RV-List Digest Archive

Sun 11/13/05


Total Messages Posted: 26



Today's Message Index:
----------------------
 
     1. 05:20 AM - Re: OT: AOPA flight planner?? (Jerry Calvert)
     2. 05:57 AM - Re: Dynon Failure Mode (Alex Peterson)
     3. 06:04 AM - Re: Dynon Failure Mode (Larry Pardue)
     4. 06:09 AM - Re: GPS problems (Ron Lee)
     5. 06:27 AM - Manual Fuel Level Measurement (DAVID REEL)
     6. 06:47 AM - Re: Dynon Failure Mode (Chuck Jensen)
     7. 06:55 AM - Cool Dynon Test (DAVID REEL)
     8. 06:58 AM - Re: Manual Fuel Level Measurement (Bill Schlatterer)
     9. 07:04 AM - Re: Re:Cowl flap (J. R. Dial)
    10. 07:12 AM - Re: OT: AOPA flight planner?? (James Clark)
    11. 07:26 AM - Re: Manual Fuel Level Measurement (Phil)
    12. 07:37 AM - Re: Re:Cowl flap (Mannan J. Thomason)
    13. 07:49 AM - GPS Problems (Bud Newhall)
    14. 08:40 AM - Re: GPS Problems (Jerry Springer)
    15. 08:43 AM - Re: stainless steel hole cutter (Dave Nellis)
    16. 08:47 AM - Re: Cool Dynon Test (Kevin Horton)
    17. 09:31 AM - Re: stainless steel hole cutter (Mickey Coggins)
    18. 10:38 AM - Re: Manual Fuel Level Measurement (Charlie England)
    19. 12:21 PM - Re: Cowl Flap ()
    20. 12:26 PM - Re: Manual Fuel Level Measurement (Dick DeCramer)
    21. 12:36 PM - Re:stainless steel hole cutter (Jerry2DT@aol.com)
    22. 02:36 PM - Re: Manual Fuel Level Measurement (Mickey Coggins)
    23. 05:11 PM - Re: Manual Fuel Level Measurement (linn walters)
    24. 07:12 PM - Re: Cool Dynon Test (Jeff Dowling)
    25. 08:26 PM - Re: Cool Dynon Test (Dave Bristol)
    26. 08:47 PM - Re: Cool Dynon Test (Mannan J. Thomason)
 
 
 


Message 1


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    Time: 05:20:43 AM PST US
    From: "Jerry Calvert" <rv6@cox.net>
    Subject: Re: OT: AOPA flight planner??
    --> RV-List message posted by: "Jerry Calvert" <rv6@cox.net> There was a time when I entered MS71 and it wouldn't chart the route because MS71 wasn't in the database. There have been some updates and now it works. Jerry Calvert Edmond Ok RV6 N296JC ----- Original Message ----- From: "Charlie England" <ceengland@bellsouth.net> Subject: Re: RV-List: OT: AOPA flight planner?? > --> RV-List message posted by: Charlie England <ceengland@bellsouth.net> > > Hmmmm, indeed. Zooming the map shown at startup will show MS71 but if I > click 'preflight' > 'plan route' & enter MS71 in either the departure or > destination field, it responds "No airport was found corresponding to > 'MS71....." Did it work for you entering the identifier on the plan > route popup? > > I've never used this flight planner before; the only reason I noticed > this is that I've had people tell me twice that they couldn't find it > using AOPA's flt planner. > > Charlie > > > James Clark wrote: > > >--> RV-List message posted by: James Clark <jclarkmail@gmail.com> > > > >Hmmmmm > > > >Worked for me!!! (AOPA RTFP) > > > >Seems that MS71 is on the 258 or 159 degree radial of the JACKSON VOR, > >Southeast of the OCARO intersection. > > > >It even knows it as Slobovia Outernational, 1 mile N or Pocahontas. > > > >James > > > > > >On 11/12/05, Charlie England <ceengland@bellsouth.net> wrote: > > > > > >>--> RV-List message posted by: Charlie England <ceengland@bellsouth.net> > >> > >>I've had a couple of folks say they can't find my home airport in the > >>AOPA 'real time flight planner'. > >> > >>I got around to trying it for the 1st time today, & sure enough, MS71 > >>isn't found. I then clicked on the 'help' tab and at around a half hour > >>or so, I'm still waiting for the 'help' file to load (around 17 megs, so > >>far). > >> > >>Not exactly 'real time' for those of us stuck with dialup.... > >> > >>Does anyone know if they only include airports for jet jockeys? > >> > >>Charlie > >> > >


    Message 2


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    Time: 05:57:41 AM PST US
    From: "Alex Peterson" <alexpeterson@earthlink.net>
    Subject: Dynon Failure Mode
    --> RV-List message posted by: "Alex Peterson" <alexpeterson@earthlink.net> > > Greetings: > > When I was evaluating the Dynon D-10A for purchase I decided > that one thing that made it compelling was the failure modes. > The mechanical gyro instruments tend to fail in a way that > makes them dangerous. If a vacuum pump fails, the > instruments slowly give worse and worse information. I had > worn mechanical gyro instruments that were inconsistent, > sometimes working fine and sometimes giving erroneous > readings. I figured the Dynon would either work or not. I was wrong. > > Today, after takeoff, I noticed the Dynon was not right, > first because zero rate of climb was indicated when I was > climbing about 1,500 fpm. Then I noticed more and more > problems. The indicated altitude was about 27,000 feet and > the airspeed was about 410 knots. My RV-6 is a high > performance airplane, but not that high performance. I > turned the instrument off and on several times. Nothing > helped. The heading seemed roughly correct but was not > stable and hunted through several tens of degrees. The > attitude indicator was sometimes about right and other times > drifted to completely wrong attitudes. > > All in all, this is disturbing to me. Guess I will contact > Dyon on Monday for advice and I am hoping I can just > reinstall system software or something. > > Larry Pardue > Carlsbad, NM Larry, sorry you are having troubles with the Dynon. While we can't possibly know what the failure rate for this system (or any other new EFIS) is yet, we must be humble to how difficult it is to design a device of this complexity with minimal failure potentials. I'm sure this will bring on the torches, but we seem to be in a period right now where there are more problems with the new EFIS systems than with the ancient mechanical systems they are replacing. This will change, of course, but be aware that this is often the nature of new technology. There are no free lunches. Alex Peterson RV6-A N66AP 690 hours Maple Grove, MN


    Message 3


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    Time: 06:04:39 AM PST US
    From: "Larry Pardue" <n5lp@warpdriveonline.com>
    Subject: Re: Dynon Failure Mode
    --> RV-List message posted by: "Larry Pardue" <n5lp@warpdriveonline.com> ----- Original Message ----- From: "Sam Buchanan" <sbuc@hiwaay.net> Subject: Re: RV-List: Dynon Failure Mode > --> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net> > > > Sorry you had problems with your Dynon. But it sounds like you > experienced exactly the kind of failure mode you expected from the > Dynon; the unit definitely wasn't working and there was no way you would > be tempted to use it as a flight reference. > Sam, That is true as far as airspeed and altitude, that I don't normally use on the Dynon and usually have turned off. The attitude indicator problem is pretty much like the failure you would get with a failed vacuum system. There is an indication that is slowly changing, sometimes near correct and sometimes way wrong. Larry Pardue Carlsbad, NM RV-6 N441LP Flying http://n5lp.net


    Message 4


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    Time: 06:09:28 AM PST US
    From: Ron Lee <ronlee@pcisys.net>
    Subject: Re: GPS problems
    --> RV-List message posted by: Ron Lee <ronlee@pcisys.net> >There have been references to the internal battery. That may be the case, >BUT, I seem to recal some time ago there was a change in the satellite >datastream and all older GPS's needed to be updated. Nope. You may be thinking of the GPS rollover a few years ago that some thought was similar to the year 2000 issues with computers.. Ron Lee


    Message 5


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    Time: 06:27:22 AM PST US
    From: "DAVID REEL" <dreel@cox.net>
    Subject: Manual Fuel Level Measurement
    --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> I'd like to put scratch marks on a pyrex tube every two gallons so I'll know how full my tanks really are. But I'm having a hard time finding a source for 1 foot of 1/4" pyrex tubing. Has anyone solved this problem? Dave Reel - RV8A


    Message 6


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    Time: 06:47:35 AM PST US
    Subject: Dynon Failure Mode
    From: "Chuck Jensen" <cjensen@dts9000.com>
    --> RV-List message posted by: "Chuck Jensen" <cjensen@dts9000.com> Alex, Everyone can agree that all of the EFIS have had some teething issues, some more than others. But if we consider all the instruments and systems a single EFIS/EIS replaces, or never were even available before, it would seem that the 'inop rate' is actually very low, especially for a sophisticated, complex instrument right out of the gate. If we tallied all the problems that we would have with the old individual instruments, I'm guessing the total would be significantly greater than what is seen with these new electronic systems. It gets noticed more when all the malfunctions that could possibly happen show up in one instruments...it may seem like a lot but doubt that it really is. Heck, the eInstruments for GA have only had 2-3 real years to sort things out. The aircraft industry has been perfecting the vacuum pump and instruments for decades and they still crap out with frustrating regularity, so I think we're making progress. Chuck Dual GRT EFIS (and satisfied with 'em) Larry, sorry you are having troubles with the Dynon. While we can't possibly know what the failure rate for this system (or any other new EFIS) is yet, we must be humble to how difficult it is to design a device of this complexity with minimal failure potentials. I'm sure this will bring on the torches, but we seem to be in a period right now where there are more problems with the new EFIS systems than with the ancient mechanical systems they are replacing. This will change, of course, but be aware that this is often the nature of new technology. There are no free lunches. Alex Peterson RV6-A N66AP 690 hours Maple Grove, MN


    Message 7


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    Time: 06:55:36 AM PST US
    From: "DAVID REEL" <dreel@cox.net>
    Subject: Cool Dynon Test
    --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> I just passed my transponder check which used my D10 as the encoder. The tester hooked up to the static input and reduced the pressure up to 15,000 feet. The D10, which deduces airspeed from pitot to static pressure difference, had me going 585 mph by the time I was up to 15,000. Shoot! I wanted to break Mach 1. But the tester dude was impressed that the Dynon didn't stop at a limit like a regular airspeed would. It was also interesting to see that the software does indeed use pressure differences in it's algorithms for attitude determination. On the way up to altitude, the horizon showed a descending left turn as I recall. On the way back down, a climbing left turn. Nuts. Now I can't remember but it might have been climbing & then descending. Anyway, it all smoothed out once the test static pressure returned to ambient. Dave Reel - RV8A


    Message 8


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    Time: 06:58:25 AM PST US
    From: "Bill Schlatterer" <billschlatterer@sbcglobal.net>
    Subject: Manual Fuel Level Measurement
    --> RV-List message posted by: "Bill Schlatterer" <billschlatterer@sbcglobal.net> Try Sportys October Catalog Page 33 11' and 16" universal fuel gauges Part #5304A 11.50 and 6109A 15.95 with calibration instructions. Bill S Do Not Archive -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com]On Behalf Of DAVID REEL Subject: RV-List: Manual Fuel Level Measurement --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> I'd like to put scratch marks on a pyrex tube every two gallons so I'll know how full my tanks really are. But I'm having a hard time finding a source for 1 foot of 1/4" pyrex tubing. Has anyone solved this problem? Dave Reel - RV8A


    Message 9


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    Time: 07:04:13 AM PST US
    From: "J. R. Dial" <jrdial@hal-pc.org>
    Subject: Re:Cowl flap
    --> RV-List message posted by: "J. R. Dial" <jrdial@hal-pc.org> What temp is the Veritherm supposed to open on a Lyc. O-360? DO NOT ARCHIVE -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Oldsfolks@aol.com Subject: RV-List: Re:Cowl flap --> RV-List message posted by: Oldsfolks@aol.com Pat; Does your engine have a Vernatherm valve in the oil system ? If so it may be sticking in the open position; this allows the oil to circulate through the cooler all the time. The Vernatherm valve allows oil through the cooler only when the temperature reaches a certain point. You can remove the Vernatherm valve and submerse it in a can of automatic transmission fluid , heated with a propane torch. You can put a candy thermometer in the can to keep track of the temperature up to 400 - 500 degrees. BE CAREFUL !! That is HOT !! You can see if the valve moves and what temperature it reaches when it moves. Bob Olds RV-4 , N1191X A&P , EAA Tech. Counselor Charleston,Arkansas Real Aviators Fly Taildraggers


    Message 10


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    Time: 07:12:52 AM PST US
    From: James Clark <jclarkmail@gmail.com>
    Subject: Re: OT: AOPA flight planner??
    --> RV-List message posted by: James Clark <jclarkmail@gmail.com> Make sure you have the latest version. I justentered MS71 in the airport field. James On 11/12/05, Charlie England <ceengland@bellsouth.net> wrote: > > --> RV-List message posted by: Charlie England <ceengland@bellsouth.net> > > Hmmmm, indeed. Zooming the map shown at startup will show MS71 but if I > click 'preflight' > 'plan route' & enter MS71 in either the departure or > destination field, it responds "No airport was found corresponding to > 'MS71....." Did it work for you entering the identifier on the plan > route popup? > > I've never used this flight planner before; the only reason I noticed > this is that I've had people tell me twice that they couldn't find it > using AOPA's flt planner. > > Charlie > > > James Clark wrote: > > >--> RV-List message posted by: James Clark <jclarkmail@gmail.com> > > > >Hmmmmm > > > >Worked for me!!! (AOPA RTFP) > > > >Seems that MS71 is on the 258 or 159 degree radial of the JACKSON VOR, > >Southeast of the OCARO intersection. > > > >It even knows it as Slobovia Outernational, 1 mile N or Pocahontas. > > > >James > > > > > >On 11/12/05, Charlie England <ceengland@bellsouth.net> wrote: > > > > > >>--> RV-List message posted by: Charlie England <ceengland@bellsouth.net> > >> > >>I've had a couple of folks say they can't find my home airport in the > >>AOPA 'real time flight planner'. > >> > >>I got around to trying it for the 1st time today, & sure enough, MS71 > >>isn't found. I then clicked on the 'help' tab and at around a half hour > >>or so, I'm still waiting for the 'help' file to load (around 17 megs, so > >>far). > >> > >>Not exactly 'real time' for those of us stuck with dialup.... > >> > >>Does anyone know if they only include airports for jet jockeys? > >> > >>Charlie > >> > > > , > > -- This is an alternate email. Please continue to email me at james@nextupventures.com .


    Message 11


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    Time: 07:26:44 AM PST US
    From: "Phil" <phatphill@comcast.net>
    Subject: Re: Manual Fuel Level Measurement
    --> RV-List message posted by: "Phil" <phatphill@comcast.net> I used a piece of 1/4" black rubber hose. Put a piece of 1/4" wood dowel inside to stiffen it. Made the marks with a small file. A ring all the way around every 5 gallons and a slash for each gallon. The first mark is 4 gallons. ----- Original Message ----- From: "DAVID REEL" <dreel@cox.net> Subject: RV-List: Manual Fuel Level Measurement > --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> > > I'd like to put scratch marks on a pyrex tube every two gallons so I'll know how full my tanks really are. But I'm having a hard time finding a source for 1 foot of 1/4" pyrex tubing. Has anyone solved this problem? > > Dave Reel - RV8A > >


    Message 12


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    Time: 07:37:08 AM PST US
    From: "Mannan J. Thomason" <mannanj@alltel.net>
    Subject: Re:Cowl flap
    --> RV-List message posted by: "Mannan J. Thomason" <mannanj@alltel.net> Should be stamped on the hex head near the Lyc part #. I believe mine was stamped 85 deg. C. Mannan Do not Archive. ----- Original Message ----- From: "J. R. Dial" <jrdial@hal-pc.org> Subject: RE: RV-List: Re:Cowl flap > --> RV-List message posted by: "J. R. Dial" <jrdial@hal-pc.org> > > > What temp is the Veritherm supposed to open on a Lyc. O-360? > DO NOT ARCHIVE > >


    Message 13


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    Time: 07:49:17 AM PST US
    From: Bud Newhall <RV-6@comcast.net>
    Subject: GPS Problems
    --> RV-List message posted by: Bud Newhall <RV-6@comcast.net> Thanks for all the advise. I knew the battery needed to be replaced but I thought it was only for backup. This GPS is supposed to run 4 hours on the battery in case of a power failure. I ordered a new battery online from Garmin. $60.00 Hope this solves my problem but if not it still needed the battery. Thank Bud


    Message 14


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    Time: 08:40:06 AM PST US
    From: Jerry Springer <jsflyrv@comcast.net>
    Subject: Re: GPS Problems
    --> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net> Bud Newhall wrote: >--> RV-List message posted by: Bud Newhall <RV-6@comcast.net> > >Thanks for all the advise. >I knew the battery needed to be replaced but I thought it was only for >backup. >This GPS is supposed to run 4 hours on the battery in case of a power >failure. >I ordered a new battery online from Garmin. $60.00 >Hope this solves my problem but if not it still needed the battery. > >Thank >Bud > > > > I am not familiar with your model of GPS, so I hope that is the battery you need. The battery I had to repalce was an internal battery that keeps all of the GPS information in memory. It is sort of like the internal battery in your computer that keeps information in your computer when it is not in use. Jerry do not archive


    Message 15


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    Time: 08:43:46 AM PST US
    From: Dave Nellis <truflite@yahoo.com>
    Subject: Re: stainless steel hole cutter
    --> RV-List message posted by: Dave Nellis <truflite@yahoo.com> Mickey, What grade of stainless are you cutting? 303 is easily machinable where 304 is near impossible to machine unless you use expensive carbide cutters and a lot of them. Ask me how I know. 303 can be cut with high speed tooling but I prefer carbide as it will usually stay sharp to finish the job. A machine shop will charge you $50 or more to set up the job and then the time to actually do the machining. And only when they have extra time to do it. Ask me how I know. I have a lathe and a mill in my basement so now I make my own parts when I can. Dave Nellis 7A N410DN (Res.) --- Mickey Coggins <mick-matronics@rv8.ch> wrote: > --> RV-List message posted by: Mickey Coggins > <mick-matronics@rv8.ch> > > Hi, > > I'm trying to cut about a 2" hole in about 1/8" > stainless steel, and found out that my trusty > fly cutter, which works so well on aluminum, has > a very hard time with SS. I was turning the > thing very slowly, with lots of oil and pressure, > but no dice. > > On Monday I'll probably take it to a machine > shop, but I was curious if there are any tips > or tricks that I'm missing. > > BTW, this will be for a firewall penetration > seal. > > Thanks, > Mickey > -- > Mickey Coggins > http://www.rv8.ch/ > #82007 finishing > > > do not archive > > > > Click on > about > provided > www.buildersbooks.com, > Admin. > _-> > browse > Subscriptions page, > FAQ, > > > > > > __________________________________


    Message 16


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    Time: 08:47:32 AM PST US
    From: Kevin Horton <khorton01@rogers.com>
    Subject: Re: Cool Dynon Test
    --> RV-List message posted by: Kevin Horton <khorton01@rogers.com> On 13 Nov 2005, at 09:41, DAVID REEL wrote: > --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> > > I just passed my transponder check which used my D10 as the > encoder. The tester hooked up to the static input and reduced the > pressure up to 15,000 feet. The D10, which deduces airspeed from > pitot to static pressure difference, had me going 585 mph by the > time I was up to 15,000. Shoot! I wanted to break Mach 1. But > the tester dude was impressed that the Dynon didn't stop at a limit > like a regular airspeed would. It was also interesting to see that > the software does indeed use pressure differences in it's > algorithms for attitude determination. On the way up to altitude, > the horizon showed a descending left turn as I recall. On the way > back down, a climbing left turn. Nuts. Now I can't remember but > it might have been climbing & then descending. Anyway, it all > smoothed out once the test static pressure returned to ambient. > As far as the pitch attitude goes, the Dynon uses airspeed info to compensate for acceleration errors. If the aircraft accelerates, the pitch attitude algorithm would incorrectly sense an attitude change. You can see this with a normal mechanical attitude indicator if you can accelerate quickly enough - it will show a false pitch attitude change. The Dynon EFIS looks at the airspeed changing, sees that you must be accelerating, so it adjusts the calculated pitch attitude to compensate for the error due to the acceleration. This is reported to work very well when the aircraft is flying. But, if you hook up the pitot-static system to a test set, so you can change the sensed airspeed on the ground, the EFIS is fooled. The displayed attitude will correct itself once the airspeed stabilizes at a constant value. As far as the bank goes, I'm not sure what would be going on there. Kevin Horton RV-8 (finishing kit) Ottawa, Canada http://www.kilohotel.com/rv8


    Message 17


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    Time: 09:31:12 AM PST US
    From: Mickey Coggins <mick-matronics@rv8.ch>
    Subject: Re: stainless steel hole cutter
    --> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch> Ouch. I don't really know what grade of stainless steel it is - I picked up a bunch of scrap SS from a junkyard for 3 dollars. I checked into the greenlee punches, and they look like they would work great, but they are rather expensive. I'm going to see how much the machine shop charges, and possibly try to find some thinner material. Thanks, guys, for all the hints. Mickey Dave Nellis wrote: > --> RV-List message posted by: Dave Nellis <truflite@yahoo.com> > > Mickey, > > What grade of stainless are you cutting? 303 is > easily machinable where 304 is near impossible to > machine unless you use expensive carbide cutters and a > lot of them. Ask me how I know. 303 can be cut with > high speed tooling but I prefer carbide as it will > usually stay sharp to finish the job. A machine shop > will charge you $50 or more to set up the job and then > the time to actually do the machining. And only when > they have extra time to do it. Ask me how I know. I > have a lathe and a mill in my basement so now I make > my own parts when I can. > > Dave Nellis > 7A N410DN (Res.) > > > --- Mickey Coggins <mick-matronics@rv8.ch> wrote: > > >>--> RV-List message posted by: Mickey Coggins >><mick-matronics@rv8.ch> >> >>Hi, >> >>I'm trying to cut about a 2" hole in about 1/8" >>stainless steel, and found out that my trusty >>fly cutter, which works so well on aluminum, has >>a very hard time with SS. I was turning the >>thing very slowly, with lots of oil and pressure, >>but no dice. >> >>On Monday I'll probably take it to a machine >>shop, but I was curious if there are any tips >>or tricks that I'm missing. >> >>BTW, this will be for a firewall penetration >>seal. >> >>Thanks, >>Mickey -- Mickey Coggins http://www.rv8.ch/ #82007 finishing do not archive


    Message 18


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    Time: 10:38:27 AM PST US
    From: Charlie England <ceengland@bellsouth.net>
    Subject: Re: Manual Fuel Level Measurement
    --> RV-List message posted by: Charlie England <ceengland@bellsouth.net> DAVID REEL wrote: >--> RV-List message posted by: "DAVID REEL" <dreel@cox.net> > >I'd like to put scratch marks on a pyrex tube every two gallons so I'll know how full my tanks really are. But I'm having a hard time finding a source for 1 foot of 1/4" pyrex tubing. Has anyone solved this problem? > >Dave Reel - RV8A > I've got one word for you: Plastic. (with apologies & condolences to those old enough to remember the reference) A foot of Tygon is easy to obtain, probably free if you ask a friend, & unbreakable. Mark it with a soldering iron or wood burner. Charlie


    Message 19


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    Time: 12:21:30 PM PST US
    From: <gmcjetpilot@yahoo.com>
    Subject: Re: Cowl Flap
    --> RV-List message posted by: <gmcjetpilot@yahoo.com> RV-4's cool all too well. I think you answered your question. Block oil cooler and block inlet. Not sure how you are blocking inlet but block the inner edge near the spinner. Make some aero shaped foam and tape it on. Crude but effective. In cold weather it is hard to get the RV-4 oil hot. Don't forget to lean below 75% power. If you want to make some more substantial and permanent change a cowl flap would be of benefit year round and make your RV faster. In an old RVator van shows how to make a cowl flap. If you get the last 16 years or what ever of the RVator it shows the concept. Blocking inlet and outlet has benefits. That is one reason the Sam James style cowl makes RV's 6mph or more faster. The stock RV cowl is a little fat on the inlet area for most operations. To be fair, van has to account for worst case conditions in very hot weather and hard long climbs. If you want to know more check out the Jamesaircraft yahoo group, and look at the first message in the group for the reason the cowl makes you go faster, while maintaining acceptable temps. G HE WROTE: From: PGLong@aol.com Subject: Cowl flap Looking to make a cowl flap that I can operate from the cockpit for my RV-4. Does anyone have any pictures or plan I might look at? I have my oil cooler blocked with aluminum tape and also restricted the cowl inlets approximately one third. Finally got my oil heated up to 185 F. Without the cowl inlets restricted, can only get about 120 F on the oil. Not sure whether to restrict the inlet or outlet flow. Any advice? Thanks in advance. Pat Long PGLong@aol.com N120PL RV4 Bay City, Michigan 3CM ---------------------------------


    Message 20


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    Time: 12:26:04 PM PST US
    From: "Dick DeCramer" <diesel@rconnect.com>
    Subject: Manual Fuel Level Measurement
    --> RV-List message posted by: "Dick DeCramer" <diesel@rconnect.com> I bought a piece of 1/2" rigid plastic PVC water pipe, some couplings (a tee, 090 degree, straight coupling)and glue which are all are very cheap at the local discount lumber yard. I used a 12" piece and notched it for a fuel dipstick, made two wheel chokes by forming a "U" using 90 degree couplings around each tire to fit beneath the wheel fairings as chocks, and oil an dipstick wrench. The dipstick is a "T" handle about 12" long and has a straight coupling to reinforce the bottom end with a cross notch cut to fit the thumb ears on the Lycoming dipstick This enables a person to easily reach deep into the cowl and still get enough leverage to loosen the dipstick without messing up your shirt sleeve. These tools are all glued together with PVC glue, weigh almost nothing, with a very little cost in time and $$$ so I have a set in the baggage area and also in the hangar. None of this tubing is clear rather it is a manila or off white but it is just as functional and very readily available. Dick DeCramer RV6 N500DD 97Hours Minnesota > [Original Message] > From: DAVID REEL <dreel@cox.net> > To: rvlist <rv-list@matronics.com> > Date: 11/13/2005 8:46:58 AM > Subject: RV-List: Manual Fuel Level Measurement > > --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> > > I'd like to put scratch marks on a pyrex tube every two gallons so I'll know how full my tanks really are. But I'm having a hard time finding a source for 1 foot of 1/4" pyrex tubing. Has anyone solved this problem? > > Dave Reel - RV8A > >


    Message 21


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    Time: 12:36:00 PM PST US
    From: Jerry2DT@aol.com
    Subject: Re:stainless steel hole cutter
    --> RV-List message posted by: Jerry2DT@aol.com Mickey... Why 1/8" SS? That's thick, tough and spendy to cut. I went to Target (Av Dept. of course) and bought some cheap stainless cookware and made firewall and exhaust shields from same. Pretty easy to cut with snips. After all, our firewalls are only .020 or so... Another technique to cut thin stainless is to go up to .75" with a step drill, then hog it out with die grinder and sanding drum (Harbor Freight) chucked in. This works well and leaves a clean hole. Radio shack and other electronics stores sell a nice little nibbler tool for $12 that makes short work of thin SS also... I'd be happy to mail you some surplus thin SS I have, just tell me how much you need. I have about a square foot I can spare... Jerry Cochran Wilsonville, OR


    Message 22


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    Time: 02:36:15 PM PST US
    From: Mickey Coggins <mick-matronics@rv8.ch>
    Subject: Re: Manual Fuel Level Measurement
    --> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch> > > I've got one word for you: Plastic. (with apologies & condolences to > those old enough to remember the reference) Am I really that old? http://www.imdb.com/title/tt0061722/quotes#qt0079973 :-) -- Mickey Coggins http://www.rv8.ch/ #82007 finishing do not archive


    Message 23


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    Time: 05:11:21 PM PST US
    From: linn walters <lwalters2@cfl.rr.com>
    Subject: Re: Manual Fuel Level Measurement
    --> RV-List message posted by: linn walters <lwalters2@cfl.rr.com> Mickey Coggins wrote: >--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch> > >>'ve got one word for you: Plastic. (with apologies & condolences to >>those old enough to remember the reference) >> >> > >Am I really that old? > You must be, because you knew where the link was!!! >http://www.imdb.com/title/tt0061722/quotes#qt0079973 > And I really appreciate it, because I must be older than you ...... and had to go to the link to be reminded!!! Thanks Mickey. And for those that still haven't a clue .... rent "The Graduate" ..... it's a hoot! Linn do not archive > >:-) > > > > Checked by AVG Free Edition.


    Message 24


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    Time: 07:12:19 PM PST US
    From: "Jeff Dowling" <shempdowling2@earthlink.net>
    Subject: Re: Cool Dynon Test
    --> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net> Can we please agree to put your reply on the top of the message? If you need to review what the original post regards, you can simply page down instead of everyone having to page down every message!! do not archive shemp ----- Original Message ----- From: "Kevin Horton" <khorton01@rogers.com> Subject: Re: RV-List: Cool Dynon Test > --> RV-List message posted by: Kevin Horton <khorton01@rogers.com> > > On 13 Nov 2005, at 09:41, DAVID REEL wrote: > >> --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> >> >> I just passed my transponder check which used my D10 as the >> encoder. The tester hooked up to the static input and reduced the >> pressure up to 15,000 feet. The D10, which deduces airspeed from >> pitot to static pressure difference, had me going 585 mph by the >> time I was up to 15,000. Shoot! I wanted to break Mach 1. But >> the tester dude was impressed that the Dynon didn't stop at a limit >> like a regular airspeed would. It was also interesting to see that >> the software does indeed use pressure differences in it's >> algorithms for attitude determination. On the way up to altitude, >> the horizon showed a descending left turn as I recall. On the way >> back down, a climbing left turn. Nuts. Now I can't remember but >> it might have been climbing & then descending. Anyway, it all >> smoothed out once the test static pressure returned to ambient. >> > > As far as the pitch attitude goes, the Dynon uses airspeed info to > compensate for acceleration errors. If the aircraft accelerates, the > pitch attitude algorithm would incorrectly sense an attitude change. > You can see this with a normal mechanical attitude indicator if you > can accelerate quickly enough - it will show a false pitch attitude > change. The Dynon EFIS looks at the airspeed changing, sees that you > must be accelerating, so it adjusts the calculated pitch attitude to > compensate for the error due to the acceleration. This is reported > to work very well when the aircraft is flying. But, if you hook up > the pitot-static system to a test set, so you can change the sensed > airspeed on the ground, the EFIS is fooled. The displayed attitude > will correct itself once the airspeed stabilizes at a constant value. > > As far as the bank goes, I'm not sure what would be going on there. > > Kevin Horton RV-8 (finishing kit) > Ottawa, Canada > http://www.kilohotel.com/rv8 > > >


    Message 25


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    Time: 08:26:07 PM PST US
    From: Dave Bristol <dbris200@sbcglobal.net>
    Subject: Re: Cool Dynon Test
    --> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net> Oops, you might as well have asked about primer or tailwheels! (btw,I agree) { : > ) do not archive Jeff Dowling wrote: >--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net> > >Can we please agree to put your reply on the top of the message? If you >need to review what the original post regards, you can simply page down >instead of everyone having to page down every message!! > >do not archive >shemp > >----- Original Message ----- >From: "Kevin Horton" <khorton01@rogers.com> >To: <rv-list@matronics.com> >Subject: Re: RV-List: Cool Dynon Test > > > > >>--> RV-List message posted by: Kevin Horton <khorton01@rogers.com> >> >>On 13 Nov 2005, at 09:41, DAVID REEL wrote: >> >> >> >>>--> RV-List message posted by: "DAVID REEL" <dreel@cox.net> >>> >>>I just passed my transponder check which used my D10 as the >>>encoder. The tester hooked up to the static input and reduced the >>>pressure up to 15,000 feet. The D10, which deduces airspeed from >>>pitot to static pressure difference, had me going 585 mph by the >>>time I was up to 15,000. Shoot! I wanted to break Mach 1. But >>>the tester dude was impressed that the Dynon didn't stop at a limit >>>like a regular airspeed would. It was also interesting to see that >>>the software does indeed use pressure differences in it's >>>algorithms for attitude determination. On the way up to altitude, >>>the horizon showed a descending left turn as I recall. On the way >>>back down, a climbing left turn. Nuts. Now I can't remember but >>>it might have been climbing & then descending. Anyway, it all >>>smoothed out once the test static pressure returned to ambient. >>> >>> >>> >>As far as the pitch attitude goes, the Dynon uses airspeed info to >>compensate for acceleration errors. If the aircraft accelerates, the >>pitch attitude algorithm would incorrectly sense an attitude change. >>You can see this with a normal mechanical attitude indicator if you >>can accelerate quickly enough - it will show a false pitch attitude >>change. The Dynon EFIS looks at the airspeed changing, sees that you >>must be accelerating, so it adjusts the calculated pitch attitude to >>compensate for the error due to the acceleration. This is reported >>to work very well when the aircraft is flying. But, if you hook up >>the pitot-static system to a test set, so you can change the sensed >>airspeed on the ground, the EFIS is fooled. The displayed attitude >>will correct itself once the airspeed stabilizes at a constant value. >> >>As far as the bank goes, I'm not sure what would be going on there. >> >>Kevin Horton RV-8 (finishing kit) >>Ottawa, Canada >>http://www.kilohotel.com/rv8 >> >> >> >> >> > > > >


    Message 26


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    Time: 08:47:57 PM PST US
    From: "Mannan J. Thomason" <mannanj@alltel.net>
    Subject: Re: Cool Dynon Test
    --> RV-List message posted by: "Mannan J. Thomason" <mannanj@alltel.net> I see the List Police are at it again! Chill out!!!!! I've been lurking ont this list for a couple of years and I continually see people brought up short for totally insignificant breaches of list etiquite (sp)? and a lot of questionable and error ridden answers to questions. How do I know? I've been a builder and mechanic for over 30 years. How about trying to keep the chatter relevant to building and helping "newbies" with legitimate help. Nomex coveralls under my asbestos suit. No malace intended. Mannan Do Not Archive ----- Original Message ----- From: "Jeff Dowling" <shempdowling2@earthlink.net> Subject: Re: RV-List: Cool Dynon Test > --> RV-List message posted by: "Jeff Dowling" > <shempdowling2@earthlink.net> > > Can we please agree to put your reply on the top of the message? If you > need to review what the original post regards, you can simply page down > instead of everyone having to page down every message!! > > do not archive > shemp > > ----- Original Message ----- > From: "Kevin Horton" <khorton01@rogers.com> > To: <rv-list@matronics.com> > Subject: Re: RV-List: Cool Dynon Test > > >> --> RV-List message posted by: Kevin Horton <khorton01@rogers.com> >> >> On 13 Nov 2005, at 09:41, DAVID REEL wrote: >> >>> --> RV-List message posted by: "DAVID REEL" <dreel@cox.net> >>> >>> I just passed my transponder check which used my D10 as the >>> encoder. The tester hooked up to the static input and reduced the >>> pressure up to 15,000 feet. The D10, which deduces airspeed from >>> pitot to static pressure difference, had me going 585 mph by the >>> time I was up to 15,000. Shoot! I wanted to break Mach 1. But >>> the tester dude was impressed that the Dynon didn't stop at a limit >>> like a regular airspeed would. It was also interesting to see that >>> the software does indeed use pressure differences in it's >>> algorithms for attitude determination. On the way up to altitude, >>> the horizon showed a descending left turn as I recall. On the way >>> back down, a climbing left turn. Nuts. Now I can't remember but >>> it might have been climbing & then descending. Anyway, it all >>> smoothed out once the test static pressure returned to ambient. >>> >> >> As far as the pitch attitude goes, the Dynon uses airspeed info to >> compensate for acceleration errors. If the aircraft accelerates, the >> pitch attitude algorithm would incorrectly sense an attitude change. >> You can see this with a normal mechanical attitude indicator if you >> can accelerate quickly enough - it will show a false pitch attitude >> change. The Dynon EFIS looks at the airspeed changing, sees that you >> must be accelerating, so it adjusts the calculated pitch attitude to >> compensate for the error due to the acceleration. This is reported >> to work very well when the aircraft is flying. But, if you hook up >> the pitot-static system to a test set, so you can change the sensed >> airspeed on the ground, the EFIS is fooled. The displayed attitude >> will correct itself once the airspeed stabilizes at a constant value. >> >> As far as the bank goes, I'm not sure what would be going on there. >> >> Kevin Horton RV-8 (finishing kit) >> Ottawa, Canada >> http://www.kilohotel.com/rv8 >> >> >> > > >




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