KR> Narco ELT-10 battery corrosion
Could it be that you should be grounding the ELT case to the aluminum plate after all? That way there would be no difference of potential and no electrolysis. - Original Message - From: "Oscar Zuniga" To: "Pietenpol List" ; Sent: Monday, October 13, 2008 9:51 PM Subject: KR> Narco ELT-10 battery corrosion Question for you electronics geeks. I have an older Narco ELT (yes, it's the honkin' big orange thing that only xmits on 121.5). When my Piet went over on its nose a few years ago, the ELT didn't go off but the incident was sufficient to make me replace the battery since I'm an FAR-abiding pilot and aircraft owner and that's what the FARs call for. I replaced the battery with a brand new Airtex replacement from Chief Aircraft and reinstalled the ELT in a better location (behind the pilot's seat), secured it on the ground plane (a large flat piece of aluminum behind the pilot's seat), and we're good to go again. Now the problem. About two years later, there is a white powdery corrosion showing up under the ELT, mostly under the battery where it sits on the aluminum ground plane. Mind you, I painted the aluminum with an epoxy paint before the installation and the battery housing is thick orange plastic, so there really isn't anything electrical touching anything metallic. So what am I doing wrong? Should I replace the battery and reinstall the unit with a rubber cushion between it and the ground plane that it's installed on (along with the ELT antenna)? I guess it really doesn't matter since nobody will hear the tree fall in the forest after next February anyway, as long as I stay on 121.5 Mhz ;o) Oscar Zuniga Air Camper NX41CC San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR> Narco ELT-10 battery corrosion
Question for you electronics geeks. I have an older Narco ELT (yes, it's the honkin' big orange thing that only xmits on 121.5). When my Piet went over on its nose a few years ago, the ELT didn't go off but the incident was sufficient to make me replace the battery since I'm an FAR-abiding pilot and aircraft owner and that's what the FARs call for. I replaced the battery with a brand new Airtex replacement from Chief Aircraft and reinstalled the ELT in a better location (behind the pilot's seat), secured it on the ground plane (a large flat piece of aluminum behind the pilot's seat), and we're good to go again. Now the problem. About two years later, there is a white powdery corrosion showing up under the ELT, mostly under the battery where it sits on the aluminum ground plane. Mind you, I painted the aluminum with an epoxy paint before the installation and the battery housing is thick orange plastic, so there really isn't anything electrical touching anything metallic. So what am I doing wrong? Should I replace the battery and reinstall the unit with a rubber cushion between it and the ground plane that it's installed on (along with the ELT antenna)? I guess it really doesn't matter since nobody will hear the tree fall in the forest after next February anyway, as long as I stay on 121.5 Mhz ;o) Oscar Zuniga Air Camper NX41CC San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net
KR> Glassing over filler.
>- Original Message - >From: "MICHAEL SYLVESTER" >A question that I have been meaning to ask is, Let's say that your sanding >your turtle deck >and you sand through the glass in some spots. Do you just >put another layer of glass on the >whole thing or can you just cover the >thin spots and try to blend them in ? Simply cover the thin spots, feather them in and keep on building. Mark Jones (N886MJ) Stevens Point, WI Web page: www.flykr2s.com e-mail: flyk...@charter.net
KR> Glassing over filler.
Hey Guys,A question that I have been meaning to ask is, Let's say that your sanding your turtle deck and you sand through the glass in some spots. Do you just put another layer of glass on the whole thing or can you just cover the thin spots and try to blend them in ?Mike Sylvester kr2s builder Birmingham,AL. Cell no.205-966-3854 _ See how Windows Mobile brings your life together?at home, work, or on the go. http://clk.atdmt.com/MRT/go/msnnkwxp1020093182mrt/direct/01/
KR> N886MJ Flies Again!
> Here ya go: http://www.flykr2s.com/photo.html > > Mark Jones (N886MJ) Looks good, sure hope it proves to a viable 5th bearing setup. -- Eric Pitts Terre Haute Ind. http://eric.pitts.mystarband.net
KR> KR1B
At 05:12 PM 10/13/2008, you wrote: >I have a KR1 modified. What is a KR1B? > >John Edwards A KR1B is a KR1 with long wings. I believe there are still plans available. Check out the Rand Robinson web page at http://www.fly-kr.com/ and look under the KR1. Larry Flesner
KR> KR1B
James Neely wrote: >I see very little about the KR1B anywhere. Is this an"orphan"? Is it a > "dog"? I would think that the fact that no one seems to have built one > suggests that it's not a good choice. To my knowlege, only one KR1B was ever built and flown, and it was the prototype. For those who've lost their medical, a motor glider would appear to be the ticket, unless they've changed the rules for motorgliders recently... Mark Langford, Huntsville, AL website: www.n5...@hiwaay.net email: N56ML at hiwaay.net
KR> KR1B
I have a KR1 modified. What is a KR1B? John Edwards at mykitlog.com/kapowsin James Neely wrote: > I see very little about the KR1B anywhere. Is this an"orphan"? Is it a > "dog"? I would think that the fact that no one seems to have built one > suggests that it's not a good choice. > Has anyone any more info on it? I keep looking at it thinking it might be a > nice project, but bitter experience with the American Eaglet many years ago > makes me cautious. > James >
KR> KR1B
I see very little about the KR1B anywhere. Is this an"orphan"? Is it a "dog"? I would think that the fact that no one seems to have built one suggests that it's not a good choice. Has anyone any more info on it? I keep looking at it thinking it might be a nice project, but bitter experience with the American Eaglet many years ago makes me cautious. James -- I do not fear the deep! I do not fear the cold! I do not fear the dark! For I am a Great Lakes Diver!
KR> N886MJ Flies Again!
>Mark, where are the pix's of your engine and great job! >Eric Pitts Here ya go: http://www.flykr2s.com/photo.html Mark Jones (N886MJ) Stevens Point, WI Web page: www.flykr2s.com e-mail: flyk...@charter.net
KR> engine dies after takeoff w/ram air
Has annyboddy checked the humiddity at the time? Could verry well be CARB-ICE!! You can get Carb-ice on an 80F day,and most experimentals don't have annywhere near suffitiant heat available to cope with it! (at 75% Power You have to get an increase of 80F or 50C when applied to have adaquate) Meinolf - Original Message - From: "Martek Mississippi" To: "KRnet" Sent: Monday, October 13, 2008 4:46 AM Subject: Re: KR> engine dies after takeoff w/ram air - Original Message - From: "John Gotschall" To: "KRnet" Sent: Monday, October 13, 2008 2:10 AM Subject: KR> engine dies after takeoff w/ram air I read some posts about a few planes that went down after takeoff, immediately after adding ram air to an otherwise working setup. A few mentioned that they thought the fuel mixture leaned out sometime after reaching 100+ mph indicated. While working on my kr and thinking about these power loss problems, it occured to me that the pressure problem might happen to a float or non-float carb. Is it possible that the ram air pressure is sufficient to pressurize the carb to the point that the fuel gets pushed back into the tank (non-float) or air could push it's way through the main jet and into the float bowl (float type)? In the event the ram air actually pressurizes the carbureator wouldn't it then be necessary to have equalizing pressure applied to pretty much the entire fuel system? Suppose you pressure equalized the float bowl, only to learn that there is sufficient pressure in the bowl to keep new fuel from entering the bowl? jg ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html -- No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.8.0/1721 - Release Date: 10/12/2008 12:00 PM
KR> engine dies after takeoff w/ram air
- Original Message - From: "John Gotschall" To: "KRnet" Sent: Monday, October 13, 2008 2:10 AM Subject: KR> engine dies after takeoff w/ram air I read some posts about a few planes that went down after takeoff, immediately after adding ram air to an otherwise working setup. A few mentioned that they thought the fuel mixture leaned out sometime after reaching 100+ mph indicated. While working on my kr and thinking about these power loss problems, it occured to me that the pressure problem might happen to a float or non-float carb. Is it possible that the ram air pressure is sufficient to pressurize the carb to the point that the fuel gets pushed back into the tank (non-float) or air could push it's way through the main jet and into the float bowl (float type)? In the event the ram air actually pressurizes the carbureator wouldn't it then be necessary to have equalizing pressure applied to pretty much the entire fuel system? Suppose you pressure equalized the float bowl, only to learn that there is sufficient pressure in the bowl to keep new fuel from entering the bowl? jg ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR> engine dies after takeoff w/ram air
I read some posts about a few planes that went down after takeoff, immediately after adding ram air to an otherwise working setup. A few mentioned that they thought the fuel mixture leaned out sometime after reaching 100+ mph indicated. While working on my kr and thinking about these power loss problems, it occured to me that the pressure problem might happen to a float or non-float carb. Is it possible that the ram air pressure is sufficient to pressurize the carb to the point that the fuel gets pushed back into the tank (non-float) or air could push it's way through the main jet and into the float bowl (float type)? In the event the ram air actually pressurizes the carbureator wouldn't it then be necessary to have equalizing pressure applied to pretty much the entire fuel system? Suppose you pressure equalized the float bowl, only to learn that there is sufficient pressure in the bowl to keep new fuel from entering the bowl? jg
