---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 01/13/04: 24 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:30 AM - Web Page - Fuse Equivalency and Klixon Circuit Breaker "Dissection" (Bob Gibson) 2. 05:21 AM - Re: Courtesy Light Timer (Brett Ferrell) 3. 06:21 AM - Re: RV-List: Brass Instrument Screws for MicroAir avionics (Cy Galley) 4. 06:22 AM - Re: Grand Rapids EIS 4000 MAP sensor (Cy Galley) 5. 06:34 AM - Re: Grand Rapids EIS 4000 MAP sensor (Robert L. Nuckolls, III) 6. 06:43 AM - Re: Wire bundling for minimum avionics noise (Robert L. Nuckolls, III) 7. 06:52 AM - Re: SD-8 Feeding E-Bus (Robert L. Nuckolls, III) 8. 06:59 AM - Re: Grand Rapids EIS 4000 MAP sensor (Fiveonepw@aol.com) 9. 07:34 AM - SD-8 Feeding E-Bus followup (Don Boardman) 10. 07:51 AM - Re: RV-List: Brass Instrument Screws for MicroAir avionics (Richard Tasker) 11. 08:37 AM - Re: AeroElectric-List Digest: 14 Msgs - 01/12/04 (confirm please) () 12. 08:54 AM - Re: SD-8 Feeding E-Bus followup (Robert L. Nuckolls, III) 13. 11:08 AM - Re: Re: AeroElectric-List Digest: 14 Msgs - (Dave Morris) 14. 11:45 AM - Re: Re: RV-List: Brass Instrument Screws for MicroAir avionics (Chris Adkins) 15. 11:49 AM - Re: Re: AeroElectric-List Digest: 14 Msgs - 01/12/04 (confirm please) (Chris Adkins) 16. 02:44 PM - Schematic (Boddicker) 17. 05:06 PM - aeroelectric seminar (Steve Mineart) 18. 06:01 PM - Re: aeroelectric seminar (Robert L. Nuckolls, III) 19. 06:11 PM - Ground Bolt? (David Schaefer) 20. 06:51 PM - Re: Buttsplice vs. Solder Heatshrink? (LarryRobertHelming) 21. 07:05 PM - SD-8 Hook up (Don Boardman) 22. 07:14 PM - Re: Ground Bolt? (Lonnie Benson) 23. 08:05 PM - Pyrotechnic actuation (F1Rocket) 24. 10:53 PM - Re: Pyrotechnic actuation (Benford2@aol.com) ________________________________ Message 1 _____________________________________ Time: 04:30:29 AM PST US From: "Bob Gibson" Subject: AeroElectric-List: Web Page - Fuse Equivalency and Klixon Circuit Breaker "Dissection" --> AeroElectric-List message posted by: "Bob Gibson" I'm working on a project with the FAA to establish "equivalency" between the Bussman HKP panel fuse (the glass cartridge design) and the Bussman 15600 fuseblock which uses ATC blade-type fuses. Just for fun, I also "dissected" a Klixon circuit breaker to show the parts count (and complexity). Summary and photos at http://www.stratosaviation.net/CurrentStatusBOBKAT.html?1073933558719 Bob Gibson AA5 - N5826L Clearwater Airpark (CLW) Mobile 727.644.8361 Web www.geocities.com/n5826l ________________________________ Message 2 _____________________________________ Time: 05:21:59 AM PST US From: "Brett Ferrell" Subject: Re: AeroElectric-List: Courtesy Light Timer --> AeroElectric-List message posted by: "Brett Ferrell" Don - I've installed this timer / dimmer into my dome lights from the battery bus on my Velocity. The lights stay on for 15 seconds and then gradually fade to black "theater lighting" style.... http://www.seriousauto.com/electrical/lights-up/index.htm Brett ----- Original Message ----- From: "Don Boardman" Subject: AeroElectric-List: Courtesy Light Timer > --> AeroElectric-List message posted by: Don Boardman > > Hi Bob, > > A while back you talked about wiring a courtesy light(s) from the battery > bus. You mentioned putting the light(s) on a timer. Great idea! Turn on the > light without switching on the master and with a timer, no fear of > accidentally leaving a light on to kill the battery. > I certainly have never done that ! > # > %*&&)(+!. > > At the time of the post you did not elaborate, no particulars, about the > timer itself. How would one go about incorporating such an "automatic" timer > on such a circuit? > > > Thanks, > Don B. > > ________________________________ Message 3 _____________________________________ Time: 06:21:11 AM PST US From: "Cy Galley" Subject: AeroElectric-List: Re: RV-List: Brass Instrument Screws for MicroAir avionics --> AeroElectric-List message posted by: "Cy Galley" Try a hardware store. ----- Original Message ----- From: "Rick Fogerson" Subject: RV-List: Brass Instrument Screws for MicroAir avionics > --> RV-List message posted by: "Rick Fogerson" > > The MicroAir radio and xpdr use 8-36 thread screws which is not common. Does anyone know of a source for these. I need 8 and would prefer countersunk brass screws but might have to consider other if forced to. > Thanks for help, > Rick Fogerson > RV3 wiring > Boise, ID > > ________________________________ Message 4 _____________________________________ Time: 06:22:41 AM PST US From: "Cy Galley" Subject: Re: AeroElectric-List: Grand Rapids EIS 4000 MAP sensor --> AeroElectric-List message posted by: "Cy Galley" Use a steel bulkhead fitting on the line so the plastic case is protected. ----- Original Message ----- From: "Rick Fogerson" Subject: AeroElectric-List: Grand Rapids EIS 4000 MAP sensor > --> AeroElectric-List message posted by: "Rick Fogerson" > > Grand Rapids recommends placing the MAP sensor in the cockpit because it uses a plastic case. I'm not going to because I've gone to a lot of effort and some $'s to protect the cockpit from engine fires. Placing the sensor in the cockpit means you would have to bring a manifold pressure hose through the firewall. Has anyone else had any good or bad experience with this sensor in the engine compartment. > thanks, > Rick Fogerson > Boise, ID > RV3 wiring > > ________________________________ Message 5 _____________________________________ Time: 06:34:39 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Grand Rapids EIS 4000 MAP sensor --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 10:27 PM 1/12/2004 -0700, you wrote: >--> AeroElectric-List message posted by: "Rick Fogerson" > >Grand Rapids recommends placing the MAP sensor in the cockpit because it >uses a plastic case. I'm not going to because I've gone to a lot of >effort and some $'s to protect the cockpit from engine fires. Placing the >sensor in the cockpit means you would have to bring a manifold pressure >hose through the firewall. Has anyone else had any good or bad experience >with this sensor in the engine compartment. >thanks, >Rick Fogerson >Boise, ID >RV3 wiring It would be interesting to know the pedigree of the MAP sensor . . . MOST products designed for this application live very happily under the hood of a car . . . Bob . . . ________________________________ Message 6 _____________________________________ Time: 06:43:04 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Wire bundling for minimum avionics noise --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 11:13 PM 1/12/2004 -0700, you wrote: >--> AeroElectric-List message posted by: "Rick Fogerson" > >Hi Bob, >I've read your book Re what wires can be bundled together several times >and I'm not completely sure if what I have done will avoid noise in the >avionics. Could you take a look and see if it appears okay? I have an >RV3 with 2 batteries, battery buses, contactors, and dual Electonic >Ignition relays in the back. Essentially there are three bundles in >question as follows: > >1) Starter power (2AWG), all ground block wires, and all LR-3 voltage reg. >wires bundled. > >2) All engine sensor wires (EGT, CHT, Oil Temp/Press, Fuel Press, and MAP) >bundled. > >3) Avionics, pump, and auto pilot power and ground wires, Ess Bus sw, >MicroAir radio and xpdr shielded/twisted pairs and PTT twisted pair to >head phones and microphones. I'm most uncertain of this one! Looks good. I'll suggest your risks of noise from bundle-to-bundle coupling are quite low . . . >Thanks Bob for all your help. I'm just about finished with wiring and >couldn't have done it with out you! Pleased to be of assistance. Bob . . . ----------------------------------------- ( Experience and common sense cannot be ) ( replaced with policy and procedures. ) ( R. L. Nuckolls III ) ----------------------------------------- ________________________________ Message 7 _____________________________________ Time: 06:52:19 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: SD-8 Feeding E-Bus --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 10:05 PM 1/12/2004 -0500, you wrote: >--> AeroElectric-List message posted by: Don Boardman > >Hi Bob, > >Hope you had fun at your weekend seminar and all went well. > >In figure (Z-13) The SD-8 section shows a #12 wire running from the >regulator via the capacitor to a 701 relay. There is no need to protect this >wire? > > >The relay has the OVM-14 connected. No Diode needed? > > >The #12 wire running form the always hot side of the battery contactor up to >the relay to grab the juice from the SD-8 is protected by a #16 fuselink. >I understand why the protection. My contactor is under the co-pilot's seat, >with the battery and the battery bus, and the SD-8's relay is planned for >behind the panel. Does this leave an always hot wire protected with a #16 >fuselink which would be over the 5A guideline for maximizing crash safety? You betcha. The SD-8's control relay should be right next to the fusible link installation close to the battery contactor. >Would the following alternative routing work? In my case I think the >following would facilitate wire installation. >My alternate feed for the e-bus is via #12 wire and a 701 relay located at >the battery bus under the seat, fused at 15 amps. Yes. > Instead of bringing the >#12 feed from the SD-8's 701 relay to the under seat contactor, could I >feed the system via the e-bus located behind the panel? >At the e-bus I would use a #16 fuselink or a fuse slot from the e-bus. That would probably be okay . . . from a noise perspective, we like to feed the battery first (it's your best filter) and then bring power from the battery to the e-bus . . . but try it and see if you can hear any alternator noise. It's easy to re-configure . . . This DOES allow running the SD-8 to the e-bus with the altenrnate feedpath open i.e., no battery at all. >My thought is that the juice from the SD-8 with its "14v" would take the >following path back to the battery. >Regulator via capacitor to the relay, relay to e-bus, run back though the >#12 e-bus feed, though the feed relay to the battery bus, to the contactor >and finally to the battery. Boy the life of an electron!. > >If the above works, my conclusion is, that when both Master and E-bus >switches are off in the case of a potential >$#& >%%*& >*&$ > the #12 wire >from the SD-8's relay is dead along with the relayed e-bus feed from the >battery bus. You could do this but I'd feel better about putting the both e-bus alternate feed and SD-8 disconnect relays right at the battery bus and wiring as shown in the digram. Bob . . . ________________________________ Message 8 _____________________________________ Time: 06:59:50 AM PST US From: Fiveonepw@aol.com Subject: Re: AeroElectric-List: Grand Rapids EIS 4000 MAP sensor --> AeroElectric-List message posted by: Fiveonepw@aol.com Hi Rick- You might wish to consider using a 1/8" steel bulkhead fitting (same size a priming lines) with a length of metal tubing on each side. The hose to the MAP sensor slips very nicely over the tubing and should be a lot more fireproof than your fuel line... Wicks calls it a "Union" : http://www.wicksaircraft.com/gotopage.php?page=138 Bottom of the page. They must be an endagered species, 'cause they ain't cheap! ($15) The nuts and sleeves (AN818-2D & MS20819-2D) I got from Genuine Aircraft Harware (couldn't find 'em anywhere else!) phone #(805)239-3169 From The PossumWorks in TN Mark In a message dated 1/12/04 11:25:53 PM Central Standard Time, rickf@cableone.net writes: > Grand Rapids recommends placing the MAP sensor in the cockpit because it > uses a plastic case. I'm not going to because I've gone to a lot of effort and > some $'s to protect the cockpit from engine fires. Placing the sensor in > the cockpit means you would have to bring a manifold pressure hose through the > firewall. ________________________________ Message 9 _____________________________________ Time: 07:34:48 AM PST US Subject: AeroElectric-List: SD-8 Feeding E-Bus followup From: Don Boardman --> AeroElectric-List message posted by: Don Boardman Good morning Bob, OK, I will install the SD-8 relay at the battery bus, actually very close to the contactor. It can be close enough to run a short 4" jumper of #16 from the bat side of the contactor to the relay input. Then #12 to the SD-8. From previous post: >> In figure (Z-13) The SD-8 section shows a #12 wire running from the >> regulator via the capacitor to a 701 relay. There is no need to protect this >> wire? Is it that this wire sees no current if the relay is not closed? >> The relay has the OVM-14 connected. No Diode needed? Thanks, Don B. ________________________________ Message 10 ____________________________________ Time: 07:51:53 AM PST US From: Richard Tasker Subject: AeroElectric-List: Re: RV-List: Brass Instrument Screws for MicroAir avionics --> AeroElectric-List message posted by: Richard Tasker Did they specifically state that these are 8-36 screws? Or is it possible that they are metric M4x0.7 screws (4mm dia, thread pitch 0.7mm)? Dick Tasker, 9A #90573 Rick Fogerson wrote: >--> RV-List message posted by: "Rick Fogerson" > >The MicroAir radio and xpdr use 8-36 thread screws which is not common. Does anyone know of a source for these. I need 8 and would prefer countersunk brass screws but might have to consider other if forced to. >Thanks for help, >Rick Fogerson >RV3 wiring >Boise, ID > > > > ________________________________ Message 11 ____________________________________ Time: 08:37:04 AM PST US From: Subject: AeroElectric-List: RE: AeroElectric-List Digest: 14 Msgs - 01/12/04 (confirm please) --> AeroElectric-List message posted by: huwrachel@earthlink.net here, I am controlling the email that is sent to my inbox. By asking for you to confirm that you really sent email to me I can ensure that I receive no spam and that your email address really exists. This is a one time confirmation, please click the link below and your email will be delivered straight away, now and in the future. Click to confirm: http://vetomail.com/ok/c249c6fd-4961-4232-b1a9-9ab137ff615f You are receiving this message in response to your email to huwrachel@earthlink.net, a VetoMail customer. VetoMail asks that senders verify their address before email is delivered. When you have clicked the link above a webpage will be displayed, if the page displays correctly your address has been verified. You will only need to do this once per VetoMail protected email address. Thankyou. ________________________________ Message 12 ____________________________________ Time: 08:54:53 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: SD-8 Feeding E-Bus followup --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 10:35 AM 1/13/2004 -0500, you wrote: >--> AeroElectric-List message posted by: Don Boardman > >Good morning Bob, > >OK, I will install the SD-8 relay at the battery bus, actually very close to >the contactor. It can be close enough to run a short 4" jumper of #16 from >the bat side of the contactor to the relay input. Then #12 to the SD-8. I think that's the most elegant solution. Bob . . . ________________________________ Message 13 ____________________________________ Time: 11:08:39 AM PST US From: Dave Morris 01/12/04 (confirm please) Subject: Re: AeroElectric-List: RE: AeroElectric-List Digest: 14 Msgs - 01/12/04 (confirm please) --> AeroElectric-List message posted by: Dave Morris 01/12/04 (confirm please) This is the sort of thing that is driving eCommerce sites nuts these days. You guys that have spam blockers that require verification need to realize that automated systems cannot possibly respond to these confirmation requests, and thus you are losing all the e-mails those sites are sending you. Dave Morris At 11:35 AM 1/13/2004 -0500, you wrote: >--> AeroElectric-List message posted by: > >huwrachel@earthlink.net here, > >I am controlling the email that is sent to my inbox. By asking for you >to confirm that you really sent email to me I can ensure that I receive >no spam and that your email address really exists. > >This is a one time confirmation, please click the link below and your >email will be delivered straight away, now and in the future. > >Click to confirm: >http://vetomail.com/ok/c249c6fd-4961-4232-b1a9-9ab137ff615f > > > >You are receiving this message in response to your email to >huwrachel@earthlink.net, a VetoMail customer. > >VetoMail asks that senders verify their address before email is >delivered. When you have clicked the link above a webpage will be >displayed, if the page displays correctly your address has been >verified. You will only need to do this once per VetoMail protected >email address. > >Thankyou. > > Dave Morris ________________________________ Message 14 ____________________________________ Time: 11:45:13 AM PST US From: "Chris Adkins" Subject: RE: AeroElectric-List: Re: RV-List: Brass Instrument Screws for MicroAir avionics --> AeroElectric-List message posted by: "Chris Adkins" Those screws are metric. I have both a transponder and a transceiver, and the manual even states that they're metric. Chris > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com [mailto:owner- > aeroelectric-list-server@matronics.com] On Behalf Of Richard Tasker > Sent: Tuesday, January 13, 2004 10:50 AM > To: rv-list@matronics.com > Subject: AeroElectric-List: Re: RV-List: Brass Instrument Screws for > MicroAir avionics > > --> AeroElectric-List message posted by: Richard Tasker > > > Did they specifically state that these are 8-36 screws? Or is it > possible that they are metric M4x0.7 screws (4mm dia, thread pitch 0.7mm)? > > Dick Tasker, 9A #90573 > > Rick Fogerson wrote: > > >--> RV-List message posted by: "Rick Fogerson" > > > >The MicroAir radio and xpdr use 8-36 thread screws which is not common. > Does anyone know of a source for these. I need 8 and would prefer > countersunk brass screws but might have to consider other if forced to. > >Thanks for help, > >Rick Fogerson > >RV3 wiring > >Boise, ID > > > > > > > > > > > == > == > == http://www.matronics.com/FAQ/AeroElectric-List.htm > == > > ________________________________ Message 15 ____________________________________ Time: 11:49:06 AM PST US From: "Chris Adkins" Subject: RE: AeroElectric-List: RE: AeroElectric-List Digest: 14 Msgs - 01/12/04 (confirm please) --> AeroElectric-List message posted by: "Chris Adkins" And in addition, Mr. huwrachel@earthlink.net has just been added to MY "Junk Senders List"!!! Chris :-) > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com [mailto:owner- > aeroelectric-list-server@matronics.com] On Behalf Of Dave Morris 01/12/04 > (confirm please) > Sent: Tuesday, January 13, 2004 2:08 PM > To: aeroelectric-list@matronics.com > Subject: Re: AeroElectric-List: RE: AeroElectric-List Digest: 14 Msgs - > 01/12/04 (confirm please) > > --> AeroElectric-List message posted by: Dave Morris > 01/12/04 (confirm please) > > This is the sort of thing that is driving eCommerce sites nuts these > days. You guys that have spam blockers that require verification need to > realize that automated systems cannot possibly respond to these > confirmation requests, and thus you are losing all the e-mails those sites > are sending you. > > Dave Morris > > > At 11:35 AM 1/13/2004 -0500, you wrote: > > >--> AeroElectric-List message posted by: > > > >huwrachel@earthlink.net here, > > > >I am controlling the email that is sent to my inbox. By asking for you > >to confirm that you really sent email to me I can ensure that I receive > >no spam and that your email address really exists. > > > >This is a one time confirmation, please click the link below and your > >email will be delivered straight away, now and in the future. > > > >Click to confirm: > >http://vetomail.com/ok/c249c6fd-4961-4232-b1a9-9ab137ff615f > > > > > > > >You are receiving this message in response to your email to > >huwrachel@earthlink.net, a VetoMail customer. > > > >VetoMail asks that senders verify their address before email is > >delivered. When you have clicked the link above a webpage will be > >displayed, if the page displays correctly your address has been > >verified. You will only need to do this once per VetoMail protected > >email address. > > > >Thankyou. > > > > > > Dave Morris > > > == > == > == http://www.matronics.com/FAQ/AeroElectric-List.htm > == > > ________________________________ Message 16 ____________________________________ Time: 02:44:28 PM PST US Subject: AeroElectric-List: Schematic From: Boddicker --> AeroElectric-List message posted by: Boddicker Bob, I know you have been busy. Just checking. I sent you a PDF off list to look at. Did you get it? Thanks, Kevin Boddicker Luana, Iowa Tri Q200 N7868B Building ________________________________ Message 17 ____________________________________ Time: 05:06:08 PM PST US From: "Steve Mineart" Subject: AeroElectric-List: aeroelectric seminar --> AeroElectric-List message posted by: "Steve Mineart" Bob, Can't thank you enough for the excellent workshop at Jeff City, you've really thought out a wealth of things electric, and are willing to meet us wherever we're at on the learning curve. I thought I'd be a lone novice among a bunch of guys talking about esoterica. I came away a believer that I could approach my electric system confidently ( one wire at a time) . I highly recommend the seminar to anyone building their plane. Thanks again! Steve Mineart CH601XL, tail, 90% L-wing ________________________________ Message 18 ____________________________________ Time: 06:01:01 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: aeroelectric seminar --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" At 07:09 PM 1/13/2004 -0600, you wrote: >--> AeroElectric-List message posted by: "Steve Mineart" > >Bob, >Can't thank you enough for the excellent workshop at Jeff City, you've >really thought out a wealth of things electric, and are willing to meet us >wherever we're at on the learning curve. I thought I'd be a lone novice >among a bunch of guys talking about esoterica. I came away a believer that >I could approach my electric system confidently ( one wire at a time) . I >highly recommend the seminar to anyone building their plane. Thanks again! Steve, thank you for the kind words. This was an exceptionally "hungry" class . . . when Sunday afternoon rolls around I always wish we had another day to go. In addition to what you've already cited as beneficial about last weekend, please consider this only a beginning of what should be the most enjoyable part of the project. Consider the paradigm shift I suggested by perhaps putting just enough electrics in to get your fly-off done: Rivets you drive are EXPECTED to be lifetime installations. Bolts holding the engine are something that one hopes won't be removed for at least 2,000 hours. It's difficult to shift one's mode of thinking from "carved in stone" to "big box of Tinker Toys" when it comes to stuff bolted to the panel. Perhaps the 40-hour fly-off will help with readjustment of the mindset. While you have almost zero choices/decisions to make with respect to airframe, flight controls and power plant, the electrical/avionics is a clean slate that can ultimately reflect what YOU want from your airplane. Further, that goal doesn't have to be met on any time table nor does anything you try have to be left in place forever. The learning curve on this stuff is very steep. I don't know if you heard me mention an Ez builder who attended one of my earliest seminars. He had been working on his airplane about 10 years and already had lots of wiring and other hardware installed. He wrote a month after the seminar to say we went home and ripped out all the stuff he'd already put in . . . and replaced everything (and more) in a weekend! Stay on the List and keep us apprised of both questions and your progress! Bob . . . ----------------------------------------- ( Experience and common sense cannot be ) ( replaced with policy and procedures. ) ( R. L. Nuckolls III ) ----------------------------------------- ________________________________ Message 19 ____________________________________ Time: 06:11:20 PM PST US From: "David Schaefer" Subject: AeroElectric-List: Ground Bolt? --> AeroElectric-List message posted by: "David Schaefer" Any idea where I can find a 3/4" or 1" BRASS bolt to replace the 1 3/4" 5/16 bolt from B&C on the ground strip? I understand that the composite guys may have a 1/2" firewall and need the long bold and gaggle of washers but us RV guys only have a very thin stainless firewall. I called B&C today and they don't have any shorter bolts. Regards, David Schaefer RV6-A Finishing ________________________________ Message 20 ____________________________________ Time: 06:51:58 PM PST US From: "LarryRobertHelming" Subject: Re: AeroElectric-List: Buttsplice vs. Solder Heatshrink? --> AeroElectric-List message posted by: "LarryRobertHelming" Bob, I need to make a #2awg wire about 3 inches longer that runs to my starter. I already got round connectors on ends. The reason is due to needing to reroute the wire and allow a bit of slack for attaching standoffs. What is the preferred way to do this or should I just bite the bullet and buy new wire? Indiana Larry ----- Original Message ----- From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Buttsplice vs. Solder Heatshrink? > --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" > > At 08:50 AM 1/8/2004 -0500, you wrote: > >--> AeroElectric-List message posted by: "LarryRobertHelming" > > > > > >Nothing wrong with that approach. If you have several to do, don't do them > >all at the same spot but space them out so you can later shrink over the > >whole bunch and not look like a snake that swallowed an egg. Another thing > >to consider is using the machined d-sub pins. After you put a pin on each > >joining wire, you slide a hear shrink on and shrink it down after plugging > >together. Works nice on the wires that might need to come back apart at a > >later time but costs more. But for things like the panel where there are > >lots of connections, you should consider Bob's suggestion that was posted > >yesterday of using the D-sub connector with machined pins using safety wire > >to hold the two halves together. > > > >Keep in mind solder does make a hard connection and that needs some relief > >with the heat shrink and other supports. > > As do crimped joints as well. Insulation support adjacent > to the electrical joint is automatically provided by the > PIDG style terminal technology. > > Raychem makes solder butt splices that depend on nothing > but solder for the mechanical and electrical connection > with the final assembly being supported by a rather stiff > cover of heatshrink for anti-flexure support. > > See > http://www.raychem.com/US/datasheets/1654025_Sec_8/8-6_8-11.pdf > > So, if doing this with $1.00/pop solder sleeves is a good > thing to do, I don't see why you couldn't use a similar > technique using off-the-shelf solder and heatshrink. > > Bob . . . > > ----------------------------------------- > ( Experience and common sense cannot be ) > ( replaced with policy and procedures. ) > ( R. L. Nuckolls III ) > ----------------------------------------- > > ________________________________ Message 21 ____________________________________ Time: 07:05:56 PM PST US Subject: AeroElectric-List: SD-8 Hook up From: Don Boardman --> AeroElectric-List message posted by: Don Boardman Hi Bob, These Questions are from a previous post. They got lost in the shuffle. 1) In figure (Z-13) the SD-8 section shows a #12 wire running from the regulator via the capacitor to the DS-8 relay near the contactor. Is there a need to protect this wire when the relay is open? Is it that this wire sees no current if the relay is open and when the relay is closed the wire is protected by the #16 wire at the contactor? 2) The DS-8 relay has the OVM-14 connected. No Diode needed? Thanks, Don B. ________________________________ Message 22 ____________________________________ Time: 07:14:51 PM PST US From: "Lonnie Benson" Subject: Re: AeroElectric-List: Ground Bolt? --> AeroElectric-List message posted by: "Lonnie Benson" Check your local plumbing supply store or cut the bolts you have to the desired length. ----- Original Message ----- From: "David Schaefer" Subject: AeroElectric-List: Ground Bolt? > --> AeroElectric-List message posted by: "David Schaefer" > > Any idea where I can find a 3/4" or 1" BRASS bolt to replace the 1 3/4" 5/16 > bolt from B&C on the ground strip? I understand that the composite guys may > have a 1/2" firewall and need the long bold and gaggle of washers but us RV > guys only have a very thin stainless firewall. I called B&C today and they > don't have any shorter bolts. > > Regards, > > David Schaefer > RV6-A Finishing > > ________________________________ Message 23 ____________________________________ Time: 08:05:22 PM PST US From: "F1Rocket" Subject: AeroElectric-List: Pyrotechnic actuation --> AeroElectric-List message posted by: "F1Rocket" Hi all, I'm trying to set up a method to control up to eight pyrotechnics mounted under the wing. The minimum actuation voltage is 1.5 volts. The switch will be from the momentary stick grip. The first set will be triggered with one click of the button, second set with the second click, and so on. I'm a little worried about false actuation, so maybe a system where the button has to be held for one second? The total number of shots will be 8. Any ideas out there what might work? Thanks, Jeff ________________________________ Message 24 ____________________________________ Time: 10:53:58 PM PST US From: Benford2@aol.com Subject: Re: AeroElectric-List: Pyrotechnic actuation --> AeroElectric-List message posted by: Benford2@aol.com In a message dated 1/13/2004 9:06:30 PM Mountain Standard Time, f1rocket@telus.net writes: > Hi all, > > I'm trying to set up a method to control up to eight pyrotechnics mounted > under the wing. > > The minimum actuation voltage is 1.5 volts. The switch will be from the > momentary stick grip. The first set will be triggered with one click of the > button, second set with the second click, and so on. I'm a little worried about > false actuation, so maybe a system where the button has to be held for one > second? > > The total number of shots will be 8. > > Any ideas out there what might work? > > Thanks, > Jeff > > Can you say,??? Homeland Security ????? Pray tell what you have in mind... Ben N801BH do not archive