RV9-List Digest Archive

Sat 12/28/02


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 09:10 AM - Re: Drain Valves (Steve Sampson)
     2. 11:55 AM - Re: Accidental IFR!!!! (Lonnie Woodman)
 
 
 


Message 1


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    Time: 09:10:26 AM PST US
    From: "Steve Sampson" <SSampson.SLN21@london.edu>
    Subject: Drain Valves
    --> RV9-List message posted by: "Steve Sampson" <SSampson.SLN21@london.edu> Thanks everyone for the help on the drain valves. I will get my inspector and his taps involved since like Gene and Todds they hang out far to far in the breeze. Also, if they just backed off a couple of threads all the motion lotion would fall overboard. I sort of knew something was wrong when they stuck out more than the ones on my Supercub - and that makes drag an art form! I have learned a lot on this one - isn't it great!. Thanks all, and best wishes for 2003. Regards, Steve. #90360 N Yorks UK -----Original Message----- From: owner-rv9-list-server@matronics.com [mailto:owner-rv9-list-server@matronics.com] On Behalf Of Richard E. Tasker Subject: Re: RV9-List: Drain Valves --> RV9-List message posted by: "Richard E. Tasker" <retasker@optonline.net> No, the two turns is two turns after finger tight (unless you have really strong fingers :-) ). Two flats is more like what a flare fitting is turned after finger tight - actually this is normally approximately 1.5 flats for proper sealing. As Dave correctly stated, Parker is Parker Hannifin. My company manufactures pressure sensors and we deal with almost two dozen different thread types. The NPT are very common in the US, although the SAE type which seal with an o-ring are a close second. There are also the flare fittings used primarily in aerospace applications which have the same thread size as the SAE fittings but seal with an o-ring. There are basically three types of fittings (with lots of variations and sizes): 1. Tapered (NPT) - 2-2.5 turns after finger tight and some type of thread sealant is necessary. There is a subclass of these that are call "dryseal" threads which are precision machined and do not use thread sealant but you will probably never see any of these. 2. AN (and similar) fittings - approximately 1.5 flats after finger tight and DO NOT use any type of sealant - they seal on the metal faces of the tapers. 3. SAE and metric (straight thread with o-ring) - just past finger tight (not even one flat) and NO thread sealant - the o-ring provides the seal. Dick Tasker, 90573. Steve Sampson wrote: >--> RV9-List message posted by: "Steve Sampson" <SSampson.SLN21@london.edu> > >Thanks all for the 'Drain Valve' responses. That helped my confidence. I >have used Teflon paste not tape. > >Richard - I think the 'two turns' is in fact two flats ie 1/3 turn. Who is >Parker? > >Best wishes for '03. >Steve. > >DO NOT ARCHIVE > > -----Original Message----- >From: owner-rv9-list-server@matronics.com >[mailto:owner-rv9-list-server@matronics.com] On Behalf Of Richard E. Tasker >Sent: 27 December 2002 01:09 >To: rv9-list@matronics.com >Subject: Re: RV9-List: Drain Valves > >--> RV9-List message posted by: "Richard E. Tasker" <retasker@optonline.net> > >They are 1/8 NPT - tapered pipe threads. They do only screw in a few >threads. The "proper" (according to Parker) way to install pipe threads >is to use a little thread sealer (teflon tape or teflon pipe dope) being >careful not to allow any loose pieces to get inside the tank, screw the >valve into the fitting by hand and then use a wrench to tighten it two >more turns. > >Dick Tasker, 90573 > >Steve Sampson wrote: > > >>--> RV9-List message posted by: "Steve Sampson" <SSampson.SLN21@london.edu> >> >>Seasons greetings to you all! >> >>Do the drain valves screw home or are they designed so the threads lock up >>so there is no leak. Mine only seem to screw in a short distance. >> >>Thanks, Steve. >>#90360 >> >> >> >> > >


    Message 2


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    Time: 11:55:31 AM PST US
    From: Lonnie Woodman <fxdlrider@yahoo.com>
    Subject: Re: Accidental IFR!!!!
    --> RV9-List message posted by: Lonnie Woodman <fxdlrider@yahoo.com> Hey everyone. It seems that all we usually hear about are the stories with a sad ending. It is nice to hear some with happy endings where good decision making and being prepared prevailed. I'm not a pilot (yet) and I havn't built an RV (yet) but when I can fly my own, these stories can be used when others are in the same situation. Keep EM Coming!! Lonnie Woodman A&P Stein Bruch <stein@steinair.com> wrote:--> RV9-List message posted by: "Stein Bruch" Hi All, Slightly off-topic, but VERY pertinent none the less. Today a friend and I had the day off so we decided to fly from Minneapolis to Milwaukee to see some old buds at the Citabria factory. Weather online looked good...checked METARS,TAFS,RADAR,SATELLITE, etc.. Forecast was great...so.... We took off around 10:00 am for an expected 1.5 hour flight to Milwaukee. Great flight, 205mph over the ground and arrived at the Citabria factory's airport ahead of schedule to some hefty crosswinds, but nothing else. Stayed there until about 2:00pm then went outside to head home. Here starts my flight from hell. There was an overcast layer about 3500', but clear below and the forecasts looked OK, so off we went for MSP. Winds had picked up to 18G22 directly across the runway, but not a huge deal since the wind at home was only 8-12KT. Flew for about .5 hour and started running into some haze and the clouds were getting lower. We pressed on, but had decided to turn back if it didn't get better. Well, it didn't and about 5 minutes later the clouds dropped all the way to the ground and into a wall of fog/haze/clouds/overcast we went:( Made an immediate 180 to go back, but the weather suddenly had dropped all over the place. SOLID IFR/IMC and 0/0 visibility! Heading back didn't help. Called flight watch and found out the layer was only about 2000' thick and VFR on top. Since these planes just love to climb, we immediately went up above. Beautiful sun over the clouds and away towards Minneapolis we go! Fly back to the flight plan that was plugged into my SkyforceIIIc and proceeded to fly towards home when about 5 minutes later the GPS lost all satellite signals and I got a "no fix possible" warning. GREAT, no ground to look at and no GPS. We were originally just going to follow the good old Mississippi river home, but no good above a solid cloud deck. All this while flying against a 35Kt Cross/Headwind that made flying straight & level miserable, terribly bumpy (+4/-2G), and overall NO FUN. I had to revert to flying with the VOR---GOD I'm glad I put that thing in my panel! Pulled out the sectional, found some VOR's and got back on track towards home. Called flight watch and found out the clouds were breaking near Minneapolis so everything was pretty smooth from there. About 20 miles south of MSP the clouds broke and we arrived safely, albeit a bit tired, stressed, and somewhat rattled. Anyway, my whole point is that I've become some dependent on my GPS and it's flight plans that I've rarely had occasion to use my charts and VOR. Just thought I'd pass on a reminder to everyone that it definately pays to keep a sectional handy. Additionally, if you have a VOR, it pays to keep at least somewhat current! Oh, one last thing...flying IFR/IMC "accidently" is NO FUN and definately NOT SAFE when you're not prepared. Well, happy flying and CLEAR SKIES! Cheers, Stein Bruch RV6, Minneapolis Do Not Archive. P.S. I looked at the weather when I got home, and it looked much better than it actually was. Lesson Learned. ---------------------------------




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