---------------------------------------------------------- Pulsar-List Digest Archive --- Total Messages Posted Wed 11/03/21: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 09:42 AM - Please Make A Contribution To Support Your Lists (Matt Dralle) 1. 12:40 PM - SD-8 (BARRY NORMAN) ________________________________ Message 0 _____________________________________ Time: 09:42:45 AM PST US From: Matt Dralle Subject: Pulsar-List: Please Make A Contribution To Support Your Lists Dear Listers, There is no advertising income to support the Matronics Email Lists and Forums. The operation is supported 100% by your personal Contributions during the November Fund Raiser. Please make your Contribution today to support the continued operation and upgrade of these services. You can pick up a really nice gift for making your Contribution too! You may use a Credit Card or Paypal at the Matronics Contribution Site here: https://matronics.com/contribution or, you can send a personal check to the following address: Matronics / Matt Dralle 581 Jeannie Way Livermore, CA 94550 Thank you in advance for your generous support! Matt Dralle Matronics Email List and Forum Administrator RV-4/RV-6/RV-8 Builder/Rebuilder/Pilot ________________________________ Message 1 _____________________________________ Time: 12:40:33 PM PST US From: BARRY NORMAN Subject: Pulsar-List: SD-8 Hello Folks, Hope all is well out there with our fellow Pulsar friends. Just wanted to post a little information on a modification I made a couple of weeks ago that really improved the usability of electronics aboard the Pulsar. Over the last several years I replaced the standard steam gauges with dual GRT Horizons, AHRS and magnetometers. Flying with the new equipment has been great but has pushed the electrical output of the Rotax 912s to it's limit's. Often I would see up to 16 or more amps pulled while using the autopilot with no external lights being used. This would sometimes cause sensor warning form the EIS due to low voltage creating bad readings. As a result, I installed an SD-8 vacuum pump pad alternator and a secondary electrical bus that feeds alternate power inputs for the two Horizons, AHRS and com. It only produces 8 amps but was enough to lower the load on the main bus to alleviate low voltage issues. I added a small second battery on the secondary bus as well. The equipment automatically pulls from the bus with the highest voltage and creates another backup in case of main bus electrical failure. I rarely see more than 8 amps pulled off the main bus now. The SD-8 is just over $600 on aircraft spruce and comes with most of the items needed for installation with the exception of a few breakers. It's about the same size as a vacuum pump and bolts in it's place. Hope this might help a few of you guys out there having similar issues. Cheers, Barry Norman ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pulsar-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pulsar-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/pulsar-list Browse Digests http://www.matronics.com/digest/pulsar-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.