---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 10/25/10: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:05 AM - Re: Ground Power / Tiedown Power Cart (Glen Matejcek) 2. 08:15 AM - Re: Right Angle BNC Fittings (Bill & Sue) 3. 08:26 AM - Re: Re: Ground Power / Tiedown Power Cart (Mike Welch) 4. 08:33 AM - Re: Re: Ground Power / Tiedown Power Cart (Mike Welch) 5. 09:44 AM - Re: Re: Ground Power / Tiedown Power Cart (Ed Gilroy) 6. 10:10 AM - Re: Re: Ground Power / Tiedown Power Cart (Mike Welch) 7. 01:28 PM - Re: Re: Ground Power / Tiedown Power Cart (BobsV35B@aol.com) 8. 07:55 PM - test (Noel Loveys) 9. 07:58 PM - Test (Noel Loveys) 10. 09:47 PM - Re: Test (F. Tim Yoder) ________________________________ Message 1 _____________________________________ Time: 08:05:05 AM PST US From: Glen Matejcek Subject: AeroElectric-List: Re: Ground Power / Tiedown Power Cart Hi All- You know, the thing that would make the 12 - 24v battery cart zippy would be a DPDT knife switch cabable of handling cranking currents. It would handle the switching function elegantly, and if mounted in a recess or under a cover would be pretty darn safe from accidental shorts. I've not looked yet, but I wonder if such a thing is still available, especially in some sort of surpluss house... Glen Matejcek ________________________________ Message 2 _____________________________________ Time: 08:15:51 AM PST US Subject: AeroElectric-List: Re: Right Angle BNC Fittings From: "Bill & Sue" Bob, Yes it makes sense and of course you are quite right about the extra loss, but I challenge anyone to measure it at the frequencies concerned, let alone tell any difference in practice (we are talking about the equivalent of perhaps a few inches of cable). Right angle connectors are harder to come by, but over here RS sell them for less than the price of the adapters. The adapters are a little more bulky, but the most serious downside is the weight which will raise your stall speed by around 0.001%! Cheers Bill BobsV35B(at)aol.com wrote: > Good Morning Bill, > > That which you have shown is, as you say, an adapter. The higher priced version is a right angle connector, not an adapter. > > The adapter has a slightly higher, though still minimal, loss involved. It means that there are two connections involved in lieu of one and the right angle connector generally has a slightly smaller profile than does a connector and an adapter. > > Make any sense at all? > > Happy Skies, > > Old Bob > > > > Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316975#316975 ________________________________ Message 3 _____________________________________ Time: 08:26:26 AM PST US From: Mike Welch Subject: RE: AeroElectric-List: Re: Ground Power / Tiedown Power Cart > You know=2C the thing that would make the 12 - 24v battery cart zippy wou ld be a DPDT knife switch >I wonder if such a thing is still available=2C especially in some sort of surpluss house... > > Glen Matejcek Glen=2C You mean like this=3B http://www.wirthco.com/12/24-volt-heavy-equipment-switch-p-66-l-en.html Although it isn't configured exactly yet=2C it wouldn't be but a very min or mod to make it so. I think you are right. This would be a very simple solution!! Mike Welch ________________________________ Message 4 _____________________________________ Time: 08:33:39 AM PST US From: Mike Welch Subject: RE: AeroElectric-List: Re: Ground Power / Tiedown Power Cart > You know=2C the thing that would make the 12 - 24v battery cart zippy wou ld be a DPDT knife switch > Glen Matejcek Glen=2C On second examination=2C yes the switch IS configured correctly right out of the box. I see where they make the second set of contacts to go through the handle itself!! Clever! Mike ________________________________ Message 5 _____________________________________ Time: 09:44:50 AM PST US Subject: Re: AeroElectric-List: Re: Ground Power / Tiedown Power Cart From: Ed Gilroy That was exactly the kind of device I had mused about in my original request to this group. It doesn't quite qualify as "idiot-proof", but comes pretty close. Ed On Mon, Oct 25, 2010 at 11:22 AM, Mike Welch wrote: > > > You know, the thing that would make the 12 - 24v battery cart zippy would > be a DPDT knife switch > >I wonder if such a thing is still available, especially in some sort of > surpluss house... > > > > Glen Matejcek > > > Glen, > > You mean like this; > > http://www.wirthco.com/12/24-volt-heavy-equipment-switch-p-66-l-en.html > > Although it isn't configured exactly yet, it wouldn't be but a very minor > mod to make it so. > > I think you are right. This would be a very simple solution!! > > Mike Welch > > * > > * > > ________________________________ Message 6 _____________________________________ Time: 10:10:13 AM PST US From: Mike Welch Subject: RE: AeroElectric-List: Re: Ground Power / Tiedown Power Cart Ed=2C I'd think that someone who can't get the battery boost-start correct=2C or otherwise screws up this DPDT blade set-up might not have any business working near a plane. Just a thought.... Mike Subject: Re: AeroElectric-List: Re: Ground Power / Tiedown Power Cart From: egilroy@gmail.com That was exactly the kind of device I had mused about in my original reques t to this group. It doesn't quite qualify as "idiot-proof"=2C but comes pre tty close. Ed On Mon=2C Oct 25=2C 2010 at 11:22 AM=2C Mike Welch wrote: > You know=2C the thing that would make the 12 - 24v battery cart zippy wou ld be a DPDT knife switch >I wonder if such a thing is still available=2C especially in some sort of surpluss house... > > Glen Matejcek Glen=2C You mean like this=3B http://www.wirthco.com/12/24-volt-heavy-equipment-switch-p-66-l-en.html Although it isn't configured exactly yet=2C it wouldn't be but a very min or mod to make it so. I think you are right. This would be a very simple solution!! Mike Welch ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List tp://forums.matronics.com _blank">http://www.matronics.com/contribution ________________________________ Message 7 _____________________________________ Time: 01:28:18 PM PST US From: BobsV35B@aol.com Subject: Re: AeroElectric-List: Re: Ground Power / Tiedown Power Cart Good Afternoon Mike, You may well be correct, but there are many of us who have been working on airplanes for sixty years or more who do still make mistakes. Last I heard, to err is human I'll take all the help I can get. Happy Skies, Old Bob In a message dated 10/25/2010 12:11:49 P.M. Central Daylight Time, mdnanwelch7@hotmail.com writes: Ed, I'd think that someone who can't get the battery boost-start correct, or otherwise screws up this DPDT blade set-up might not have any business working near a plane. Just a thought.... Mike ____________________________________ Subject: Re: AeroElectric-List: Re: Ground Power / Tiedown Power Cart From: egilroy@gmail.com That was exactly the kind of device I had mused about in my original request to this group. It doesn't quite qualify as "idiot-proof", but comes pretty close. Ed On Mon, Oct 25, 2010 at 11:22 AM, Mike Welch <_mdnanwelch7@hotmail.com_ (mailto:mdnanwelch7@hotmail.com) > wrote: > You know, the thing that would make the 12 - 24v battery cart zippy would be a DPDT knife switch >I wonder if such a thing is still available, especially in some sort of surpluss house... > > Glen Matejcek Glen, You mean like this; _http://www.wirthco.com/12/24-volt-heavy-equipment-switch-p-66-l-en.html_ (http://www.wirthco.com/12/24-volt-heavy-equipment-switch-p-66-l-en.html) Although it isn't configured exactly yet, it wouldn't be but a very minor mod to make it so. I think you are right. This would be a very simple solution!! Mike Welch ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List tp://forums.matronics.com _blank">http://www.matronics.com/contribution -List" target=_blank>http://www.matronics.com/Navigator?AeroElectric-List ttp://forums.matronics.com =_blank>http://www.matronics.com/contribution (http://www.matronics.com/Navigator?AeroElectric-List) (http://www.matronics.com/contribution) ________________________________ Message 8 _____________________________________ Time: 07:55:34 PM PST US From: "Noel Loveys" Subject: AeroElectric-List: test this is just to see if the mail will go through Noel -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Bill & Sue Sent: October 25, 2010 12:43 PM Subject: AeroElectric-List: Re: Right Angle BNC Fittings Bob, Yes it makes sense and of course you are quite right about the extra loss, but I challenge anyone to measure it at the frequencies concerned, let alone tell any difference in practice (we are talking about the equivalent of perhaps a few inches of cable). Right angle connectors are harder to come by, but over here RS sell them for less than the price of the adapters. The adapters are a little more bulky, but the most serious downside is the weight which will raise your stall speed by around 0.001%! Cheers Bill BobsV35B(at)aol.com wrote: > Good Morning Bill, > > That which you have shown is, as you say, an adapter. The higher priced version is a right angle connector, not an adapter. > > The adapter has a slightly higher, though still minimal, loss involved. It means that there are two connections involved in lieu of one and the right angle connector generally has a slightly smaller profile than does a connector and an adapter. > > Make any sense at all? > > Happy Skies, > > Old Bob > > > > Read this topic online here: http://forums.matronics.com/viewtopic.php?p=316975#316975 ________________________________ Message 9 _____________________________________ Time: 07:58:02 PM PST US From: "Noel Loveys" Subject: AeroElectric-List: Test I have been making several posts on the thread Ground power/Tie down cart. Apparently all my posts are being refused. This one is being sent through a link on matronics page not via the Reply button. Noel ________________________________ Message 10 ____________________________________ Time: 09:47:36 PM PST US From: "F. Tim Yoder" Subject: Re: AeroElectric-List: Test Got it ----- Original Message ----- From: Noel Loveys To: aeroelectric-list@matronics.com Sent: Monday, October 25, 2010 7:51 PM Subject: AeroElectric-List: Test I have been making several posts on the thread Ground power/Tie down cart. Apparently all my posts are being refused. This one is being sent through a link on matronics page not via the Reply button. Noel ------------------------------------------------------------------------------------- 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.