---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 09/18/12: 19 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:27 AM - Pinouts for Skyview CM/CMT2000 (Bill Allen) 2. 05:41 AM - Re: Pinouts for Skyview CM/CMT2000 (Stuart Hutchison) 3. 07:09 AM - 5 Volt power supply source (earl_schroeder@juno.com) 4. 07:16 AM - Re: Pinouts for Skyview CM/CMT2000 (Bill Allen) 5. 07:33 AM - Re: The biggest lie of Campaign 2012 (Lynn Cole) 6. 09:13 AM - Re: Military style external power receptacle question (plevyakh) 7. 10:12 AM - Re: USB Power (Eric Page) 8. 10:46 AM - Re: USB Power (Robert L. Nuckolls, III) 9. 11:02 AM - Re: Re: Military style external power receptacle question (Robert L. Nuckolls, III) 10. 12:17 PM - Re: Military style external power receptacle question (plevyakh) 11. 01:25 PM - Re: Fuel Pressure Sensor search (eschlanser) 12. 01:54 PM - CbOV-14 Crowbar OV Module - extra part? = MBS4991 (plevyakh) 13. 02:08 PM - Re: Crowbar (plevyakh) 14. 02:21 PM - Re: Re: Fuel Pressure Sensor search (Richard Tasker) 15. 05:04 PM - Re: Fuel Pressure Sensor search (eschlanser) 16. 08:10 PM - Re: CbOV-14 Crowbar OV Module - extra part? = MBS4991 (Robert L. Nuckolls, III) 17. 08:11 PM - Re: Re: Crowbar (Robert L. Nuckolls, III) 18. 10:03 PM - Re: The biggest lie of Campaign 2012 (Bob Verwey) 19. 10:28 PM - Re: Flap Control Schematic - will it work? (Nati Niv) ________________________________ Message 1 _____________________________________ Time: 04:27:41 AM PST US Subject: AeroElectric-List: Pinouts for Skyview CM/CMT2000 From: Bill Allen Hi guys, Can anyone help me find the pinouts for a Skyview CM/CT2000? (model No: RL0322) please? thanks, Bill Allen ________________________________ Message 2 _____________________________________ Time: 05:41:03 AM PST US From: Stuart Hutchison Subject: Re: AeroElectric-List: Pinouts for Skyview CM/CMT2000 Hi Bill, perhaps you mean a Skyforce CT/CM2000? I have a Skyview system, but havent heard of those boxes before now! Kind regards, Stu Sent from my iPhone On 18/09/2012, at 21:26, Bill Allen wrote: > Hi guys, > > Can anyone help me find the pinouts for a Skyview CM/CT2000? (model No: RL 0322) please? > > thanks, > > Bill Allen > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ________________________________ Message 3 _____________________________________ Time: 07:09:12 AM PST US From: "earl_schroeder@juno.com" Subject: AeroElectric-List: 5 Volt power supply source This 5 Volt power supply might be a good value: http://www.mpja.com/09-18-12.asp?r=278940&s=14 I have purchased various items from them over the years and would suggest their consideration. (no affiliation just a satisfied user) Earl ________________________________ Message 4 _____________________________________ Time: 07:16:37 AM PST US Subject: Re: AeroElectric-List: Pinouts for Skyview CM/CMT2000 From: Bill Allen As Stuart correctly points out, I did mean to enquire about the Skyforce pinouts.... forgive the dyslexia - I'm also working on a Skyview system......to many skys..... Bill On 18 September 2012 13:40, Stuart Hutchison wrote: > Hi Bill, perhaps you mean a Skyforce CT/CM2000? I have a Skyview system, > but havent heard of those boxes before now! > > Kind regards, Stu > > Sent from my iPhone > > On 18/09/2012, at 21:26, Bill Allen wrote: > > Hi guys, > > Can anyone help me find the pinouts for a Skyview CM/CT2000? (model No: > RL0322) please? > > thanks, > > Bill Allen > > * > > * > > * > > * > > ________________________________ Message 5 _____________________________________ Time: 07:33:10 AM PST US From: Lynn Cole Subject: Re: AeroElectric-List: The biggest lie of Campaign 2012 Please do not waste valuable bandwidth on this aviation forum with political messages. Do not archive. ----- Lynn Cole LynnCole@foxvalley.net On Sep 17, 2012, at 4:31 PM, RScott wrote: > > We knew that idiot Obama's budget was bogus from the beginning, but it's even worse! The article doesn't get to the important stuff for several paragraphs. > > http://www.lvrj.com/opinion/the-biggest-lie-of-campaign-2012-169941296.htm l > > > > ________________________________ Message 6 _____________________________________ Time: 09:13:46 AM PST US Subject: AeroElectric-List: Re: Military style external power receptacle question From: "plevyakh" Guys, What size wire should be used for the feed from the smaller third pin of the military style power receptacle to the (+) OVM sensing connection post? Since mine is in the engine side, I was going to use 18AWG. Is this acceptable? Thanks, Howard On May 24, 2009, at 4:15 PM, johngoodman wrote: Looking at Bob's wiring diagram in Appendix Z, 31A, for a military style external power receptacle, what is the function of the smaller third pin? Just guessing by the schematic it's hot power, just like the middle pin. Inquiring minds want to know........ John -------- #40572 QB Fuselage, wings finished. Finish Kit started. N711JG reserved It's a sense pin and it is hot, the same as the center pin. Without the plug, it is not connected to the center pin. It can be used as the drawing shows, to separate the source of power activating the contactor from what is flowing through the contactor. This allows you a way to take action on this pin going hot. In the case of Z31A, that drawing shows polarity and overvoltage sensing being done from that pin." Read this topic online here: http://forums.matronics.com/viewtopic.php?p 45177#245177 -------- Howard Plevyak GlaStar / North Bend, Ohio hplevyak@mac.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=383426#383426 ________________________________ Message 7 _____________________________________ Time: 10:12:35 AM PST US Subject: Re: AeroElectric-List: USB Power From: Eric Page Bob Nuckolls wrote: > Your product sounds like it would have some appeal to OBAM aircraft owners so advertising availability here on the List is welcome also. > > Bob . . . Thanks, Bob. I almost didn't mention it at all; too many of these forums get polluted with either excessive commercial messages of off-topic garbage. I promise not to make my shilling a nuisance! Eric ________________________________ Message 8 _____________________________________ Time: 10:46:47 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: USB Power >Thanks, Bob. I almost didn't mention it at all; too many of these >forums get polluted with either excessive commercial messages of >off-topic garbage. I promise not to make my shilling a nuisance! No worries. Bob . . . ________________________________ Message 9 _____________________________________ Time: 11:02:04 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Military style external power receptacle question At 11:12 AM 9/18/2012, you wrote: > >Guys, >What size wire should be used for the feed from the smaller third >pin of the military style power receptacle to the (+) OVM sensing >connection post? Since mine is in the engine side, I was going to >use 18AWG. Is this acceptable? 22AWG fine for the current but you can go bigger for mechanical robustness. Some OEMs don't run anything smaller than 20AWG in engine compartments and/or wheelwells. 18AWG is fine too. Bob . . . ________________________________ Message 10 ____________________________________ Time: 12:17:46 PM PST US Subject: AeroElectric-List: Re: Military style external power receptacle question From: "plevyakh" Thanks Bob! -------- Howard Plevyak GlaStar / North Bend, Ohio hplevyak@mac.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=383450#383450 ________________________________ Message 11 ____________________________________ Time: 01:25:16 PM PST US Subject: AeroElectric-List: Re: Fuel Pressure Sensor search From: "eschlanser" Those are higher pressure (7.5 psi) sensors than john asked for. Working with a cabin tank and gravity fed fuel line here (no fuel pump). How would it be plumbed and wired into a gravity fed fuel line from a cabin tank mounted between the instrument panel and the firewall, with the fuel line routed from the bottom of the tank going forward to the firewall mounted gascolator, and finally to the carburetor? What gauge would work with it? Thanks, Eric Schlanser [quote="retasker(at)optonline.net"]Interesting. The first is one made by my company. Dick Tasker Robert L. Nuckolls, III wrote: [quote] At 06:38 PM 9/14/2012, you wrote: > > > Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor. > Can be either two or three terminal. > > thanks for leads (brands or unused items), -john- Finding such a critter with a full scale range that small is problematic . . . especially one with all metal pressure-side materials that would be okay with gasoline. Suggest you look at something like this http://tinyurl.com/9uw647y http://tinyurl.com/8unuxge http://tinyurl.com/983v7o7 http://tinyurl.com/99xfyrs This is a small sample of possibilities. They're all aerospace grade devices at very reasonable prices compared to off the shelf new. Even as used devices, transducers of this genre' are likely to be a better value than automotive devices. Bob . . . Read this topic online here: http://forums.matronics.com/viewtopic.php?p=383454#383454 ________________________________ Message 12 ____________________________________ Time: 01:54:32 PM PST US Subject: AeroElectric-List: CbOV-14 Crowbar OV Module - extra part? = MBS4991 From: "plevyakh" Bob, I bought a CbOV-14 Crowbar OV Protection module from you awhile back. In the plastic packet is the module, along with a small transistor MBS4991 separate from the module itself. Is this a spare in the event that transistor needs replacement at some time in the future? Should I just put this in my long term maintenance box of parts? I just wanted to be sure I wasn't supposed to install it as well. I'm using the CbOV-14 module for my Ground Power Jack per your article "Low Cost Ground Power Jack for your airplane." Thanks, Howard -------- Howard Plevyak GlaStar / North Bend, Ohio hplevyak@mac.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=383456#383456 ________________________________ Message 13 ____________________________________ Time: 02:08:41 PM PST US Subject: AeroElectric-List: Re: Crowbar From: "plevyakh" Guys, I'm installing the CbOVM-14 OV Protection module and wanted to confirm if it's ok to install this on the engine side of the firewall (HOT), or should I put it on the Instrument Panel side (COOL). It would be a little easier with wiring to zip tie it onto my Ground Power contactor terminal wires on the engine side, but I didn't want to do this if over the airplane life I'd eventually fry the thing. Sounds like either side I choose, the installation mount method is to just tie wrap it to some wires. If others have a better idea, I'd appreciate the tips. TIA for your comments and help! Howard -------- Howard Plevyak GlaStar / North Bend, Ohio hplevyak@mac.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=383458#383458 ________________________________ Message 14 ____________________________________ Time: 02:21:39 PM PST US From: Richard Tasker Subject: Re: AeroElectric-List: Re: Fuel Pressure Sensor search If it is just gravity fed, what is the point of a pressure sensor? If you are planning to use it as a fuel gauge, that would be not so easy. The majority of the gravity fed head is from the bottom of the fuel tank in the wings to the point of use. The head pressure in the wing from full to empty is a small fraction of that. So you would need a sensor that can withstand avgas (or autogas if that is what you are using) that could measure only a few inches of water (fractions of a psi). Possible, but not so easy. Dick Tasker P.S. We (www.astsensors.com) do make sensors that will measure down to 5 inH2O but the cost is not particularly appealing for this type of use. eschlanser wrote: > > Those are higher pressure (7.5 psi) sensors than john asked for. > > Working with a cabin tank and gravity fed fuel line here (no fuel pump). > > How would it be plumbed and wired into a gravity fed fuel line from a cabin tank mounted between the instrument panel and the firewall, with the fuel line routed from the bottom of the tank going forward to the firewall mounted gascolator, and finally to the carburetor? > > What gauge would work with it? > > Thanks, > Eric Schlanser > > [quote="retasker(at)optonline.net"]Interesting. The first is one made by my company. > > Dick Tasker > > Robert L. Nuckolls, III wrote: > [quote] > > At 06:38 PM 9/14/2012, you wrote: >> >> Searching for a low pressure 7.5psi (0.5 bar) fuel (avgas) pressure sensor. >> Can be either two or three terminal. >> >> thanks for leads (brands or unused items), -john- > Finding such a critter with a full scale > range that small is problematic . . . especially > one with all metal pressure-side materials > that would be okay with gasoline. > > Suggest you look at something like this > > http://tinyurl.com/9uw647y > http://tinyurl.com/8unuxge > http://tinyurl.com/983v7o7 > http://tinyurl.com/99xfyrs > > This is a small sample of possibilities. > They're all aerospace grade devices at > very reasonable prices compared to off the > shelf new. Even as used devices, transducers > of this genre' are likely to be a better > value than automotive devices. > > > Bob . . . > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=383454#383454 > > ________________________________ Message 15 ____________________________________ Time: 05:04:46 PM PST US Subject: AeroElectric-List: Re: Fuel Pressure Sensor search From: "eschlanser" I was thinking fuel flow, not fuel level. I suspect it's not appropriate for that use. Nevermind. thanks, Eric Read this topic online here: http://forums.matronics.com/viewtopic.php?p=383469#383469 ________________________________ Message 16 ____________________________________ Time: 08:10:46 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: CbOV-14 Crowbar OV Module - extra part? = MBS4991 At 03:53 PM 9/18/2012, you wrote: Bob, I bought a CbOV-14 Crowbar OV Protection module from you awhile back. In the plastic packet is the module, along with a small transistor MBS4991 separate from the module itself. Is this a spare in the event that transistor needs replacement at some time in the future? Should I just put this in my long term maintenance box of parts? That's a stray . . . stash it. I just wanted to be sure I wasn't supposed to install it as well. I'm using the CbOV-14 module for my Ground Power Jack per your article "Low Cost Ground Power Jack for your airplane." I'm mystified as to how it managed the great escape but there you go! Bob . . . ________________________________ Message 17 ____________________________________ Time: 08:11:18 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: Crowbar At 04:08 PM 9/18/2012, you wrote: Guys, I'm installing the CbOVM-14 OV Protection module and wanted to confirm if it's ok to install this on the engine side of the firewall (HOT), or should I put it on the Instrument Panel side (COOL). It would be a little easier with wiring to zip tie it onto my Ground Power contactor terminal wires on the engine side, but I didn't want to do this if over the airplane life I'd eventually fry the thing. it won't be damaged . . . but htey do have a temperature coefficient of voltage greater than I would like. Sounds like either side I choose, the installation mount method is to just tie wrap it to some wires. If others have a better idea, I'd appreciate the tips. That will work . . . and it would be best to install it in the cockpit. Bob . . . ________________________________ Message 18 ____________________________________ Time: 10:03:50 PM PST US Subject: Re: AeroElectric-List: The biggest lie of Campaign 2012 From: Bob Verwey These people should be barred from the forum... On 18/09/2012, Lynn Cole wrote: > Please do not waste valuable bandwidth on this aviation forum with political > messages. > > Do not archive. > ----- > Lynn Cole > LynnCole@foxvalley.net > > > On Sep 17, 2012, at 4:31 PM, RScott wrote: > >> >> >> We knew that idiot Obama's budget was bogus from the beginning, but it's >> even worse! The article doesn't get to the important stuff for several >> paragraphs. >> >> http://www.lvrj.com/opinion/the-biggest-lie-of-campaign-2012-169941296.html >> >> >> >> > > ________________________________ Message 19 ____________________________________ Time: 10:28:59 PM PST US Subject: Re: AeroElectric-List: Flap Control Schematic - will it work? From: Nati Niv Bob Couple of days ago Ii sent you a diagram of a design that should work. I understand from your silence that you are shocked from the complex and convoluted design J..... Since then I cleaned the diagram and came up with simplified design (only three relays, two of them are small, light duty ones) Let me know if you are interested Nati On Sun, Sep 16, 2012 at 10:30 AM, Nati Niv wrote: > Bob > > > Here is something that will work for you: from any to any (position), wit h > limit switches and based on electromechanical (relays 7 of them they can > be very small) and 11 diodes, more complex but it will work > . > > For that to work properly you will need to modify the mechanical design i n > a way that only one micro switch is make at a time, you will also have > different LED indication compared to your design: only one LED will be li t > at a time indicating current flap position. > > > Have fun > > Nati > On Sat, Sep 15, 2012 at 11:41 AM, Nati Niv wrote: > >> Bob >> >> >> >> Now, that I understand the mechanical design I have a solution including >> to the =93moving from any position to any position up/down=94 can you se nd me >> the diagram in a format other than PDF and I will returned it corrected? >> Now that I understand I really the simplicity of it. >> >> >> >> Nati >> >> >> On Sat, Sep 15, 2012 at 10:39 AM, Robert Reed wrote : >> >>> Nati, >>> >>> Sorry, I only showed the electrical and did not explain the mechanics o f >>> the operation. >>> >>> The micro-switches will be located in a channel with the ability to mov e >>> them to adjust the positions. A slide bar will be attached to the trim >>> control arm. The slide bar will close each switch in line during the >>> retract operation and open each in line during the extend. During the >>> retract operation only the retract circuit will be powered by the rotar y >>> switch with the intent of full retraction and not stepped retraction. >>> During extension, only one circuit can be active at any time and that >>> circuit will close as soon as the slide bar passes the switch allowing it >>> to open. The indicator lights will only light when the desired circuit is >>> active and the switch is open. It should allow for either stepped flap >>> extension or full extension with one operation. >>> >>> Bob >>> >>> >>> >>> >>> ------------------------------ >>> *From:* Nati Niv >>> *To:* aeroelectric-list@matronics.com >>> *Sent:* Fri, September 14, 2012 10:14:26 PM >>> *Subject:* Re: AeroElectric-List: Flap Control Schematic - will it work ? >>> >>> Rob >>> >>> >>> >>> It will not work. >>> >>> I understand the KIS approach that leads you to use relays/micro >>> switches only. Unfortunately designing such thing will require some lev el >>> of electronic involves and the reason for it is that you need to know * at >>> all times* what the position of the flaps is because you need to tell >>> the motor to which direction to go, up/down. Using micro switch as a >>> location sensing lacks this capability, it =93senses=94 at only one pos ition, >>> the position to which you set it mechanically along the motor travel. T he >>> moment the motor moves from that position you have no indication of whe re >>> you are. The most common sense to use as sensing device would be a >>> potentiometer, and then you need some electronics to sense and compare >>> (comparators). I would even think basing the design on the LM3914 10 LE D >>> driver. >>> >>> When it was time for me to change the flap system on my RANS 6 from >>> manual to electric I thought, as an electronic fan about deferent desig ns >>> but eventually find myself using this: >>> >>> >>> >>> http://www.e-motionllc.com/Feedback_actuator_p/fa-po-150-12-2.htm >>> >>> >>> >>> As the actuator (it has built in potentiometer) >>> >>> >>> >>> And this as a controller. >>> >>> >>> >>> >>> http://www.aircraftspruce.com/catalog/elpages/electronicsflapcontroller .php >>> >>> >>> >>> A little pricy, I know but works, I love every second flying the 6 with >>> this arrangement >>> >>> >>> >>> Nati >>> >>> RANS 6 >>> >>> Illinois >>> >>> >>> >>> >>> On Sat, Sep 15, 2012 at 6:51 AM, Robert Reed wrote : >>> >>>> All, >>>> >>>> >>>> >>>> Attached is my plan for a flap control system using a Rotary 4 positio n >>>> switch to control the flaps with LED indicators to show the position >>>> settings. The rotary switch will have a lever that not only gives a >>>> tactile feel indicating position but will point to the LED. I believe this >>>> setup will work but would like some review. I have also included abso lute >>>> limit switched to ensure that an over-run will not occur due to a bad relay. >>>> >>>> >>>> >>>> Bob Reed >>>> >>> >>> * >>> >>> om/Navigator?AeroElectric-List" rel=nofollow target=_blank>http://w ww.mhref="http://forums.matronics.com/" rel=nofollow target=_blank>ht tp:/========= >>> * >>> >>> * >>> =========== =========== =========== =========== >>> * >>> >>> >> > ------------------------------------------------------------------------------------- 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.