RV8-List Digest Archive

Wed 01/06/10


Total Messages Posted: 5



Today's Message Index:
----------------------
 
     1. 03:03 PM - Dynon transducer orientation (Vince Himsl)
     2. 03:24 PM - Re: Dynon transducer orientation (Craig Gallenbach)
     3. 04:42 PM - Re: Dynon transducer orientation (tailgummer@aol.com)
     4. 04:43 PM - Re: Re: Yet another priming question (Dan Bergeron)
     5. 07:35 PM - Re: RV8 Heavy Wing (Speedy11@aol.com)
 
 
 


Message 1


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    Time: 03:03:34 PM PST US
    From: "Vince Himsl" <vshimsl@live.com>
    Subject: Dynon transducer orientation
    Hello, I have Van's 3 port sensor manifold. It is too close to the firewall for me to mount my Dynon fuel pressure sensor vertically. So I mounted it horizontally. I also have erratic high fuel pressure readings generating alarms on my Dynon D-180. Has anyone cured the erratic readings by returning the fuel pressure sensor to vertical? Vince RV-8 Flying at 22 hrs


    Message 2


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    Time: 03:24:44 PM PST US
    From: Craig Gallenbach <craigtxtx@yahoo.com>
    Subject: Re: Dynon transducer orientation
    Vince,=0AI have a similar arrangement for my Dynon EMS fuel pressure transd ucer and it works fine. My OP transducer is also horizontal and both give s table readings. =0A=0ACriig Gallenbach=0ARV8A N184CG. 90hrs=0A=0ASent from my iPhone=0A=0AOn Jan 6, 2010, at 6:01 PM, "Vince Himsl" <vshimsl@live.com> wrote:=0A=0AHello,=0A=0AI have Van=99s 3 port sensor manifold. It is too close to the firewall for me to mount my Dynon fuel pressure sensor ve rtically. So I mounted it horizontally. I also have erratic high fuel press ure readings generating alarms on my Dynon D-180.=0A=0A =0A=0AHas anyone cu red the erratic readings by returning the fuel pressure sensor to vertical? =========================0A ========0A=0A


    Message 3


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    Time: 04:42:36 PM PST US
    From: tailgummer@aol.com
    Subject: Re: Dynon transducer orientation
    Is it possible to mount your manifold with sufficient spacers (Al stock, washers, etc) to allow vertical mounting of your transducers? I believe this is a common issue with transducer mounting. It seems reasonable from a vibration standpoint that a vertical mount (hanging downward) will help reduce the moment arm on your transducer. John D RV 8


    Message 4


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    Time: 04:43:24 PM PST US
    Subject: Re: Yet another priming question
    From: Dan Bergeron <dan.pat.b@gmail.com>
    Hi All: More re priming from the "for-what-it's-worth" department: My RV-7A has been flying since early August 09 after 6 1/2 years of construction time. I primed all aluminum surfaces not destined for finish painting with Sherwin - Williams industrial wash primer. I worked all surfaces over thoroughly with Scotch Brite pads and cleaned them with lacquer thinner prior to spraying with an el cheapo spray gun. I used a good quality 3M respirator and plenty of fresh air ventilation with box fans. (If I ever build another airplane I'll buy myself a fresh air respirator.) For occasional spraying of small and odd parts I used the same prep technique and a Sherwin Williams rattle can primer. It worked fine. I'm glad I primed and would do it again, but I'll be the first to admit, it was a lot of work and drudgery. How effective is it in preventing/delaying corrosion? I don't honestly know and will let others debate the issue. Dan Bergeron RV-7A - N307TB 76 hours since 08/04/09 and flying beautifully On Tue, Jan 5, 2010 at 10:15 AM, Jerry Grimmonpre <jerry@mc.net> wrote: > Dear Listers ... > > "For What It's Worth Dept", > > Two years ago my son zero timed a straight tail Cessna 172 built in 1956. > Cessna blew NO paint, on the inside of that critter, when built. The > protection Cessna relied on was Alclad. There was NO corrosion on the > inside of the empanage, wings or tail feathers. There was a bit of surface > corrosion on the cockpit side of the root rib and that was it. The airplane > had been owned by a group of United pilots who never hangared the airplane > for years. > > Regards ... Jerry > > ----- Original Message ----- > *From:* Speedy11@aol.com > *To:* rv8-list@matronics.com > *Sent:* Monday, January 04, 2010 6:13 PM > *Subject:* RV8-List: Re: Yet another priming question > > OH - good fun - another primer war! > > Chet, I used several primers. I sprayed primer on the entire inside of the > fuselage using several brands of self-etching primers. I sprayed the > fuselage using a spray gun and a gallon of self-etching primer. I used a > fresh air ventilator while doing it. Then I primed other parts using rattle > can self-etching primers. The SEM worked fine and is readily available. I > scuffed first with scotchbrite then cleaned the metal with Dupont 210 > cleaner or with MEK. In one case I did not get good adhesion so I stripped > the parts and scotchbrited them again and reprimed. The second time held. > There is a lot of opinion about whether to prime and how much and what type > primer. So, I'm just telling you what I did. We'll know in 35 or 40 years > whether or not my efforts were worthwhile. By that time, the internet will > have been replaced by mental telepathy - so send me your thoughts at that > time. > I recommend priming any unprimed parts with self etching primer after > cleaning with some type of metal cleaner to remove body oils and other > contaminants. > You may want to check with the paint shop you plan to use (or a > professional painter) to make sure the primer you use is compatible with the > planned top coat paint. > Good luck and thanks for starting the primer wars again. They're > entertaining. > Stan Sutterfield > www.rv-8a.net > Do not archive > > > * > >


    Message 5


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    Time: 07:35:55 PM PST US
    From: Speedy11@aol.com
    Subject: Re: RV8 Heavy Wing
    Dick, I didn't know you were back in town!! How are you liking our frigid weather? Come by the hangar - I've got 42 hours on my RV now and I'm almost ready to race you - if you're not too afraid of being embarrassed. Did you ever put on the ram air system? Nelson didn't come down this year - he went to SAT. Anyway, I'm doing maintenance on the RV this month so ride your scooter over and talk to me about the heavy wing. I'm next door to Orval. Stan Sutterfield Do not archive Stan, I am here now in DAB with my RV8 until spring. I am hangered at Spruce Creek Airpark (7FL6). I can help you. You may call me anytime on my cell phone 920 619 6968. Dick Martin RV8 N233M the fast one ----- Original Message ----- From: Speedy11@aol.com Sent: Thursday, December 31, 2009 9:04 AM Subject: RV8-List: Heavy Wings on RV-8 Has anybody out there done something other than squeezing the trailing edge of the light wing in order to correct a heavy wing problem? Has anyone discovered an aerodynamic cause for a heavy wing? I'm stumped. Stan Sutterfield Daytona Beach




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