---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sat 12/28/19: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:38 AM - Small diameter Taxi Light Needed (rparigoris) 2. 02:04 PM - Re: B&C voltage regulator low voltage warning (ADDENDUM) (markfw) 3. 02:31 PM - Re: EFI current requirements (markfw) 4. 03:06 PM - Re: EFI current requirements (johnbright) 5. 04:00 PM - Re: Small diameter Taxi Light Needed (Charlie England) 6. 09:25 PM - Re: Small diameter Taxi Light Needed (Ernest Christley) ________________________________ Message 1 _____________________________________ Time: 11:38:16 AM PST US Subject: AeroElectric-List: Small diameter Taxi Light Needed From: "rparigoris" Hi Group I have a Europa XS with limited real estate on the cowl or EZ mounting of a Taxi LED. I have a Kuntzleman 3" diameter Hockey Puck and could mutilate the cowl and put a clear cover over it for a lot of work. BTW the angle coverage of Kuntzleman is 2 degrees. It's just about marginal for taxi. My build partner has a LED Headlight for his Mountain bike that is nothing short of amazing. It has a hot spot ~ 15 degree angle and incidental 25 degree coverage. It has a single large area of yellow LED that's ~ 1.2" in diameter. I was comparing light from my Volvo station wagon with H7 Halogen right only headlight, Kuntzleman and Bike Headlight. Bike headlight is whiter, brighter, better coverage than either of the other 2. The bike mfg says it measured a precise 1,000 Lumens, but for me it seems that a lot of Mfg kinda stretch the truth. Acid test going out and trying it and comparing works best for me. Amazing for 1.2". The problem is it has a control that is not conducive for aircraft. Computer controls things including an innovative sense of current at the LED. They drive it hard but control controls things great. It runs off a single Lithium battery. Being very careful to try and drive LED with a driver, worked OK sneaking up on current to match controller. When shut off upon turn on burned out LED. Anyway my question: Does anyone know of a small LED that is ~ 1.25" in diameter with wide angle and throws out incredible light? Probably needs the precise current control circuit. Can pretty EZ mount 2 on cowl. Aerosun sells a small LED but it only has a 10 degree angle. Ron P. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494074#494074 ________________________________ Message 2 _____________________________________ Time: 02:04:05 PM PST US Subject: AeroElectric-List: Re: B&C voltage regulator low voltage warning (ADDENDUM) From: "markfw" Bob, I could use two of the RED high intensity bulbs. I assume you will tell me how to pay. To finish off another thread, if I have a 40 amp alternator and I want to fuse-protect the B-lead would you recommend a 50 amp (or other) ANL fuse somewhere forward, like on the firewall? Thanks. Mark Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494076#494076 ________________________________ Message 3 _____________________________________ Time: 02:31:34 PM PST US Subject: AeroElectric-List: Re: EFI current requirements From: "markfw" John, This is a very impressive amount of due diligence on your part. Thank you so much for sharing all of this. It will help me up my game in my own planning. The data on EM-5 current draw is very useful since I was using much higher numbers derived from Ross's very conservative numbers quoted in his manuals. Using your numbers I can see that a single large Lithium battery should give me all of the ALT-OUT endurance I would ever need over water or mountains here in the West. Mark Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494077#494077 ________________________________ Message 4 _____________________________________ Time: 03:06:27 PM PST US Subject: AeroElectric-List: Re: EFI current requirements From: "johnbright" markfw wrote: > John, > > This is a very impressive amount of due diligence on your part. > > Thank you so much for sharing all of this. It will help me up my game in my own planning. > > The data on EM-5 current draw is very useful since I was using much higher numbers derived from Ross's very conservative numbers quoted in his manuals. > > Using your numbers I can see that a single large Lithium battery should give me all of the ALT-OUT endurance I would ever need over water or mountains here in the West. > > Mark Thanks Mark... you might learn something on VAF... thread started by Ross Farnham of SDS on 12/24/2019... "Backup Battery Testing LiFePO4 vs. AGM"... http://www.vansairforce.com/community/showthread.php?t=178037 If you join VAF you can subscribe to the thread. -------- John Bright, RV-6A, at FWF, O-360, dual SDSEFI EM-5-F Dual Batt Dual Alt RV-6A SDS dual EM-5-F john_s_bright@yahoo.com, Newport News, Va Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494078#494078 ________________________________ Message 5 _____________________________________ Time: 04:00:18 PM PST US From: Charlie England Subject: Re: AeroElectric-List: Small diameter Taxi Light Needed On Sat, Dec 28, 2019 at 1:43 PM rparigoris wrote: > rparigor@hotmail.com> > > Hi Group I have a Europa XS with limited real estate on the cowl or EZ > mounting of a Taxi LED. I have a Kuntzleman 3" diameter Hockey Puck and > could mutilate the cowl and put a clear cover over it for a lot of work. > BTW the angle coverage of Kuntzleman is 2 degrees. It's just about marginal > for taxi. My build partner has a LED Headlight for his Mountain bike that > is nothing short of amazing. It has a hot spot ~ 15 degree angle and > incidental 25 degree coverage. It has a single large area of yellow LED > that's ~ 1.2" in diameter. I was comparing light from my Volvo station > wagon with H7 Halogen right only headlight, Kuntzleman and Bike Headlight. > Bike headlight is whiter, brighter, better coverage than either of the > other 2. The bike mfg says it measured a precise 1,000 Lumens, but for me > it seems that a lot of Mfg kinda stretch the truth. Acid test going out and > trying it and comparing works best for me. Amazing for 1.2". The problem is > it has a control that is not conducive! > for aircraft. Computer controls things including an innovative sense of > current at the LED. They drive it hard but control controls things great. > It runs off a single Lithium battery. Being very careful to try and drive > LED with a driver, worked OK sneaking up on current to match controller. > When shut off upon turn on burned out LED. Anyway my question: Does anyone > know of a small LED that is ~ 1.25" in diameter with wide angle and throws > out incredible light? Probably needs the precise current control circuit. > Can pretty EZ mount 2 on cowl. Aerosun sells a small LED but it only has a > 10 degree angle. Ron P. > > If you can live with 2" dia, search for 12Volt MR16 LED. The old halogen > versions are used as landing lights, so should be bright enough. Projection > angle can be selected from narrow spot to wide angle. If you must have the > smaller dia, try searching for XML-T6 flashlight or 'headlight'. There will > be some diy involved, but the smaller versions are roughly the dia you want. Charlie ________________________________ Message 6 _____________________________________ Time: 09:25:20 PM PST US From: Ernest Christley Subject: Re: AeroElectric-List: Small diameter Taxi Light Needed I made landing a marker lights with these. 20, 30 & 50 Watt LEDs | MPJA.COM | | | | | | | | | | | 20, 30 & 50 Watt LEDs | MPJA.COM | | | =C2-Also, add a LED turn signal controller, and you have nice strobe ligh ts. On Saturday, December 28, 2019, 2:38:58 PM EST, rparigoris wrote: m> Hi Group I have a Europa XS with limited real estate on the cowl or EZ moun ting of a Taxi LED. I have a Kuntzleman 3" diameter Hockey Puck and could m utilate the cowl and put a clear cover over it for a lot of work. BTW the a ngle coverage of Kuntzleman is 2 degrees. It's just about marginal for taxi .=C2- My build partner has a LED Headlight for his Mountain bike that is nothing short of amazing. It has a hot spot ~ 15 degree angle and incidenta l 25 degree coverage. It has a single large area of yellow LED that's ~ 1.2 " in diameter. I was comparing light from my Volvo station wagon with H7 Ha logen right only headlight, Kuntzleman and Bike Headlight. Bike headlight i s whiter, brighter, better coverage than either of the other 2. The bike mf g says it measured a precise 1,000 Lumens, but for me it seems that a lot o f Mfg kinda stretch the truth. Acid test going out and trying it and compar ing works best for me. Amazing for 1.2". The problem is it has a control th at is not conducive! =C2- for aircraft. Computer controls things including an innovative sense of current at the LED. They drive it hard but control controls things grea t. It runs off a single Lithium battery. Being very careful to try and driv e LED with a driver, worked OK sneaking up on current to match controller. When shut off upon turn on burned out LED. Anyway my question: Does anyone know of a small LED that is ~ 1.25" in diameter with wide angle and throws out incredible light? Probably needs the precise current control circuit. C an pretty EZ mount 2 on cowl. Aerosun sells a small LED but it only has a 1 0 degree angle. Ron P. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=494074#494074 =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. - S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. ------------------------------------------------------------------------------------- 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.