---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 06/23/15: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:30 PM - Re: Re: Fw: [Bearhawk] Pacer progress (Robert L. Nuckolls, III) ________________________________ Message 1 _____________________________________ Time: 06:30:27 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Fwd: [Bearhawk] Pacer progress At 12:19 PM 6/22/2015, you wrote: Panel is almost ready to instal. Dimmer pot for the Ei hardware should be here today. Head set jacks extended. A few zip ties remain. On the subject of stuck starter solenoids. On my list of pros and cons for locating the starter contactor under the seat... How easy is it to get at if I need to whack it with something or disconnect it from the battery? Normally, shuts off the battery master to stop the fault . . . so that it can be dealt with in a relaxed manner. Deciding the trade off... More wire up the firewall to a solenoid location accessible with the cowl open. Or deal with pulling the seat. Ideally, one chooses a starter contactor designed to minimize the sticking phenomenon . . . THEN one also MAINTAINS the battery in a condition that (1) provides design-goal-driven endurance requirements from which the happy condition (2) arises: Risks for starter contactor sticking are significantly reduced. Marv and I spoke yesterday about the avionics master. When the PM3000 and the Sandia transponder was installed. The avionics guy told Marv and I to pull the breakers for them before starting the engine. Don't recall the reason. I'll bet he doesn't have one . . . beyond the notion that 'everybody does it' . . . Further, pulling a breaker is not accepted operational practice . . . you won't find that behavior in any TC aircraft POH. If shutting a thing OFF for cranking operations is a good thing to do . . . then the reason is probably NOT something you want to spend money on. If the battery is nearly dead, low voltage....start contactor just asking to be stuck. Or brown out. A good battery shouldn't pull down below 10.8 volts under a load. What if it does due to poor health or some other reason. Being in the middle of now where. Many many times waiting for the temperature to reach 25 below zero before the first flight. Decided the avionics master is a good thing for me. BINGO! Routine preventative maintenance of the battery is the time honored, demonstrated recipe for comfortable completion of missions to PREDICTABLE compliance with design goals while minimizing miseries. There is NO GOOD REASON to be "in the middle of nowhere" with a soggy battery . . . there are lots of bad reasons . . . mostly founded in the owner/operators's less than responsible attitudes toward battery maintenance. Being short on fuel 'in the middle of nowhere' would get you many raised eyebrows around a table of suds and pizzas . . . sadly, being caught in-the-wild with a soggy battery is all too often simply attributed to 'bad luck'. I suggest that it is easy to make it NOT so . . . Bob . . . ------------------------------------------------------------------------------------- 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.