---------------------------------------------------------- Zenith601-List Digest Archive --- Total Messages Posted Sat 11/08/08: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:16 AM - Re: Re: Polish, Paint OR not (raymondj) 2. 05:07 AM - Re: Re: FYI Cable Tensions, etc. (David Downey) 3. 12:58 PM - Cable load on rear rib 7 (dalemed) 4. 01:33 PM - Re: Cable load on rear rib 7 (Leo Gates) 5. 01:36 PM - Re: Re: Polish, Paint OR not (Jim Belcher) 6. 01:45 PM - Re: rudder, horiz stab/elevator storage (Jim Belcher) 7. 01:59 PM - Re: Cable load on rear rib 7 (Gig Giacona) ________________________________ Message 1 _____________________________________ Time: 12:16:44 AM PST US From: "raymondj" Subject: Re: Zenith601-List: Re: Polish, Paint OR not Interesting thought on the home base sacrificial anode. I may setup a trial next spring if I get around to it. Hang just a piece of al on a string and another one attached to a magnesium stake driven into the ground. Very interesting! Raymond Julian Kettle River, MN "Hope for the best, but prepare for the worst." do not archive ----- Original Message ----- From: "FlyingMonkey" Sent: Saturday, November 08, 2008 12:44 AM Subject: Zenith601-List: Re: Polish, Paint OR not > > > Nice looking machine in the opening post. Thought crossed my mind that if > the aircraft is left bare for aesthetics-might be an idea to PAINT those > portions , with aluminum colored paint......to maintain the look , and add > corrosion protection. > > Two good sources on aircraft corrosion > Death By Corrosion > (http://www.amtonline.com/publication/article.jsp?pubId=1&id=1438&pageNum=1) > > and > Fairly long, but worth-reading FAA pdf > (http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/A7FFC0F8B6216A43862569B5005081ED?OpenDocument&Highlight=corrosion%20control) > > Bare aluminum good products: > LPS3 (http://www.marvgolden.com/aircraft-supply/lps3.htm) > > or > Dinol AV5 > (http://www.ingentaconnect.com/content/maik/prom/2001/00000037/00000001/00299233?crawler=true) > > Another way they're starting to experiment with more-to protect ( in > particular unpainted ) aircraft-sacrificial anodes. Although they're > putting small sacrificial anodes ( a few ounces ) in the aircraft body ( > although this wouldn't work in military aircraft ( built of metals in the > same galvanic number as the anode=no current flow) I wonder why a 12 > pound magnesium sacrificial anode , in a five gallon metal pail of water, > which is coppered to ground, and also having one light wire from anode to > an all aluminum aircraft,wouldn't also induce a 5 millivolt current > flow-blocking the aluminum corrosion, and inducing the sacrificial anode > to corrode instead ( while the aircraft is tethered ) -just like I do with > buried water valves..... > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=213001#213001 > > -------------------------------------------------------------------------------- Checked by AVG - http://www.avg.com 7:58 PM ________________________________ Message 2 _____________________________________ Time: 05:07:46 AM PST US From: David Downey Subject: Re: Zenith601-List: Re: FYI Cable Tensions, etc. something else to keep in mind, Way back when Burt Rutan worked for Jim Bed e in Newton Kansas, they ran control cable through nylon tubing over some o bstruction that was attached to a door so that when people used the door it moved the cable in the tube. What they found, if I recall correctly, was t hat the cable wears more rapidly than the tubing. We may need to insect the cables for wear as well where the pass the fairleads? David L. Downey Harleysville-(SE) PA, USA --- On Fri, 11/7/08, Sabrina wrote: From: Sabrina Subject: Zenith601-List: Re: FYI Cable Tensions, etc. They were set with identical model cable gauges. The only problem is that over the telephone in November of 2007, and there may have been a lot of st atic on the line, what was heard from Zenith was ALL cables: 25 +/- 5, with the caveat: light side on the rudder, heavy side on the elevator. There was another conversation where 30 +/- 5 was mentioned but the voice was not recognized and they made no differentiation between any particular control surface. So too, this time an IA did it. >From what I recall, and from what I can decipher from my notes at this time, this is what they were set at originally in November of 2007: right aileron set to 25 found to be 25.....OK left aileron set to 25 found to be 25.......OK balance cable set to 25 found at 20........it runs through more nylon up elevator set at 30 found at 35...........elevator neutralized this time down elevator set at 30 found at 35......elevator neutralized this time left rudder set to 20 found at 27............different lift methods used right rudder set to 20 found at 27..........different lift methods used Read this topic online here: http://forums.matronics.com/viewtopic.php?p=212987#212987 =0A=0A=0A ________________________________ Message 3 _____________________________________ Time: 12:58:01 PM PST US Subject: Zenith601-List: Cable load on rear rib 7 From: "dalemed" I'm in the process of attaching the Bellcrank Support and Bellcrank Support Channel to Rear Rib 7. I can't help but wonder how RR7 supports 70 (+/-10) lbs of cable force (each cable pulling with 30 (+/-5) lbs.). It's Saturday or I'd call the factory to ask them if it might be wise to add L angle doublers to the Bellcrank Support Channel. Am I unnecessarily concerned? -------- Dale Flying Cessna 170B Building Zenith 601XL Read this topic online here: http://forums.matronics.com/viewtopic.php?p=213050#213050 ________________________________ Message 4 _____________________________________ Time: 01:33:27 PM PST US From: Leo Gates Subject: Re: Zenith601-List: Cable load on rear rib 7 dalemed wrote: > > I'm in the process of attaching the Bellcrank Support and Bellcrank Support Channel to Rear Rib 7. I can't help but wonder how RR7 supports 70 (+/-10) lbs of cable force (each cable pulling with 30 (+/-5) lbs.). > > I believe that is only 30 +/- 5 lbs pull on the rib. > It's Saturday or I'd call the factory to ask them if it might be wise to add L angle doublers to the Bellcrank Support Channel. > > Am I unnecessarily concerned? > > -------- > Dale > Flying Cessna 170B > Building Zenith 601XL > Leo Gates N601Z - CH601HDS TDO Rotax 912UL ________________________________ Message 5 _____________________________________ Time: 01:36:16 PM PST US From: Jim Belcher Subject: Re: Zenith601-List: Re: Polish, Paint OR not Something that seems to be ignored a bit is that corrosion occurs not just on the outside skin of the aircraft, but also on the inside. No matter what kind of paint or similar material is used on the outside, the inside still needs protection. It doesn't seem much more difficult to not put a decorative coating everywhere on the exterior, and to do the protection on both the inside and the outside surfaces at the same time. I normally did the interior surfaces of my Cherokee during annual each year. I'd probably do the same thing for the 601XL. I'll admit I'm biased, though. I'd already pretty much made up my mind to minimize the decorative coating on the outside. ============================================= Those who can, do. Those who can't, sue. ================================================ Jim B. Belcher BS, MS Physics, math, Computer Science A&P/IA Instrument Rated Pilot General Radio Telephone Certificate ================================================ ________________________________ Message 6 _____________________________________ Time: 01:45:47 PM PST US From: Jim Belcher Subject: Re: Zenith601-List: rudder, horiz stab/elevator storage Thanks to all for the ideas. I will probably build the storage rack suggested by Jay Bannister for the wings and elevator. Each of us has our own unique requirements. My shop, where I'm building the aircraft, has sloped rafters, with no flat ceiling area. The walls are heavy steel beams, with sheet metal. That makes it difficult to store the rubber on the walls, or to build some kind of storage surface below the ceiling. I will continue to think on the rudder problem. You've given me some ideas. ============================================= Those who can, do. Those who can't, sue. ================================================ Jim B. Belcher BS, MS Physics, math, Computer Science A&P/IA Instrument Rated Pilot General Radio Telephone Certificate ================================================ ________________________________ Message 7 _____________________________________ Time: 01:59:16 PM PST US Subject: Zenith601-List: Re: Cable load on rear rib 7 From: "Gig Giacona" I don't think it would create a combined load like that because the other end is also dealing with half of the tension. It is just 30 (+/-5) lbs. dalemed wrote: > I'm in the process of attaching the Bellcrank Support and Bellcrank Support Channel to Rear Rib 7. I can't help but wonder how RR7 supports 70 (+/-10) lbs of cable force (each cable pulling with 30 (+/-5) lbs.). > > It's Saturday or I'd call the factory to ask them if it might be wise to add L angle doublers to the Bellcrank Support Channel. > > Am I unnecessarily concerned? -------- W.R. "Gig" Giacona 601XL Under Construction See my progress at www.peoamerica.net/N601WR Read this topic online here: http://forums.matronics.com/viewtopic.php?p=213059#213059 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith601-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith601-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/zenith601-list Browse Digests http://www.matronics.com/digest/zenith601-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.