RV-List Digest Archive

Sat 11/29/08


Total Messages Posted: 10



Today's Message Index:
----------------------
 
     0. 12:25 AM - What Listers Have Been Saying (Matt Dralle)
     1. 02:17 AM - flat tire vs. wheel fairing (Moore, Robert)
     2. 06:06 AM - Re: flat tire vs. wheel fairing (sheldon barrett)
     3. 07:01 AM - Re: flat tire vs. wheel fairing (tom sargent)
     4. 07:16 AM - Re: flat tire vs. wheel fairing (sheldon barrett)
     5. 08:10 AM - Re: flat tire vs. wheel fairing (Tomasz Korwel)
     6. 09:46 AM - Re: flat tire vs. wheel fairing (Terry Watson)
     7. 10:17 AM - Re: flat tire vs. wheel fairing (John Cox)
     8. 09:50 PM - Brake line tubing flaring (dan@rdan.com)
     9. 10:24 PM - Re: Brake line tubing flaring (Bruce Gray)
 
 
 


Message 0


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    Time: 12:25:50 AM PST US
    From: Matt Dralle <dralle@matronics.com>
    Subject: What Listers Have Been Saying
    Wow! Many of the members making a List Support Contribution this year have been using the Comments field to leave a personal message about the Lists. Thank you! I have included a number of them below. Please read over a few and see if you perhaps can echo some of the same sentiments regarding the value of the Lists to you... There is only a couple more days left for this year's List Fund Raiser and we're still way behind previous years. If you've been waiting until the last minute to show your support, Now is the Time! Please make your Contribution and pick up a great gift at the same time! By Credit Card or Paypal: http://www.matronics.com/contribution or By Personal Check: Matronics / Matt Dralle PO Box 347 Livermore, CA 94550-7227 Thank you in advance!! Matt Dralle Email List and Forums Administrator Here is some of the great feedback members have been including along with their personal Contributions this year... Over the years, the info I have received from the RV-List has saved me thousands of dollars, and dozens of hours of time by helping me avoid bad purchases, pointing me at vendors with low prices and excellent support, and providing solutions to the typical head scratchers that you run into. Kevin H Valuable service. Best List(s) on the Internet! George A Please accept this token not as an indicator of what this list has been worth to me this past year. Lew G Great information and entertainment. Tim V Thanks again for another great year of service. This project would be beyond me if it were not for the list. Moreover, the friendships I have found are worth their weight in GOLD! Robert B Great support you provide to all the subscribers! Freddie H Read it every day. PF B Thanks for your excellent management of the Matronics Lists! Your services are head and shoulders above the rest. James M Without the "List", there would be no Kolb "community". Bill T Thanks, Matt, for a great service! I've been monitoring and using the lists since 1999. Richard D Thanks for such a terrific site and for all the work and effort you put into it. John R A great service year after year. John D ..another year of fantastic service. Jerry B This list is a great resource. Arden A Great list. James M Lists were a great help while building HRII N561FS. John S Great resources for both the beginner and experienced. George R Good service. Gary G The List is an invaluable resource! William C AeroElectric list is a great source of info and learning! Janice J Thank you, Matt for being there for us making it all happen on the List for so many years - Great JOB! Sam S Thank you for providing a great venue. You definitely hit the nail on the head with your solicitation asking if readers look forward to receiving the email digests. I certainly do and when I move from a dreamer to a builder, I expect the anticipation will only increase. Joe S Thanks for a Perfect working list. Hans-Peter R Great List Bryan K Such a great selection of valuable forums! David G Nice job! Walt E Good resource... Robert P Thank you for another great year! Scott S I could not do this without you... Robert D I believe I've been a list member for over a decade now. Thanks for the service! Tim L Great List Hendrik W


    Message 1


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    Time: 02:17:26 AM PST US
    From: "Moore, Robert" <Robert.Moore@axcelis.com>
    Subject: flat tire vs. wheel fairing
    Your message doesn't make sense. "while tires with leaks go dead flat in the hanger they don,t go dead flat in the air since there is no compression on the tire in flight." If a tire is at, say, 32 psi isn't it at 32 psi whether it's jacked up in the air or has the weight of the airplane pressing on it? And if it's going to leak it will be leaking due to the pressure differential between inside the tire and outside the tire (in this case 32psi). It's been a long night and if I missed something obvious I will apologize now before the flames start flying. Bob ________________________________ Message 2 _____________________________________ Time: 02:15:01 PM PST US From: RICHARD MILLER <rickpegser@yahoo.com> Subject: Re: RV-List: flat tire vs. wheel fairing landing with a flat will do a hell of a lot more damage then just the fairing. can you say ground loop. while tires with leaks go dead flat in the hanger they don,t go dead flat in the air since there is no compression on the tire in flight. so normally you end up with a low pressure tire at the end of the flight.and can control it. rick


    Message 2


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    Time: 06:06:11 AM PST US
    From: "sheldon barrett" <sheldonb@frontiernet.net>
    Subject: Re: flat tire vs. wheel fairing
    I had my nose wheel tire go flat on my 6A also... Normal landing... pulled off the strip onto the taxi way... Flat!... Not sure just when it went flat... but couldn't move the plane for the tire was wedged against the pant... Local RV'ers came to the rescue.. Lucky I keep a spare tube onboard... Back in the air within an hour... Only thing I could see on the tube, was a very small pin hole... Not even sure if this was the cause.. for the tire/tube was fine for a year before... I did enlarge the opening some on the pant... Sheldon (RV6A 500 hrs) ----- Original Message ----- From: "Sam Buchanan" <sbuc@hiwaay.net> Sent: Friday, November 28, 2008 10:09 PM Subject: Re: RV-List: flat tire vs. wheel fairing > > RICHARD MILLER wrote: >> >> landing with a flat will do a hell of a lot more damage then just the >> fairing. can you say ground loop. while tires with leaks go dead flat >> in the hanger they don,t go dead flat in the air since there is no >> compression on the tire in flight. so normally you end up with a low >> pressure tire at the end of the flight.and can control it. >> >> rick > > In our local group we have seen two instances of RV-6A nose wheel tires > either going flat enroute or immediately on touchdown, hard to know which. > In both cases the tires could be pumped up enough to taxi the plane back > to the hangar. > > The RV nose gear tubes are strange animals and seem to go flat with no > warning and sometimes for hard to determine reasons. Nose rollers need to > be sure they carry a spare tube in the plane because the Lamb tube is hard > to find. > > Sam Buchanan > > http://thervjournal.com > > >


    Message 3


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    Time: 07:01:44 AM PST US
    From: tom sargent <sarg314@comcast.net>
    Subject: Re: flat tire vs. wheel fairing
    Sheldon: Did the tire going flat damage the wheel fairing? sheldon barrett wrote: > > I had my nose wheel tire go flat on my 6A also... Normal landing... > pulled off the strip onto the taxi way... Flat!... Not sure just when it > went flat... but couldn't move the plane for the tire was wedged against > the pant... Local RV'ers came to the rescue.. Lucky I keep a spare tube > onboard... Back in the air within an hour... Only thing I could see on > the tube, was a very small pin hole... Not even sure if this was the > cause.. for the tire/tube was fine for a year before... I did enlarge > the opening some on the pant... > Sheldon (RV6A 500 hrs)


    Message 4


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    Time: 07:16:13 AM PST US
    From: "sheldon barrett" <sheldonb@frontiernet.net>
    Subject: Re: flat tire vs. wheel fairing
    Just a little... in that the flat tire rubbed against the wheel fairing opening and gouged the edge some... otherwise, no other damage to the pant... The gouges gave me a clue as to where to enlarge the wheel opening in the pant... Sheldon ----- Original Message ----- From: "tom sargent" <sarg314@comcast.net> Sent: Saturday, November 29, 2008 7:59 AM Subject: Re: RV-List: flat tire vs. wheel fairing > > Sheldon: > Did the tire going flat damage the wheel fairing? > > sheldon barrett wrote: >> <sheldonb@frontiernet.net> >> >> I had my nose wheel tire go flat on my 6A also... Normal landing... >> pulled off the strip onto the taxi way... Flat!... Not sure just when it >> went flat... but couldn't move the plane for the tire was wedged against >> the pant... Local RV'ers came to the rescue.. Lucky I keep a spare tube >> onboard... Back in the air within an hour... Only thing I could see on >> the tube, was a very small pin hole... Not even sure if this was the >> cause.. for the tire/tube was fine for a year before... I did enlarge the >> opening some on the pant... >> Sheldon (RV6A 500 hrs) > > >


    Message 5


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    Time: 08:10:18 AM PST US
    From: Tomasz Korwel <tomasz@korwel.net>
    Subject: Re: flat tire vs. wheel fairing
    RICHARD MILLER wrote: > > landing with a flat will do a hell of a lot more damage then just the fairing. can you say ground loop. while tires with leaks go dead flat in the hanger they don,t go dead flat in the air since there is no compression on the tire in flight. so normally you end up with a low pressure tire at the end of the flight.and can control it. > > rick > > Actually they can go more than dead flat during flight. Dead flat is when inside the tube air pressure is equal to outside pressure. Which as we all know is different on the ground and up in the air. So it the tire develops leak it will equalize inside pressure to the one outside. If the plane sits on flat tires we also have change in volume, so actually if you jack up plane with dead flat tires, pressure inside such tube will be lower than outside due to increased volume. But on the other hand if you fly up there it can go down to let's say 7-8 psi absolute, then you land and suddenly outside pressure is 15.2 psi absolute - your tire now again has less pressure inside than it is outside - in fact much less than when it was sitting flat in the hangar. Tomasz


    Message 6


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    Time: 09:46:58 AM PST US
    From: "Terry Watson" <terry@tcwatson.com>
    Subject: flat tire vs. wheel fairing
    OK, you guys are messing with my mind. If a tire goes flat in the air and there is no runway there to flatten it, is it really flat? It's a quiet morning here in the rainy northwest. Terry Do not archive -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Tomasz Korwel Sent: Saturday, November 29, 2008 8:09 AM Subject: Re: RV-List: flat tire vs. wheel fairing RICHARD MILLER wrote: > > landing with a flat will do a hell of a lot more damage then just the fairing. can you say ground loop. while tires with leaks go dead flat in the hanger they don,t go dead flat in the air since there is no compression on the tire in flight. so normally you end up with a low pressure tire at the end of the flight.and can control it. > > rick > > Actually they can go more than dead flat during flight. Dead flat is when inside the tube air pressure is equal to outside pressure. Which as we all know is different on the ground and up in the air. So it the tire develops leak it will equalize inside pressure to the one outside. If the plane sits on flat tires we also have change in volume, so actually if you jack up plane with dead flat tires, pressure inside such tube will be lower than outside due to increased volume. But on the other hand if you fly up there it can go down to let's say 7-8 psi absolute, then you land and suddenly outside pressure is 15.2 psi absolute - your tire now again has less pressure inside than it is outside - in fact much less than when it was sitting flat in the hangar. Tomasz


    Message 7


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    Time: 10:17:29 AM PST US
    Subject: flat tire vs. wheel fairing
    From: "John Cox" <johnwcox@pacificnw.com>
    It would be "devoid of the necessary differential air pressure" to support the weight of the mass and refrain from additional structural damage (at a later date). Do you check the contained differential pressure before each flight? Think of throwing a stick in the spokes of your tricycle as a kid. Ouch. John - Aurora, OR in the wet NW PS - I spent last night shooting final topcoat paint on a new replacement nose fairing for an RV-6A which sustained this exact experience. The new fiberglass is vastly improved over the nine year old variant. Should be ready for installation tonight. Was it flat.... Hell yes, It just was not obvious until the old fairing let loose from the result of lack of air pressure when the mass, inertial and terra firma joined as ONE. -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Terry Watson Sent: Saturday, November 29, 2008 9:45 AM Subject: RE: RV-List: flat tire vs. wheel fairing OK, you guys are messing with my mind. If a tire goes flat in the air and there is no runway there to flatten it, is it really flat? It's a quiet morning here in the rainy northwest. Terry Do not archive


    Message 8


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    Time: 09:50:15 PM PST US
    From: dan@rdan.com
    Subject: Brake line tubing flaring
    I went down to the local hardware shop and bought their best flaring tool t o do the aluminum brake lines, is this the correct tool? the ridges it leav es in the tubing will not let the sleeve slide up, I had to take a file and buffer to it to get them out , I tried again same results,- is there a b etter tool? and do the bending coils I saw work good? -


    Message 9


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    Time: 10:24:29 PM PST US
    From: "Bruce Gray" <Bruce@glasair.org>
    Subject: Brake line tubing flaring
    No, No, NO! Automotive flaring tools create 45 degree flares. Aviation flareing tools create and aviation AN hardware require 37.5 degree flares. Bruce <http://www.glasair.org/> www.Glasair.org -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of dan@rdan.com Sent: Sunday, November 30, 2008 12:49 AM Subject: RV-List: Brake line tubing flaring I went down to the local hardware shop and bought their best flaring tool to do the aluminum brake lines, is this the correct tool? the ridges it leaves in the tubing will not let the sleeve slide up, I had to take a file and buffer to it to get them out , I tried again same results, is there a better tool? and do the bending coils I saw work good? 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D




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