---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 08/08/13: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:18 AM - Re: KT 76 Installation Manual (Nati Niv) 2. 07:33 AM - KT76A/78A Manual (Ian Crowe) 3. 09:48 PM - Rotax 912 UL alternator drop-out (Paul Kuntz) ________________________________ Message 1 _____________________________________ Time: 04:18:28 AM PST US Subject: Re: AeroElectric-List: KT 76 Installation Manual From: Nati Niv Here ya go, good luck On Wed, Aug 7, 2013 at 10:14 PM, Matt Stecher wrote : > I am in need of the KT 76 transponder installation manual since I can=92 t > seem to find it any place. **** > > ** ** > > I talked with BendixKing today and for some reason they can no longer > share it. I did find the pinout diagram that is on the Aeroelectric site, > but I would like the entire manual to be sure that I don=92t miss anythin g.* > *** > > ** ** > > Thanks everyone and fly safe,**** > > Matt Stecher**** > > Varieze N54EG rebuild**** > > * > =========== =========== =========== =========== > * > > ________________________________ Message 2 _____________________________________ Time: 07:33:16 AM PST US From: Ian Crowe Subject: AeroElectric-List: KT76A/78A Manual I also have one. Bob if you want it to copy it is yours. Tell me where to send it. Ian B. Crowe LNC 2 C-FKRO ________________________________ Message 3 _____________________________________ Time: 09:48:03 PM PST US Subject: AeroElectric-List: Rotax 912 UL alternator drop-out From: Paul Kuntz I have a homebuilt Pipistrel Sinus with a Rotax 912 UL that I flew to Oshkosh and back last week. The panel has a dual Dynon Skyview display with two-axis autopilot, plus radio and transponder. The total electrical load with everything running is 7 to 8 amps. Occasionally it can go to 9 or 10 amps if I'm charging cell phone and iPad en route. I'm pretty confident that I have the electrical system wired so that the ammeter is measuring the total electrical load. The alternator dropped out once on the outbound trip, but came back after removing the iPad charging load. The symptom was a voltage drop from 13.8 volts to 12.5 volts, which seemed strange. On preflight the voltage may read that high for a minute or so on a freshly-charged battery, but it quickly drops to 12.2 or 12.1 volts. In flight, the voltage would drop to 12.5 volts and stay there for several minutes. I would think that if the alternator had failed, I'd see the voltage drop to the same 12.1 volts that I see on preflight, and keep dropping slowly. I can't see why it would drop to 12.5 volts and stay there, unless the voltage regulator is failing in a way that I'm not familiar with. The alternator dropped out (same symptoms) a few times on the trip back, but by reducing the load to 3 amps (one Skyview display, radio and transponder), it stayed on line except for awhile when it seemed that the mid-day sun shining on the dashboard was adding extra heat behind the panel. That time we brought it back by directing cool air from a fresh air vent forward toward the spot where the voltage regulator is mounted inside the cabin on the back side of the firewall. So the problem seems to be heat-related. Does this make sense? The Rotax alternator is supposed to be rated for 18 amps, and able to handle a steady load of 14 amps easily. Does the Ducati regulator have a thermal self-protect cutout? Do I perhaps have a regulator that is ready to fail completely, or should I just put an avionics cooling fan behind the panel to get the air moving?Any other ideas? Regards, Paul Kuntz ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-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/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-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.