---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 05/16/15: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:40 AM - Re: Tachometer (user9253) 2. 04:35 PM - Re: Re: Alternator Position (Joe Motis) ________________________________ Message 1 _____________________________________ Time: 08:40:43 AM PST US Subject: AeroElectric-List: Re: Tachometer From: "user9253" Even if the amplitude of the square wave from the Rotec tachometer is less than 12 volts, someone on this list can design a simple transistor amplifier that will boost the voltage above the minimum required for the Dynon D-180 tachometer input. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=442167#442167 ________________________________ Message 2 _____________________________________ Time: 04:35:25 PM PST US Subject: Re: AeroElectric-List: Re: Alternator Position From: Joe Motis This question is for Bob- In the news today it is being reported that a passenger hacked in to the planes flight controls and made changes, using the entertainment system network. Do you feel this is possible? Anyone else have input on this? On Sat, May 9, 2015 at 4:28 AM, racerjerry wrote: > > As Bob says, most ball bearings still have significant performance for thrust as well as axial loads. After installation, check for bearing noise using a stethoscope (cheap rod in ear type). Compare it with noise from the upper bearing. Afterward, occasionally listen for increased noise (growling or clicking) at the lower bearing. > > If problems arise with the lower bearing, substitute an Angular Contact Bearing which is designed to better accept both radial and thrust loads. Fafnir 7000 series comes to mind. Any good bearing supply house should be able to help. Remember that angular contact bearings are directional and are designed for thrust load in one direction only. If you view the bearing, one side will have less spacing between races; that is the side which will accept increased thrust loads. > > -------- > Jerry King > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=441923#441923 > > ------------------------------------------------------------------------------------- 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.