---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 08/26/16: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:01 AM - Re: Re: Battery charging (Robert L. Nuckolls, III) 2. 09:21 AM - Progress on Wiring Diagrams (Art Zemon) 3. 09:31 AM - Re: Connectors for Wing Roots (ashleysc@broadstripe.net) 4. 11:48 AM - Wire Clamps (Art Zemon) 5. 12:14 PM - Re: Wire Clamps (Neal George) 6. 12:48 PM - Re: Wire Clamps (Rene) 7. 01:35 PM - Re: Wire Clamps (Kent or Jackie Ashton) 8. 08:23 PM - Re: EFIS power switch - part 2 (Scot) ________________________________ Message 1 _____________________________________ Time: 07:01:14 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Battery charging At 03:05 PM 8/25/2016, you wrote: > >So, I put the ammeter in line as you suggested. Interesting >results. With everything in the cockpit on, even the transponder, >engine monitor and all the lites it only drew 3.1 amps. Good data. > Add 3 more when transmitting. Only things not included were the > strobes and nav lites as the wing tips are sitting on the bench. > That's the first I've heard of the SD-8. Looks like nice backup system. Do you have a copy of the 'Connection? You can download it at http://tinyurl.com/pt97pha or purchase a paper copy at http://tinyurl.com/cgr42l5 Suggest you review chapter 17 and Figure Z13/8 in the back of the book. Your existing battery, if prudently maintained, is the most reliable source of energy in your airplane. See chapter on batteries. Using the vacuum pump pad for something besides a parking place for a cover plate makes a great deal of sense in an all-electric airplane. Z13/8 has been in publication now for about 20 years so it has a well received track record. If the original design calls for a battery in the back, I would seriously consider putting your 680 back there. You've got an all electric panel . . . Z13/8 offers system reliability on a par with Lears and King Airs. If you need ground power for development and checkout work, consider an ac mains power supply. http://tinyurl.com/zwmvcpp All the machinations involved in smoothly integrating a second, small battery in a remote location will go away . . . If it were my airplane, it would be architectured with Z-13/8. Bob . . . ________________________________ Message 2 _____________________________________ Time: 09:21:20 AM PST US From: Art Zemon Subject: AeroElectric-List: Progress on Wiring Diagrams Folks, With your help and advice, I have made a lot of progress on the wiring diagrams for my BD-4C. =8B N114AC Wiring Diagrams =8B I placed an order for about 700 feet of wire today. I am sure looking forward to spending time *building* instead of *designing*. Cheers, -- Art Z. -- http://CheerfulCurmudgeon.com/ *"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel* ________________________________ Message 3 _____________________________________ Time: 09:31:22 AM PST US From: ashleysc@broadstripe.net Subject: Re: AeroElectric-List: Connectors for Wing Roots Not familiar with "handshake connectors." Please amplify and provide mfg. a nd pt. no. Cheers!=C2-=C2- Stu. ----- Original Message ----- From: "Bob Verwey" Sent: Thursday, August 25, 2016 5:11:48 AM Subject: Re: AeroElectric-List: Connectors for Wing Roots handshake connectors On Thursday, 25 August 2016, Art Zemon < art@zemon.name > wrote: >From the The-Nice-Thing-About-Standards-Is-There-Are-So-Many-To-Choose-From Department: I need to choose the connectors to use at the wing roots of my BD-4C. The w ings will come off annually for inspection, which means at least one cycle per year for these connectors. There was a thread here recently about Molex connectors being good for long term use but not designed for many operatio nal cycles. That has me shying away from Molex because I don't understand t he failure mode, especially how to recognize a connector that is nearing en d-of-life. The AMP CPC series looks solid but seems kind of pricey for a device that I need to operate just once per year http://www.aircraftspruce.com/categories/aircraft_parts/ap/menus/el/cableca bleaccessories_cpc.html Is that CPC right choice? Is there something else that you would recommend? I need 9 pins in the left wing. 2 @ 10 amps and all of the others are low c urrent. I need 6 pins in the right wing, all low current. Thanks, =C2- =C2- -- Art Z. -- http://CheerfulCurmudgeon.com/ "If I am not for myself, who is for me? And if I am only for myself, what a m I? And if not now, when?" Hillel -- Best... Bob Verwey ________________________________ Message 4 _____________________________________ Time: 11:48:59 AM PST US From: Art Zemon Subject: AeroElectric-List: Wire Clamps Folks, In poking around the aeroelectric.com website, I ran across this photo : In the top, right is a nylon bracket holding a zip-tie which holds the wires. I thought that pretty much the only acceptable clamp for wires in an airplane is Ye Ole MS21919 cushion clamp. Please educate me. -- Art Z. -- http://CheerfulCurmudgeon.com/ *"If I am not for myself, who is for me? And if I am only for myself, what am I? And if not now, when?" Hillel* ________________________________ Message 5 _____________________________________ Time: 12:14:28 PM PST US From: Neal George Subject: RE: AeroElectric-List: Wire Clamps QXJ0IOKAkw0KVXNpbmcgemlwLXRpZXMgb24gd2lyZSBidW5kbGVzIGlzIG5vdCBhIHByb2JsZW0u ICBUaGUgcHJvYmxlbSBpcyB1c2luZyB6aXAtdGllcyB0byBzZWN1cmUgd2lyZSBidW5kbGVzIChv ciBhbnl0aGluZyBlbHNlKSB0byBjcml0aWNhbCBzdHJ1Y3R1cmUsIGxpa2UgZW5naW5lIG1vdW50 IHR1YmluZy4gIERpcnQgYW5kIG9pbCBjb2xsZWN0IHVuZGVyIHRoZSBueWxvbiBhbmQgbWFrZXMg YSBwcmV0dHkgZ29vZCBzYXcuICBJdCBpcyBuZWFybHkgaW1wb3NzaWJsZSB0byB0aWdodGVuIGEg emlwLXRpZSB0byB0aGUgcG9pbnQgdGhhdCByZWxhdGl2ZSBtb3ZlbWVudCBpcyBlbGltaW5hdGVk LiAgT3ZlciB0aW1lLCB2aWJyYXRpb24gb2YgdGhlIHBhcnRzIHdvcmtpbmcgdGhlIGdyaXQgY2Fu IGN1dCB0aHJ1IHRoZSBzdHJ1Y3R1cmUuDQoNCk55bG9uIHNhZGRsZXMgYW5kIHN0YW5kLW9mZnMg c2ltaWxhciB0byB0aG9zZSBzaG93biBpbiB0aGUgcGhvdG8gY2FuIGJlIGZvdW5kIGluIG1hbnkg Y2VydGlmaWNhdGVkIGFpcmNyYWZ0LCBidXQgdGhleSBhcmUgdXN1YWxseSBzY3Jld2VkLCBib2x0 ZWQsIHJpdmV0ZWQgb3IgY2xpcHBlZCB0byBzaGVldCBtZXRhbCBjb21wb25lbnRzLg0KDQpuZWFs DQoNCkZyb206IG93bmVyLWFlcm9lbGVjdHJpYy1saXN0LXNlcnZlckBtYXRyb25pY3MuY29tIFtt YWlsdG86b3duZXItYWVyb2VsZWN0cmljLWxpc3Qtc2VydmVyQG1hdHJvbmljcy5jb21dIE9uIEJl aGFsZiBPZiBBcnQgWmVtb24NClNlbnQ6IEZyaWRheSwgQXVndXN0IDI2LCAyMDE2IDE6NDcgUE0N ClRvOiBhZXJvZWxlY3RyaWMtbGlzdEBtYXRyb25pY3MuY29tDQpTdWJqZWN0OiBBZXJvRWxlY3Ry aWMtTGlzdDogV2lyZSBDbGFtcHMNCg0KRm9sa3MsDQoNCkluIHBva2luZyBhcm91bmQgdGhlIGFl cm9lbGVjdHJpYy5jb208aHR0cDovL2Flcm9lbGVjdHJpYy5jb20+IHdlYnNpdGUsIEkgcmFuIGFj cm9zcyB0aGlzIHBob3RvPGh0dHA6Ly9hZXJvZWxlY3RyaWMuY29tL1BpY3R1cmVzL0dyb3VuZGlu Zy9NVkMtNjk5WC5KUEc+Og0KDQpJbiB0aGUgdG9wLCByaWdodCBpcyBhIG55bG9uIGJyYWNrZXQg aG9sZGluZyBhIHppcC10aWUgd2hpY2ggaG9sZHMgdGhlIHdpcmVzLiBJIHRob3VnaHQgdGhhdCBw cmV0dHkgbXVjaCB0aGUgb25seSBhY2NlcHRhYmxlIGNsYW1wIGZvciB3aXJlcyBpbiBhbiBhaXJw bGFuZSBpcyBZZSBPbGUgTVMyMTkxOSBjdXNoaW9uIGNsYW1wLiBQbGVhc2UgZWR1Y2F0ZSBtZS4N Cg0KICAgIC0tIEFydCBaLg0K ________________________________ Message 6 _____________________________________ Time: 12:48:22 PM PST US From: "Rene" Subject: RE: AeroElectric-List: Wire Clamps When I want to connect something and I am worried about wear or fit, I use F-4 Tape. For example, a couple of wraps around the motor mount and you can just zip tie away. The zip tie will embed in the rubber and never move again. Easily removed if need be since there is no adhesive. There are a lot of uses for this stuff.. If you have never used a fusion tape before..caution, you will quickly become addicted to its use. It is fun to play with also. Not cheapbut a little goes a long way. Another use for me is for strain relief for connectors. I wrap it around the wires and then clamp the back shell around the bundle. Great for when you have only couple of wires going into a DB-25 connector. http://www.f4tape.com/?gclid=CIrJ6ffp384CFQUJaQodXN0PTA You can purchase it on Amazon. Rene' 801-721-6080 From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Neal George Sent: Friday, August 26, 2016 1:10 PM Subject: RE: AeroElectric-List: Wire Clamps Art =93 Using zip-ties on wire bundles is not a problem. The problem is using zip-ties to secure wire bundles (or anything else) to critical structure, like engine mount tubing. Dirt and oil collect under the nylon and makes a pretty good saw. It is nearly impossible to tighten a zip-tie to the point that relative movement is eliminated. Over time, vibration of the parts working the grit can cut thru the structure. Nylon saddles and stand-offs similar to those shown in the photo can be found in many certificated aircraft, but they are usually screwed, bolted, riveted or clipped to sheet metal components. neal From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Art Zemon Sent: Friday, August 26, 2016 1:47 PM Subject: AeroElectric-List: Wire Clamps Folks, In poking around the aeroelectric.com website, I ran across this photo : In the top, right is a nylon bracket holding a zip-tie which holds the wires. I thought that pretty much the only acceptable clamp for wires in an airplane is Ye Ole MS21919 cushion clamp. Please educate me. -- Art Z. ________________________________ Message 7 _____________________________________ Time: 01:35:23 PM PST US From: Kent or Jackie Ashton Subject: Re: AeroElectric-List: Wire Clamps > On Aug 26, 2016, at 2:47 PM, Art Zemon wrote: > xcI thought that pretty much the only acceptable clamp for wires in an airplane is Ye Ole MS21919 cushion clamp. Please educate me. What you use on an Experimental only has to be safe, or "in a safe condition for flight=9D, as your operating limits will make you certify. MS21919 clamps are good but somewhat of a PIA to use. To secure wires to an engine mount tube you need two of them-double trouble. (Tip: close them with a loop of safety wire, insert the screws, then clip-off the safety wire). To show what can be done, here I cut small squares of rubber or silicone baffle material, wrap it around the wires and secure the bundle with a tie-wrap. Or I have made little fiberglass mounts out of scrap UNI, epoxied them where I needed them, and secured wires with tie-wraps. It won=99t win any awards but it is safe -Kent ________________________________ Message 8 _____________________________________ Time: 08:23:36 PM PST US Subject: AeroElectric-List: Re: EFIS power switch - part 2 From: "Scot" <1975jsa@gmail.com> The total demand of the electrical system exceeds the output of the secondary alternator. By driving the EFIS and Dynon devices to the TCW battery I have more options in the event of of a primary alternator failure. Additionally by disconnected the EFIS from the buss during start up, I eleminate any potential for brownout as well as giving me the option to drive the EFIS with the backup battery for preflight data entry without reducing the starting power of the main battery. 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