, ju st > unscrew it and it makes an excellent club for survival. > > This setup under the feet also is a bit tough with the Garmin, Dynon, > TruTrack and GRT servos. These light weight servos (about 2.5 pounds) ar e > very good also, plus they have a smaller footprint, but they are taller. > Reducing the foot well even more. > > Here are two other ideas I have used for quite some time. > 1st is a design I made to put the servo behind the baggage bay. See the > drawing. It is dumb simple. It is a 3 to 2 arm on a bearing and two pus h > rods so as to allow the servo to move about 45 degrees. Bob Berube and I > consulted on this and I have made it my standard for retrofits where the > only place to put the servo is behind the baggage bay. It can be install ed > after the top is on in a finished airplane by access through the D panel. > It is not comfortable. > > In all my aircraft, the roll servo goes under the pax seat. Make a simpl e > metal plate of .060 aluminum and four nut plates to the face of the inboa rd > seat hole. Attach the servo to it. Make an arm and attachment bracket f or > the stick. Fab a fiberglass cover to prevent the pax from impacting the > arm. > > 2nd is a simple extension to the stab tube attachment point and hook up. > Pretty simple, easy to bolt up if your plane has access panels which are > positioned properly. I always have three access holes. > A 4 inch sight hole for the MAC trim servo, a 6 inch abeam the mass > balance arm as in the book. I then put on the port side a single 6 inch to > access below the pitch push rod to stab tube attachment. If you have tho se > small Europa mandated sized holes for drug addicted anorexic maintainers, > this may be painful to try unless installed during the build and access > holes are well planned. > > Always plan your servos so they cannot go over center and jam the > controls. Many servos come with limit arms to prevent this, use them. T he > limit arms typically allow 45 degrees of movement max. Why use 45 degree s > or close to that is to allow the servo to have a larger movement as the > clutches and servo settings do not work well when the servo is limited to a > full throw of less than 30 degrees. > > I have better drawings in my archives, but it will be a while to get them > as my servo was hit by lightning and fried so it needs to have its hard > drive recovered. > > > [image: Autopilot Servo Attachment] > Just a thought as legroom in the Europa is at a premium. > > Regards, > > Bud Yerly > Custom Flight Creations, Inc. > > > *From:* William Daniell > *Sent:* Monday, November 09, 2015 4:05 PM > *To:* europa-list@matronics.com > *Subject:* Re: Europa-List: Re: Autopilot Servos > > > Excellent thanks. > Will > On Nov 6, 2015 1:16 PM, "Alfred Buess" wrote: > >> >> William, >> Attached is a picture of the Navaid Autopilot servo mounted on the >> passenger side footwell of my Europa. Pretty simple installation. >> Regards, Alfred >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=448888#448888 >> >> >> >> >> Attachments: >> >> http://forums.matronics.com//files/navaid_servo_151.jpg >> >> >> >> >> ========== >> br> fts!) >> r> > w.buildersbooks.com" rel="noreferrer" target="_blank"> >> www.buildersbooks.com >> rel="noreferrer" target="_blank">http://www.matronics.com/contributi on >> -Matt Dralle, List Admin. >> ========== >> pa-List" rel="noreferrer" target="_blank"> >> http://www.matronics.com/Navigator?Europa-List >> ========== >> FORUMS - >> eferrer" target="_blank">http://forums.matronics.com >> ========== >> b Site - >> -Matt Dralle, List Admin. >> rel="noreferrer" target="_blank">http://www.matronics.com/contributi on >> ========== >> >> >> >> ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-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/europa-list Browse Digests http://www.matronics.com/digest/europa-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.