---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Fri 01/18/08: 23 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:39 AM - Re: ifr props (glen matejcek) 2. 11:16 AM - Re: Controlling defrost fans () 3. 11:35 AM - Re: Controlling defrost fans (PS) () 4. 11:42 AM - Improvements to "Hinged" wingtip installation (Fiveonepw@aol.com) 5. 01:42 PM - APRS tracking technology as alternative to SPOT (Bill Boyd) 6. 02:01 PM - Re: APRS tracking technology as alternative to SPOT (Scott) 7. 02:15 PM - Re: APRS tracking technology as alternative to SPOT (Bill Boyd) 8. 02:16 PM - Re: APRS tracking technology as alternative to SPOT (Bill Boyd) 9. 02:22 PM - Re: APRS tracking technology as alternative to SPOT (Chuck Jensen) 10. 02:48 PM - Re: APRS tracking technology as alternative to SPOT (Bill Boyd) 11. 02:51 PM - Re: APRS tracking technology as alternative to SPOT (Rob Prior) 12. 03:11 PM - Custom tank builder (rsipp@earthlink.net) 13. 03:40 PM - Garmin 296/396 losing location (Greg Young) 14. 03:42 PM - Re: Custom tank builder (Louis Willig) 15. 03:50 PM - Re: Custom tank builder (Dave Nellis) 16. 04:47 PM - Re: APRS tracking technology as alternative to SPOT (Scott) 17. 04:52 PM - Re: Garmin 296/396 losing location (David Burton) 18. 05:44 PM - Re: Improvements to "Hinged" wingtip installation (MLWynn@aol.com) 19. 07:13 PM - Re: APRS tracking technology as alternative to SPOT (Bill Boyd) 20. 07:56 PM - Re: Custom tank builder (Doug Weiler) 21. 08:29 PM - Re: APRS tracking technology as alternative to SPOT (Rob Prior) 22. 08:40 PM - Re: Custom tank builder (John Morgensen) 23. 09:06 PM - Re: Improvements to "Hinged" wingtip installation (Bret Smith) ________________________________ Message 1 _____________________________________ Time: 09:39:43 AM PST US From: "glen matejcek" Subject: RV-List: RE: ifr props Hi Bret- >Soo...I would not think this applied to experimentals with the special >airworthiness category. I concur. This ties in directly with the conversation over at aeroelectric where the topic is a particular fed requiring a 337 for GPS installations. The only thing on an experimental that is actually required to be TSO'd (certified) is a GPS that is used for terminal ops. Nothing else. Now, realistically, if one chooses to build their own com radio or transponder, proving TSO compliance could be a bit problematic. Actually GAINING a TSO is a separate issue, and relates to marketing and use in the certified world. It's curious how we, as a group, can get so caught up in the details of the bark of the particular tree we are looking at that we forget which forest we live in. As an aside / FYI, and if I recall correctly, one of the composite props I was familiar with had a metallic spar that ran virtually to the tip of the blade, and the other had wire mesh embedded in the outer strata of the blade. Both had nickel leading edges for rain / FOD protection, but also provided a conducting path for lightning. One of the two airplanes was a lightning magnet, and our company experienced many strikes, with no prop damage that I recall. Rudders, on the other hand..... Do not archive this particular ramble ;-) glen matejcek aerobubba@earthlink.ne ________________________________ Message 2 _____________________________________ Time: 11:16:23 AM PST US From: Subject: RV-List: Re: Controlling defrost fans I think ON/OFF is fine, but if you want to control it try a PWM (pulse width modulation) control "rheostat". http://solorb.com/elect/pwm/pwm1/ There are hobby kit's you can buy with all the parts and board, as well (google it). George >From: "Ralph E. Capen" >Subject: RV-List: Controlling defrost fans >I am wondering if a straight on-off switch is sufficient or should >I put in a rheostat to control the fan speed? KISS would dictate >that a simple on-off switch would work - but has anyone out >there wished for a half-speed? Thanks, Ralph --------------------------------- ________________________________ Message 3 _____________________________________ Time: 11:35:43 AM PST US From: Subject: RV-List: Re: Controlling defrost fans (PS) Here I looked up some ideas: http://solorb.com/elect/pwm/pwm1/ http://www.electronickits.com/kit/complete/motor/ck1400.htm http://www.electronickits.com/kit/complete/motor/k166.htm http://www.bakatronics.com/shop/item.asp?itemid=581 I think ON-OFF switch is fine. You will probably NEED all the air you can get from a little FAN. I suggest you get LARGER fans than what you have. You will get very little air from those tiny fans. Have you felt the air off of them? You will likely get a small 1.5" spot above the fan clear and that is it. That is not too great of a vis. I am debating putting any fan in at all. My back up is a cig lighter portable ceramic heater/fan window defroster heater and just throw it up there on the glare shield on the ground to get it defrosted. I might put some vents to allow the cabin heat & radio heat to rise up with natural convection. I'm thinking weight. I am not saying don't do it but I would get much bigger fans, and as far as speed control? I'd go with ON/OFF. You can add speed control later if you need or want it. George --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ________________________________ Message 4 _____________________________________ Time: 11:42:27 AM PST US From: Fiveonepw@aol.com Subject: RV-List: Improvements to "Hinged" wingtip installation For those of you who asked, I've added the complete prodedure for installing the wingtips with hinges to my ExperCraft website- go to: _http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=23961_ (http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=23961) Click Next Entry>> at the top of each page for the rest of it. There are 27 more pages, so if you want to slog through the whole thing, get comfy... 8-) Thanks again to Rob Riggen for making ExperCraft the excellent service it is! Find it here: _http://www.expercraft.com/_ (http://www.expercraft.com/) and my homepage: _http://websites.expercraft.com/n51pw/_ (http://websites.expercraft.com/n51pw/) >From The PossumWorks in TN, Mark Phillips, RV-6A "Mojo" **************Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489 ________________________________ Message 5 _____________________________________ Time: 01:42:37 PM PST US From: "Bill Boyd" Subject: RV-List: APRS tracking technology as alternative to SPOT I just replaced my APRS tracker in the RV with a more powerful 8 watt model, as the 300 mW unit was giving erratic results. If everything is programmed and calibrated properly, and if I can get the wheels to roll through the snow on the turf strip, I will be conducting a trial flight is a few minutes to check it out. The following link should enable tracking in real time. If all goes well, the last recorded flight track from November will be replaced with current data. http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 I should be airborne by 16:50 EST. Regards, -Stormy N30YD / N4DLN ________________________________ Message 6 _____________________________________ Time: 02:01:02 PM PST US From: Scott Subject: Re: RV-List: APRS tracking technology as alternative to SPOT I seeeeee you!! ;) Scott N0EDV http://corbenflyer.tripod.com/ Gotta Fly or Gonna Die Building RV-4 (Super Slow Build Version) Bill Boyd wrote: > I just replaced my APRS tracker in the RV with a more powerful 8 watt > model, as the 300 mW unit was giving erratic results. If everything > is programmed and calibrated properly, and if I can get the wheels to > roll through the snow on the turf strip, I will be conducting a trial > flight is a few minutes to check it out. > > The following link should enable tracking in real time. If all goes > well, the last recorded flight track from November will be replaced > with current data. > http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > > I should be airborne by 16:50 EST. > > Regards, > > -Stormy N30YD / N4DLN > > ________________________________ Message 7 _____________________________________ Time: 02:15:21 PM PST US From: "Bill Boyd" Subject: Re: RV-List: APRS tracking technology as alternative to SPOT Replying to my own post, here- too many things wrong with the flight so I stood down. Garmin 296 wouldn't lock onto more than 2 birds, and thought the local time was 11:36 AM, so it acts like the internal battery is going south (flown as recently as last week) - but the unit powers up fine on the bench using just its own battery, as I write this. Directional control on the snow was awful, even though there was lots of grass showing - just too much cover. I think I packed the wheel pants with snow in short order. I couldn't even hold brakes against a 1600 rpm run-up without sliding. When I was about 50% beyond my normal rotation point and still hadn't broken ground, weaving like a taildragger pilot in a crosswind (gulp!) I balked the takeoff. Barely had enough braking action to execute a 180 within the width of the strip. This is disappointing, since I wanted to fly tonight and wanted to demo the APRS, but I guess I get an "A" for decision making. Even if I had had hull coverage I don't think I could have felt good about completing that takeoff, knowing I'd have to return to that same runway in a few minutes and try to stop safely, possibly with frozen brake pads. The weather is supposed to turn here tonight, so that was probably my one window to fly for the next week or two. Snow expected again tomorrow and a deep freeze on top of that. Should stay mushy out there till about April even if the snow dissipates. Some days are like that. I'll post a heads-up if /when I try the airborne APRS again. Meanwhile I'm going to have harsh words with my 296. -Stormy On Jan 18, 2008 4:37 PM, Bill Boyd wrote: > I just replaced my APRS tracker in the RV with a more powerful 8 watt > model, as the 300 mW unit was giving erratic results. If everything is > programmed and calibrated properly, and if I can get the wheels to roll > through the snow on the turf strip, I will be conducting a trial flight is a > few minutes to check it out. > > The following link should enable tracking in real time. If all goes well, > the last recorded flight track from November will be replaced with current > data. http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > I should be airborne by 16:50 EST. > > Regards, > > -Stormy N30YD / N4DLN > > * > > * > > ________________________________ Message 8 _____________________________________ Time: 02:16:37 PM PST US From: "Bill Boyd" Subject: Re: RV-List: APRS tracking technology as alternative to SPOT You are looking at data from November 3rd, unfortunately :-) -Stormy On Jan 18, 2008 4:57 PM, Scott wrote: > > I seeeeee you!! ;) > > Scott N0EDV > http://corbenflyer.tripod.com/ > Gotta Fly or Gonna Die > Building RV-4 (Super Slow Build Version) > > > Bill Boyd wrote: > > > I just replaced my APRS tracker in the RV with a more powerful 8 watt > > model, as the 300 mW unit was giving erratic results. If everything > > is programmed and calibrated properly, and if I can get the wheels to > > roll through the snow on the turf strip, I will be conducting a trial > > flight is a few minutes to check it out. > > > > The following link should enable tracking in real time. If all goes > > well, the last recorded flight track from November will be replaced > > with current data. > > http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > > > > > I should be airborne by 16:50 EST. > > > > Regards, > > > > -Stormy N30YD / N4DLN > > > > > > > > > > > > ________________________________ Message 9 _____________________________________ Time: 02:22:44 PM PST US Subject: RE: RV-List: APRS tracking technology as alternative to SPOT From: "Chuck Jensen" Mmmmm, I clicked on the link and didn't see anything other than the map of the Lexington area...what am I missing? Chuck Jensen -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of Scott Sent: Friday, January 18, 2008 4:57 PM Subject: Re: RV-List: APRS tracking technology as alternative to SPOT I seeeeee you!! ;) Scott N0EDV http://corbenflyer.tripod.com/ Gotta Fly or Gonna Die Building RV-4 (Super Slow Build Version) Bill Boyd wrote: > I just replaced my APRS tracker in the RV with a more powerful 8 watt > model, as the 300 mW unit was giving erratic results. If everything > is programmed and calibrated properly, and if I can get the wheels to > roll through the snow on the turf strip, I will be conducting a trial > flight is a few minutes to check it out. > > The following link should enable tracking in real time. If all goes > well, the last recorded flight track from November will be replaced > with current data. > http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > > I should be airborne by 16:50 EST. > > Regards, > > -Stormy N30YD / N4DLN > > ________________________________ Message 10 ____________________________________ Time: 02:48:37 PM PST US From: "Bill Boyd" Subject: Re: RV-List: APRS tracking technology as alternative to SPOT Not sure, Chuck. Java scripts, maybe?? I just clicked on it and it displays a beautiful depiction of my figure-8 over Lexington. Unfortunately, that's not today's flight, which, as I posted a while ago, was aborted due to snow pack on the runway and lack of tundra tires on the RV :-) The 296 straightened itself out about 5 minutes after I lied to it and told it that I had stored it without batteries. It now shows correct local time and position. Pretty finicky for a $1400 unit that wants to moonlight as a doorstop. If it continues to misbehave I'm going to stop feeding it electrons and make it come to heel. -Stormy On Jan 18, 2008 5:18 PM, Chuck Jensen wrote: > > Mmmmm, I clicked on the link and didn't see anything other than the map of > the Lexington area...what am I missing? > > Chuck Jensen > > > -----Original Message----- > From: owner-rv-list-server@matronics.com > [mailto:owner-rv-list-server@matronics.com]On Behalf Of Scott > Sent: Friday, January 18, 2008 4:57 PM > To: rv-list@matronics.com > Subject: Re: RV-List: APRS tracking technology as alternative to SPOT > > > > I seeeeee you!! ;) > > Scott N0EDV > http://corbenflyer.tripod.com/ > Gotta Fly or Gonna Die > Building RV-4 (Super Slow Build Version) > > > Bill Boyd wrote: > > > I just replaced my APRS tracker in the RV with a more powerful 8 watt > > model, as the 300 mW unit was giving erratic results. If everything > > is programmed and calibrated properly, and if I can get the wheels to > > roll through the snow on the turf strip, I will be conducting a trial > > flight is a few minutes to check it out. > > > > The following link should enable tracking in real time. If all goes > > well, the last recorded flight track from November will be replaced > > with current data. > > http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > > > > > I should be airborne by 16:50 EST. > > > > Regards, > > > > -Stormy N30YD / N4DLN > > > > > > > > > > > > ________________________________ Message 11 ____________________________________ Time: 02:51:22 PM PST US From: "Rob Prior" Subject: Re: RV-List: APRS tracking technology as alternative to SPOT On 13:37 2008-01-18 "Bill Boyd" wrote: > I just replaced my APRS tracker in the RV with a more powerful 8 watt > model, as the 300 mW unit was giving erratic results. If everything > is programmed and calibrated properly, and if I can get the wheels to > roll through the snow on the turf strip, I will be conducting a trial > flight is a few minutes to check it out. That's pretty neat. So what's the coverage like? I think someone's previous post said that the range can be 100 miles, and the repeaters would take it from there? How dense are the repeaters? The main benefits of the SPOT system right now are the GPS coverage (effectively unbroken coverage across North America), and Satellite Phone uplink (ditto). -Rob ________________________________ Message 12 ____________________________________ Time: 03:11:41 PM PST US From: rsipp@earthlink.net Subject: RV-List: Custom tank builder Does anyone recall the name and contact information for the gentleman that builds and repairs fuel tanks? Thanks Dick Sipp ________________________________ Message 13 ____________________________________ Time: 03:40:53 PM PST US From: "Greg Young" Subject: RV-List: Garmin 296/396 losing location I hope your 296 doesn't keep going south like my 396. My 396 loses it's location almost every weekend - for sure if I miss a weekend flying. It takes 5-10 min to find itself if I tell it to use a new location - but at least it's still useable. I've talked to Garmin tech support a couple times and their drill is to get the latest software update and to purge the satellite almanac. Power up while holding the zoom out key for ~12 sec will flush the almanac (at least for the 396) and then leave it on in the open for 30-45 minutes to download a new one. That has not cured my problem so they tell me the next step is to send it in for the $350 flat rate repair... aaarrggghhh! Regards, Greg Young _____ From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Bill Boyd Sent: Friday, January 18, 2008 4:13 PM Subject: Re: RV-List: APRS tracking technology as alternative to SPOT Replying to my own post, here- too many things wrong with the flight so I stood down. Garmin 296 wouldn't lock onto more than 2 birds, and thought the local time was 11:36 AM, so it acts like the internal battery is going south (flown as recently as last week) - but the unit powers up fine on the bench using just its own battery, as I write this. Directional control on the snow was awful, even though there was lots of grass showing - just too much cover. I think I packed the wheel pants with snow in short order. I couldn't even hold brakes against a 1600 rpm run-up without sliding. When I was about 50% beyond my normal rotation point and still hadn't broken ground, weaving like a taildragger pilot in a crosswind (gulp!) I balked the takeoff. Barely had enough braking action to execute a 180 within the width of the strip. This is disappointing, since I wanted to fly tonight and wanted to demo the APRS, but I guess I get an "A" for decision making. Even if I had had hull coverage I don't think I could have felt good about completing that takeoff, knowing I'd have to return to that same runway in a few minutes and try to stop safely, possibly with frozen brake pads. The weather is supposed to turn here tonight, so that was probably my one window to fly for the next week or two. Snow expected again tomorrow and a deep freeze on top of that. Should stay mushy out there till about April even if the snow dissipates. Some days are like that. I'll post a heads-up if /when I try the airborne APRS again. Meanwhile I'm going to have harsh words with my 296. -Stormy ________________________________ Message 14 ____________________________________ Time: 03:42:40 PM PST US From: Louis Willig Subject: Re: RV-List: Custom tank builder Hi gang While we're on the subject of tanks... Mine has leaked from day one. Eight years ago. Every so often, like at annual time, I clean off the offending area and the A&P smears some goo on the leaking area. Well, its time to take the tank off and remove the leaking plate and maybe replace the sending unit. I have never done this. Is this a big job? Can any of you give me some suggestions? Like what to watch out for. Thank in advance. - Louis I Willig 1640 Oakwood Dr. Penn Valley, PA 19072 610 668-4964 RV-4, N180PF, 650 hrs. 190HP IO-360, C/S prop ________________________________ Message 15 ____________________________________ Time: 03:50:07 PM PST US From: Dave Nellis Subject: Re: RV-List: Custom tank builder Evan Johnson? www.evansaviationproducts.com Dave Nellis 7A wings in Mid Feb. --- rsipp@earthlink.net wrote: > > > > Does anyone recall the name and contact information > for the gentleman that builds and repairs fuel > tanks? > > Thanks > > Dick Sipp > > > browse > Un/Subscription, > FAQ, > > Forums! > > Admin. > > > > > Looking for last minute shopping deals? ________________________________ Message 16 ____________________________________ Time: 04:47:24 PM PST US From: Scott Subject: Re: RV-List: APRS tracking technology as alternative to SPOT Dangit! No wonder there's no snow on the ground! ;) Do Not Archive Scott http://corbenflyer.tripod.com/ Gotta Fly or Gonna Die Building RV-4 (Super Slow Build Version) Bill Boyd wrote: > You are looking at data from November 3rd, unfortunately :-) > > -Stormy > > On Jan 18, 2008 4:57 PM, Scott > wrote: > > > > > I seeeeee you!! ;) > > Scott N0EDV > http://corbenflyer.tripod.com/ > Gotta Fly or Gonna Die > Building RV-4 (Super Slow Build Version) > > > Bill Boyd wrote: > > > I just replaced my APRS tracker in the RV with a more powerful 8 > watt > > model, as the 300 mW unit was giving erratic results. If everything > > is programmed and calibrated properly, and if I can get the > wheels to > > roll through the snow on the turf strip, I will be conducting a > trial > > flight is a few minutes to check it out. > > > > The following link should enable tracking in real time. If all goes > > well, the last recorded flight track from November will be replaced > > with current data. > > http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > > < http://aprs.fi/?call=N30yd&mt=m&z=11&timerange=21600 > > > > > > I should be airborne by 16:50 EST. > > > > Regards, > > > > -Stormy N30YD / N4DLN > > > > > > > > > > ________________________________ Message 17 ____________________________________ Time: 04:52:23 PM PST US From: "David Burton" Subject: RE: RV-List: Garmin 296/396 losing location I hope your 296 doesn't keep going south like my 396. My 396 loses it's location almost every weekend - for sure if I miss a weekend flying. It takes 5-10 min to find itself if I tell it to use a new location - but at least it's still useable. I've talked to Garmin tech support a couple times and their drill is to get the latest software update and to purge the satellite almanac. Power up while holding the zoom out key for ~12 sec will flush the almanac (at least for the 396) and then leave it on in the open for 30-45 minutes to download a new one. That has not cured my problem so they tell me the next step is to send it in for the $350 flat rate repair... aaarrggghhh! Bummer. One of our 430s had the same issue after we got it back from sending it in for the WAAS upgrade and it had to go back to the factory. Fortunately it was under warranty. Any chance the internal battery is losing its steam? Does anybody know if the battery pack contributes to holding memory while the power is off? DaveB ________________________________ Message 18 ____________________________________ Time: 05:44:22 PM PST US From: MLWynn@aol.com Subject: Re: RV-List: Improvements to "Hinged" wingtip installation Mark, This is really useful and well documented. Thank you for taking the time to share your experience. I will let you know how mine come out. Regards, Michael Wynn RV 8 San Ramon In a message dated 1/18/2008 11:44:54 A.M. Pacific Standard Time, Fiveonepw@aol.com writes: For those of you who asked, I've added the complete prodedure for installing the wingtips with hinges to my ExperCraft website- go to: _http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=23961_ (http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=23961) Click Next Entry>> at the top of each page for the rest of it. There are 27 more pages, so if you want to slog through the whole thing, get comfy... 8-) Thanks again to Rob Riggen for making ExperCraft the excellent service it is! Find it here: _http://www.expercraft.com/_ (http://www.expercraft.com/) and my homepage: _http://websites.expercraft.com/n51pw/_ (http://websites.expercraft.com/n51pw/) >From The PossumWorks in TN, Mark Phillips, RV-6A "Mojo" ____________________________________ Start the year off right. _Easy ways to stay in shape_ (http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489) in the new year. (http://www.matronics.com/Navigator?RV-List) (http://www.matronics.com/contribution) **************Start the year off right. Easy ways to stay in shape. http://body.aol.com/fitness/winter-exercise?NCID=aolcmp00300000002489 ________________________________ Message 19 ____________________________________ Time: 07:13:11 PM PST US From: "Bill Boyd" Subject: Re: RV-List: APRS tracking technology as alternative to SPOT The repeater infrastructure is fairly good all across the country, I'm told. For aerial use, the repeater coverage is not really an issue because the line of sight is so good (in the absence of mountainous terrain obstructions.) All we need for internet tracking is to have the position packet make it to a single I-Gate station that posts it to the APRS web server. That's much simpler in many ways than trying to send a position report from one terrestrial station to another by a series of digipeater hops. I use a path of WIDE2-2 from the plane, which gives me 2 hops before the message dies. If any of the stations involved in either hop is an I-Gate, I'm golden - my packet is stored on the server from then on, to be recalled by whatever viewer one might use - even months later. The drawback to APRS is that there is no closed loop or acknowledgment of the packet sent back to the originating station, so one must simply hope that some of the blind (unproto) packets have gotten through. Make sense? I think the only real advantage that APRS might have over SPOT is the cost (free once you have the tracker). Well, fully implemented APRS, which I don't have and don't plan to set up in the plane, would allow two-way text messaging - I think the SPOT only allows one way. -Stormy On Jan 18, 2008 6:17 PM, Rob Prior wrote: > > On 13:37 2008-01-18 "Bill Boyd" wrote: > > I just replaced my APRS tracker in the RV with a more powerful 8 watt > > model, as the 300 mW unit was giving erratic results. If everything > > is programmed and calibrated properly, and if I can get the wheels to > > roll through the snow on the turf strip, I will be conducting a trial > > flight is a few minutes to check it out. > > That's pretty neat. > > So what's the coverage like? I think someone's previous post said that > the > range can be 100 miles, and the repeaters would take it from there? How > dense are the repeaters? > > The main benefits of the SPOT system right now are the GPS coverage > (effectively unbroken coverage across North America), and Satellite Phone > uplink (ditto). > > -Rob > > ________________________________ Message 20 ____________________________________ Time: 07:56:00 PM PST US Subject: Re: RV-List: Custom tank builder From: Doug Weiler I have done this a couple times. Carefully remove the tank cover with a wide blade putty knife. Remove sending unit. Clean all mating areas very well with lacquer thinner. Assuming the plate is not went or warped, get a new cork gasket from Van's. Get a new gasket for the new sending unit also. Be sure everything is very clean (PPG wax and greaser remover is good. Also Dupont 3812S reducer or Coleman Lantern Fuel). Seal all mating surfaces with PermaTex Aviation Form a Gasket (get it at your auto supply store). Use all new cork gaskets. Remount the sending unit and the larger tank cover using socket cap screws and washer. DO not over tighten them.. Just snug them up. Let the tanks sit for a couple days before reinstallation. I have never had a leak using Aviation Form A Gasket. Doug Weiler RV-4, N722DW, 450 hours On 1/18/08 5:39 PM, "Louis Willig" wrote: > > Hi gang > > While we're on the subject of tanks... > > Mine has leaked from day one. Eight years ago. Every so often, like > at annual time, I clean off the offending area and the A&P smears > some goo on the leaking area. Well, its time to take the tank off and > remove the leaking plate and maybe replace the sending unit. I have > never done this. Is this a big job? Can any of you give me some > suggestions? Like what to watch out for. > > Thank in advance. > > > > - > Louis I Willig > 1640 Oakwood Dr. > Penn Valley, PA 19072 > 610 668-4964 > RV-4, N180PF, 650 hrs. > 190HP IO-360, C/S prop > > > > > > ________________________________ Message 21 ____________________________________ Time: 08:29:35 PM PST US From: "Rob Prior" Subject: Re: RV-List: APRS tracking technology as alternative to SPOT On 19:07 2008-01-18 "Bill Boyd" wrote: > I think the only real advantage that APRS might have over SPOT is the > cost (free once you have the tracker). Well, fully implemented APRS, > which I don't have and don't plan to set up in the plane, would allow > two-way text messaging - I think the SPOT only allows one way. That's correct, and it's the one minor downside to the SPOT system. Messaging is one-way, and you have only three messages you can send ("I'm OK", "Friends, I need help", and "Send the cavalry", effectively). The major downside, as you point out, is the yearly cost. What's the weight of the hardware necessary for APRS? How easy would it be to remove from a downed plane if you needed to and/or decided to leave the crash site? One benefit of SPOT over ELT is that if you need to move, you can bring the beacon with you and trackers will know that you've moved and know where you are. -Rob ________________________________ Message 22 ____________________________________ Time: 08:40:10 PM PST US From: John Morgensen Subject: Re: RV-List: Custom tank builder Really dumb question... Do you take the tanks off of the wing first or do it in place? John Morgensen Doug Weiler wrote: > > I have done this a couple times. > > Carefully remove the tank cover with a wide blade putty knife. Remove > sending unit. > > Clean all mating areas very well with lacquer thinner. > > Assuming the plate is not went or warped, get a new cork gasket from Van's. > Get a new gasket for the new sending unit also. > > Be sure everything is very clean (PPG wax and greaser remover is good. Also > Dupont 3812S reducer or Coleman Lantern Fuel). > > Seal all mating surfaces with PermaTex Aviation Form a Gasket (get it at > your auto supply store). Use all new cork gaskets. > > Remount the sending unit and the larger tank cover using socket cap screws > and washer. DO not over tighten them.. Just snug them up. > > Let the tanks sit for a couple days before reinstallation. > > I have never had a leak using Aviation Form A Gasket. > > Doug Weiler > RV-4, N722DW, 450 hours > > > On 1/18/08 5:39 PM, "Louis Willig" wrote: > > >> >> Hi gang >> >> While we're on the subject of tanks... >> >> Mine has leaked from day one. Eight years ago. Every so often, like >> at annual time, I clean off the offending area and the A&P smears >> some goo on the leaking area. Well, its time to take the tank off and >> remove the leaking plate and maybe replace the sending unit. I have >> never done this. Is this a big job? Can any of you give me some >> suggestions? Like what to watch out for. >> >> Thank in advance. >> >> >> >> - >> Louis I Willig >> 1640 Oakwood Dr. >> Penn Valley, PA 19072 >> 610 668-4964 >> RV-4, N180PF, 650 hrs. >> 190HP IO-360, C/S prop >> >> >> >> >> >> >> > > > ________________________________ Message 23 ____________________________________ Time: 09:06:39 PM PST US From: "Bret Smith" Subject: RE: RV-List: Improvements to "Hinged" wingtip installation Very well done write-up Mark. It must have taken a week to write "hunt and peck" style. ;) I really think you should fly down to Georgia and do my wingtips. This would allow you to further refine your technique. Heck, I'll even slap some road kill on the grill and feed ya! How 'bout it? Bret Smith RV-9A N16BL Blue Ridge, Ga www.FlightInnovations.com _____ From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Fiveonepw@aol.com Sent: Friday, January 18, 2008 2:38 PM Subject: RV-List: Improvements to "Hinged" wingtip installation For those of you who asked, I've added the complete prodedure for installing the wingtips with hinges to my ExperCraft website- go to: http://websites.expercraft.com/n51pw/index.php?q=log_entry &log_id=23961 Click Next Entry>> at the top of each page for the rest of it. There are 27 more pages, so if you want to slog through the whole thing, get comfy... 8-) Thanks again to Rob Riggen for making ExperCraft the excellent service it is! Find it here: http://www.expercraft.com/ and my homepage: http://websites.expercraft.com/n51pw/ >From The PossumWorks in TN, Mark Phillips, RV-6A "Mojo" _____ Start the year off right. Easy ways to stay in shape in the new year. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-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/rv-list Browse Digests http://www.matronics.com/digest/rv-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.