---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Fri 10/20/06: 34 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:35 AM - Re: Re: Rivets in the 601XL elevator ribs (Gary Boothe) 2. 03:38 AM - Re: Looking for 7/32" Repair Rivets (Paul Mulwitz) 3. 04:06 AM - Re: Re: Rivets in the 601XL elevator ribs (Robin Bellach) 4. 06:03 AM - RE : "Electroless Nickel" plating on all of my 4130 and SS parts. (Carlos Sa) 5. 06:38 AM - Re: Rivets in the 601XL elevator ribs (Gig Giacona) 6. 07:48 AM - Re: 701 airfoil and VG's (Keith Ashcraft) 7. 08:13 AM - Rib-Making (N5SL) 8. 08:36 AM - Re: Re: Rivets in the 601XL elevator ribs (Clyde Barcus) 9. 08:55 AM - Re: Re: Rivets in the 601XL elevator ribs (Larry Winger) 10. 09:18 AM - Rivet spacing (George Swinford) 11. 09:34 AM - RE : Rib-Making (Carlos Sa) 12. 09:41 AM - Re: RE : Rib-Making (Gig Giacona) 13. 10:12 AM - Rivet Spacing (tinerj2005@tinerj.com) 14. 11:13 AM - Re: Rivet spacing (Dino Bortolin) 15. 11:17 AM - Re: Rivet spacing (Dino Bortolin) 16. 11:37 AM - Re: Rivet Spacing (JOHN STARN) 17. 02:26 PM - 701 Dzus plate (Gordon) 18. 02:31 PM - Re: Rivet spacing (Zodie Rocket) 19. 03:14 PM - Re: 701 Dzus plate (Geoff Heap) 20. 03:19 PM - Re: 701 Dzus plate (Geoff Heap) 21. 03:46 PM - Fuselage Skins (Wade Jones) 22. 03:47 PM - INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. (Dave Ruddiman) 23. 03:49 PM - Rivet spacing, again (George Swinford) 24. 05:04 PM - 801 Wing Root Skin (Dave Ruddiman) 25. 05:26 PM - Re: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. (Robin Bellach) 26. 06:10 PM - Re: 801 Wing Root Skin (Tom P) 27. 06:50 PM - Upholstery Progress (Pic of the Day) (N5SL) 28. 07:25 PM - Re: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. (Sigmo@aol.com) 29. 07:27 PM - Re: Upholstery Progress (Pic of the Day) (Robin Bellach) 30. 07:31 PM - Re: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. (Dave Ruddiman) 31. 07:56 PM - Re: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. (Robin Bellach) 32. 08:09 PM - RAC stick wiring question (ray.stlaurent@vsea.com) 33. 10:19 PM - Re: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. (Dave Ruddiman) 34. 10:47 PM - Re: Upholstery Progress (Pic of the Day) (TxDave) ________________________________ Message 1 _____________________________________ Time: 02:35:43 AM PST US From: "Gary Boothe" Subject: RE: Zenith-List: Re: Rivets in the 601XL elevator ribs Larry, Ron's explanation is exactly right. Gary Boothe Cool, CA 601 HDSTD, WW Conversion 90% done, Tail done, wings done, working on c-section _____ From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Larry Winger Sent: Thursday, October 19, 2006 8:56 PM Subject: Re: Zenith-List: Re: Rivets in the 601XL elevator ribs Ron, That sounds like a workable solution. Unless I hear from anyone else on the list who has a convincing argument to the contrary, that will be my plan. Thanks, Larry On 10/19/06, Ron Lendon wrote: --> Zenith-List message posted by: "Ron Lendon" > Larry, I ran in to the same problem and solved it by knowing 40 pitch is the maximum pitch, you can always go for less pitch. Some of my 40 pitch are actually 35mm. What I did is marked the end rivets at the correct edge distance then set the fan to fill the void with the correct number of rivets. If it came out at 35mm, so be it. Have fun, -------- Ron Lendon, Clinton Township, MI Corvair Zodiac XL, ScrapBuilder ;-) http://www.mykitlog.com/rlendon Read this topic online here: ________________________________ Message 2 _____________________________________ Time: 03:38:30 AM PST US From: Paul Mulwitz Subject: Re: Zenith-List: Looking for 7/32" Repair Rivets --> Zenith-List message posted by: Paul Mulwitz Hi Ron, I did a little searching on the web and found many possible sources for these rivets and similar ones with different lengths. One source that looked promising was: http://ad7.isocomponents.com/part/AD71 The search I did was for "ms20470ad7" Good luck, Paul XL fuselage ________________________________ Message 3 _____________________________________ Time: 04:06:33 AM PST US From: "Robin Bellach" <601zv@ritternet.com> Subject: Re: Zenith-List: Re: Rivets in the 601XL elevator ribs --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> Me too. My plans with 6-T-3 dated 06/03 show 9 rivets in all ribs, and mine, equally spaced are at about pitch 36. Actual pitch may vary slightly depending how close you start to the trailing edge. You will find similar pitch situations occurring througout the rest of the airframe and I have always considered the stated pitch to be nominal maximum and just equally space the rivets. You will notice that the designated pitch is always stated in even numbers, i.e. 40, but in reality rarely works out even. ----- Original Message ----- From: "Ron Lendon" Sent: Thursday, October 19, 2006 10:09 PM Subject: Zenith-List: Re: Rivets in the 601XL elevator ribs > --> Zenith-List message posted by: "Ron Lendon" > > Larry, > > I ran in to the same problem and solved it by knowing 40 pitch is the > maximum pitch, you can always go for less pitch. Some of my 40 pitch are > actually 35mm. > > What I did is marked the end rivets at the correct edge distance then set > the fan to fill the void with the correct number of rivets. If it came > out at 35mm, so be it. > > Have fun, > > -------- > Ron Lendon, Clinton Township, MI > Corvair Zodiac XL, ScrapBuilder ;-) > http://www.mykitlog.com/rlendon > > ________________________________ Message 4 _____________________________________ Time: 06:03:53 AM PST US From: Carlos Sa Subject: RE : Zenith-List: "Electroless Nickel" plating on all of my 4130 and SS parts. --> Zenith-List message posted by: Carlos Sa Hello, your description of the appearance of your parts triggered a memory of a conversation I had with Grant Corriveau years ago. He had his gear legs (CH601-HDS) finished by some process (no idea what it was) that gave them a matt finish appearance. Apparently this type of finishing (mind you, it might be something different from yours) makes the gear leg surface act as sandpaper: over time, it enlarged the whole on the legs' bearings. it This is the story as I remember it, maybe Grant can confirm it. Carlos CH601-HD Montreal, Canada --- tjlhl a crit : > I took all of the 601XL 4130 steel parts and all of the SS parts to a place called Chrome > Wright Inc. in Lees Summit, Mo. and had them plated with a process called "Electroless Nickel". > It has the look of brushed stainless. The steps, nose gear, yolk, ect. looks great. > Please don't ask me about the process but instead call and talk to Steve Schmidt, the general > manager there. The phone number is 816-525-5417. the email is chromeen@swbell.net. He's a > airplane guy, and some other builders have taken their parts there. You can UPS them and he > will plate and send them back to you. The price is quite reasonable. > > I wanted to pass this along in case some of you wanted to plate your steel parts. __________________________________________________ En finir avec le spam? Yahoo! Courriel vous offre la meilleure protection possible contre les messages non nollicits http://mail.yahoo.ca Yahoo! Courriel ________________________________ Message 5 _____________________________________ Time: 06:38:06 AM PST US Subject: Zenith-List: Re: Rivets in the 601XL elevator ribs From: "Gig Giacona" --> Zenith-List message posted by: "Gig Giacona" Get you one of these. The rivet spacing fan makes life so much easier. There are many many places that the 40 is the minimum and you will need to come up with a smaller spacing. For the record I bought mine from ACS but the above link was the first with a picture that came up when I Googled 'Rivet spacing fan' -------- 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=69110#69110 ________________________________ Message 6 _____________________________________ Time: 07:48:54 AM PST US From: Keith Ashcraft Subject: Re: Zenith-List: 701 airfoil and VG's All, Sorry I am a little bit behind with this email. Been TDY to Kuwait for the last couple weeks. Here is a link that has a very good list of air-foils used on different planes. Look under Heintz Zenith http://www.ae.uiuc.edu/m-selig/ads/aircraft.html Conventional Aircraft: Wing Root Airfoil Wing Tip Airfoil Heintz Zenith CH 601 HD NACA 65-018 NACA 65-018 Heintz Zenith CH 601 XL NACA 23018 NACA 23015 Heintz Zenith CH 701 NACA 6515 mod NACA 6515 mod Heintz Zenith CH 801 NACA 6515 mod NACA 6515 mod Hope this gives you some ideas. Keep building, pounding, squeezing, pulling, or flying!!! Keith CH701 -- 8% Sidewinder -- 2% Teenie Two -- wooden forms N 38.9947 W 105.1305 Alt. 9,100' ***************************************************************************** Ron Butterfield wrote: > --> Zenith-List message posted by: "Ron Butterfield" > > > I don't know about which airfoil the 701 uses, but if you want to play > with airfoils there is a very useful utility available here: > http://www.profili2.com/eng/default.htm > > In addition to the airfoil data included, the program can generate the > 4- or 5-digit NACA profiles. > -- ************************************* *Keith Ashcraft* ITT Industries Advanced Engineering & Sciences 5009 Centennial Blvd. Colorado Springs, CO 80919 (719) 599-1787 -- work (719) 332-4364 -- cell keith.ashcraft@itt.com ************************************ This e-mail and any files transmitted with it are proprietary and intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error please notify the sender. Please note that any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of ITT, Inc. The recipient should check this e-mail and any attachments for the presence of viruses. ITT accepts no liability for any damage caused by any virus transmitted by this e-mail. ************************************ ________________________________ Message 7 _____________________________________ Time: 08:13:47 AM PST US From: N5SL Subject: Zenith-List: Rib-Making --> Zenith-List message posted by: N5SL Hi guys: For those of you considering plans-building but haven't built a rib yet, I found a great video on Youtube you should look at. The screwdriver idea is different from what I did but it looks like it works great. Also this video explains the difficult part of making the sharp curve around a nose rib. The first time I tried this I ended up with a coke-bottle-top effect. The trick is to make the flange small and use a hard-faced hammer. Here's the video: http://www.youtube.com/watch?v=HJzFsdFpp7A Scott Laughlin www.cooknwithgas.com Final upholstery and engine testing ________________________________ Message 8 _____________________________________ Time: 08:36:52 AM PST US From: "Clyde Barcus" Subject: Re: Zenith-List: Re: Rivets in the 601XL elevator ribs --> Zenith-List message posted by: "Clyde Barcus" Cheap Rivet Spacer: Buy an aluminum yardstick (About $3.00) use a Stanley knife and square to scribe lines every 40mm, also scribe a 20mm line in the first section. The aluminum yardstick bends easily to conform to wings or works great on flat surfaces as well. If plans call for 20mm spacing scribe 40mm first, then move the yardstick to match the 20mm scribe to a 40mm you just made and mark the 40mm lines again. Cheap, easy and accurate. Clyde 601XL ----- Original Message ----- From: "Gig Giacona" Sent: Friday, October 20, 2006 9:37 AM Subject: Zenith-List: Re: Rivets in the 601XL elevator ribs > --> Zenith-List message posted by: "Gig Giacona" > > Get you one of these. > > > The rivet spacing fan makes life so much easier. There are many many > places that the 40 is the minimum and you will need to come up with a > smaller spacing. > > For the record I bought mine from ACS but the above link was the first > with a picture that came up when I Googled 'Rivet spacing fan' > > -------- > 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=69110#69110 > > > ________________________________ Message 9 _____________________________________ Time: 08:55:20 AM PST US From: "Larry Winger" Subject: Re: Zenith-List: Re: Rivets in the 601XL elevator ribs Thanks to everyone for good insight into this issue which obviously crops up with regularity through the entire build. You guys are a great help. Larry Winger Tustin, CA 601XL Elevator drilled & clecoed On 10/20/06, Robin Bellach <601zv@ritternet.com> wrote: > > --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> > > Me too. My plans with 6-T-3 dated 06/03 show 9 rivets in all ribs, and > mine, > equally spaced are at about pitch 36. Actual pitch may vary slightly > depending how close you start to the trailing edge. You will find similar > pitch situations occurring througout the rest of the airframe and I have > always considered the stated pitch to be nominal maximum and just equally > space the rivets. You will notice that the designated pitch is always > stated > in even numbers, i.e. 40, but in reality rarely works out even. > ----- Original Message ----- > From: "Ron Lendon" > To: > Sent: Thursday, October 19, 2006 10:09 PM > Subject: Zenith-List: Re: Rivets in the 601XL elevator ribs > > > > --> Zenith-List message posted by: "Ron Lendon" > > > > Larry, > > > > I ran in to the same problem and solved it by knowing 40 pitch is the > > maximum pitch, you can always go for less pitch. Some of my 40 pitch > are > > actually 35mm. > > > > What I did is marked the end rivets at the correct edge distance then > set > > the fan to fill the void with the correct number of rivets. If it came > > out at 35mm, so be it. > > > > Have fun, > > > > -------- > > Ron Lendon, Clinton Township, MI > > Corvair Zodiac XL, ScrapBuilder ;-) > > http://www.mykitlog.com/rlendon > > > > > > ________________________________ Message 10 ____________________________________ Time: 09:18:57 AM PST US From: "George Swinford" Subject: Zenith-List: Rivet spacing Here's another way to space your rivets: Mark the end rivets in the pattern and measure the distance between them. Divide that distance by the number of equal spaces you need. Be sure to use the number of spaces, which is one less than the number of rivets in the pattern. Enter the resulting number in a calculator with a memory function, and store it in the memory. Layout the distance from an end rivet to the next one in the pattern, using a metric scale or tape measure. From there on, get each successive measurement (from the end rivet) by adding the number in memory to the number in the calculator display. This is more accurate than just measuring the "equal space" dimension from rivet to rivet, since the little errors in measurement don't accumulate. Of course, with this method, you don't have an excuse for adding a rivet fan to your tool collection. George ________________________________ Message 11 ____________________________________ Time: 09:34:32 AM PST US From: Carlos Sa Subject: RE : Zenith-List: Rib-Making --> Zenith-List message posted by: Carlos Sa Great finding, Scott I just wish two things: (1) I had seen that video years ago and (2) I could work that fast ! ;o) Happy building! Carlos CH601-HD, plans Montreal, Canada do not archive --- N5SL a crit : > --> Zenith-List message posted by: N5SL > > Hi guys: > > For those of you considering plans-building but haven't built a rib yet, I found a great video > on Youtube you should look at. The screwdriver idea is different from what I did but it looks > like it works great. Also this video explains the difficult part of making the sharp curve > around a nose rib. The first time I tried this I ended up with a coke-bottle-top effect. The > trick is to make the flange small and use a hard-faced hammer. Here's the video: > > http://www.youtube.com/watch?v=HJzFsdFpp7A > > Scott Laughlin __________________________________________________ En finir avec le spam? Yahoo! Courriel vous offre la meilleure protection possible contre les messages non nollicits http://mail.yahoo.ca Yahoo! Courriel ________________________________ Message 12 ____________________________________ Time: 09:41:33 AM PST US Subject: Zenith-List: Re: RE : Rib-Making From: "Gig Giacona" --> Zenith-List message posted by: "Gig Giacona" After seeing it, it makes me very happy I'm building from a kit. Carlos Sa wrote: > Great finding, Scott > > > I just wish two things: > (1) I had seen that video years ago and > (2) I could work that fast ! ;o) > > Happy building! > > Carlos > CH601-HD, plans > Montreal, Canada > do not archive > > --- N5SL a it : > > > > > > > > Hi guys: > > > > For those of you considering plans-building but haven't built a rib yet, I found a great video > > on Youtube you should look at. The screwdriver idea is different from what I did but it looks > > like it works great. Also this video explains the difficult part of making the sharp curve > > around a nose rib. The first time I tried this I ended up with a coke-bottle-top effect. The > > trick is to make the flange small and use a hard-faced hammer. Here's the video: > > > > http://www.youtube.com/watch?v=HJzFsdFpp7A > > > > Scott Laughlin > > > > > > > __________________________________________________ > En finir avec le spam? Yahoo! Courriel vous offre la meilleure protection possible contre les messages non nollicit > http://mail.yahoo.ca Yahoo! Courriel -------- 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=69140#69140 ________________________________ Message 13 ____________________________________ Time: 10:12:13 AM PST US From: "tinerj2005@tinerj.com" Subject: Zenith-List: Rivet Spacing --> Zenith-List message posted by: "tinerj2005@tinerj.com" Yes, what I learned in the rudder class is to reduce the spacing slightly to get the stated number of rivets. Doing this is easier with one of the accordion fan spacing tools. Mark first and last hole, then set it at 40 mm or whatever and then see if you get the right number. If too few, then squeeze the fan so the number comes out right. This is going to happen a lot as you proceed in putting together the other parts. On some with a long throw that exceeds the reach of your fan, you may want to put in a center mark for a rivet as well as the end marks and then use the fan to get the left and right spacing. -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ . ________________________________ Message 14 ____________________________________ Time: 11:13:35 AM PST US From: "Dino Bortolin" Subject: Re: Zenith-List: Rivet spacing --> Zenith-List message posted by: "Dino Bortolin" Oops, I should have written "... distance between the end rivets is 308mm... " Dino On 10/20/06, Dino Bortolin wrote: > I use a variation of the method that George described when the rivet > pitch is dictated instead of the number of rivets: > > Mark the end rivets in the pattern and measure the distance between > them. Divide that distance by the rivet pitch in the plans. Round the > answer up to the next whole number. Now divide the original distance > you measured by this whole number and use the answer the same way > George described. > > An example to clarify, lets say the distance between the end rivets is > 312mm and the rivet pitch needed is a maximum of 40mm. Punch in > 308/40, you get 7.7, round this up to 8. Now punch in 308/8 =38.5mm. > Store this number in the memory and use it for the rivet pitch. > > > Dino > > On 10/20/06, George Swinford wrote: > > Here's another way to space your rivets: > > > > Mark the end rivets in the pattern and measure the distance between them. > > Divide that distance by the number of equal spaces you need. Be sure to > use > > the number of spaces, which is one less than the number of rivets in the > > pattern. Enter the resulting number in a calculator with a memory > function, > > and store it in the memory. Layout the distance from an end rivet to the > > next one in the pattern, using a metric scale or tape measure. From there > > on, get each successive measurement (from the end rivet) by adding the > > number in memory to the number in the calculator display. This is more > > accurate than just measuring the "equal space" dimension from rivet to > > rivet, since the little errors in measurement don't accumulate. > > > > Of course, with this method, you don't have an excuse for adding a rivet > fan > > to your tool collection. > > > > George > > > ________________________________ Message 15 ____________________________________ Time: 11:17:50 AM PST US From: "Dino Bortolin" Subject: Re: Zenith-List: Rivet spacing --> Zenith-List message posted by: "Dino Bortolin" I use a variation of the method that George described when the rivet pitch is dictated instead of the number of rivets: Mark the end rivets in the pattern and measure the distance between them. Divide that distance by the rivet pitch in the plans. Round the answer up to the next whole number. Now divide the original distance you measured by this whole number and use the answer the same way George described. An example to clarify, lets say the distance between the end rivets is 312mm and the rivet pitch needed is a maximum of 40mm. Punch in 308/40, you get 7.7, round this up to 8. Now punch in 308/8 =38.5mm. Store this number in the memory and use it for the rivet pitch. Dino On 10/20/06, George Swinford wrote: > Here's another way to space your rivets: > > Mark the end rivets in the pattern and measure the distance between them. > Divide that distance by the number of equal spaces you need. Be sure to use > the number of spaces, which is one less than the number of rivets in the > pattern. Enter the resulting number in a calculator with a memory function, > and store it in the memory. Layout the distance from an end rivet to the > next one in the pattern, using a metric scale or tape measure. From there > on, get each successive measurement (from the end rivet) by adding the > number in memory to the number in the calculator display. This is more > accurate than just measuring the "equal space" dimension from rivet to > rivet, since the little errors in measurement don't accumulate. > > Of course, with this method, you don't have an excuse for adding a rivet fan > to your tool collection. > > George > ________________________________ Message 16 ____________________________________ Time: 11:37:05 AM PST US From: "JOHN STARN" Subject: Re: Zenith-List: Rivet Spacing --> Zenith-List message posted by: "JOHN STARN" Since the RV-4/HRII's were not prepunched (or pre anything) we did as others have noted. Find & mark the two ends of the rivet line. Using a rivet fan open & close to give you proper spacing. Punch the end two holes & drill them, cleco the two ends of the fan to these holes. Using a spring loaded punch thru the holes in the fan you can mark & leave guide marks in one operation. Remove the fan, re-punch the marks. Too long a run ?, Mark the two ends (they will end somewhere) Half, quarter, thirds the run, drill & cleco. The fan, punch & cleco methods allows it to be done be a single person & the fan holes can't move. Put tape or shop cloth under the center line of the fan to keep from scratching the surface while "punching". Remember: Your building an airplane NOT a Rolex. Get 'er done. KABONG Do Not Archive as I sure it's in there. ----- Original Message ----- From: Sent: Friday, October 20, 2006 10:11 AM Subject: Zenith-List: Rivet Spacing ________________________________ Message 17 ____________________________________ Time: 02:26:14 PM PST US From: "Gordon" Subject: Zenith-List: 701 Dzus plate I'm working on the front side skins 7-f-14-3 and can't figure out where 7-f-14-1 the lower dzus plates go. In the upper left hand drawing they appear to be fastened to the back of the firewall running vertically, but in the exploded view it is shown as curved piece running along the side skin. I probably need a good nights rest and look at it in the morning, but I'll take any input I can get. It's probably very obvious and I'll feel like a complete "Dzus" when someone explains it. Thanks, Gordon ________________________________ Message 18 ____________________________________ Time: 02:31:13 PM PST US From: "Zodie Rocket" Subject: RE: Zenith-List: Rivet spacing My god that hurts my head and I didn=92t even finish reading it all. Can=92t afford a rivet fan spacing tool? Go into the house, bottom drawer of your dresser and yank out those track pants that you never wear any more. Cut a hole in seam and yank out elastic waist band. Now carefully mark lines every ten millimeters. Go out to workshop and count how may rivets you need say 9 now count to 9 on the elastic and place first line on first rivet location. STRETCH waistband so that line #9 is where it is supposed to be. Now you have equal distance for rest of rivets. If you can=92t clamp waistband down or cleco it in place then set sharpie between teeth. After your all done grab some duct tape and safety wire and you can repair your track pants. Elastic cannot be replaced into the pants as it just became to handy in the shop. :-) Put on pants with safety wire as suspenders and grab a coffee. Next comes the bad part! With pants on and coffee in hand call wife out to the workshop to show her just how much of a genius her husband is, If she is anything like mine she will disappear into the house shaking her head vigorously and muttering something about senile old fool or something to that effect ! Mark Townsend Can-Zac Aviation Ltd. HYPERLINK "mailto:president@can-zacaviation.com"president@can-zacaviation.com HYPERLINK "http://www.can-zacaviation.com/"www.can-zacaviation.com -----Original Message----- From: owner-zenith-list-server@matronics.com [mailto:owner-zenith-list-server@matronics.com] On Behalf Of George Swinford Sent: Friday, October 20, 2006 12:17 PM Subject: Zenith-List: Rivet spacing Here's another way to space your rivets: Mark the end rivets in the pattern and measure the distance between them. Divide that distance by the number of equal spaces you need. Be sure to use the number of spaces, which is one less than the number of rivets in the pattern. Enter the resulting number in a calculator with a memory function, and store it in the memory. Layout the distance from an end rivet to the next one in the pattern, using a metric scale or tape measure. From there on, get each successive measurement (from the end rivet) by adding the number in memory to the number in the calculator display. This is more accurate than just measuring the "equal space" dimension from rivet to rivet, since the little errors in measurement don't accumulate. Of course, with this method, you don't have an excuse for adding a rivet fan to your tool collection. George "http://www.matronics.com/Navigator?Zenith-List"http://www.matronics.com /Navigator?Zenith-List "http://forums.matronics.com"http://forums.matronics.com "http://wiki.matronics.com"http://wiki.matronics.com "http://www.matronics.com/contribution"http://www.matronics.com/contribu tion -- 10/20/2006 -- 10/20/2006 ________________________________ Message 19 ____________________________________ Time: 03:14:50 PM PST US Subject: Zenith-List: Re: 701 Dzus plate From: "Geoff Heap" --> Zenith-List message posted by: "Geoff Heap" Gordon. It's as you see it in the top left view. It's almost touching 7-F-14-6R. It starts there and goes way down into the curve. Remember. this is a long piece. Most of it is flat but for the last few inches. The blowup view shows the bottom end of the part only but I think the blowup shows it going around more of the curve than it really does. See pic....Geoff. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=69190#69190 ________________________________ Message 20 ____________________________________ Time: 03:19:14 PM PST US Subject: Zenith-List: Re: 701 Dzus plate From: "Geoff Heap" --> Zenith-List message posted by: "Geoff Heap" Sorry about the pic. I guess I'm over my limit??? Anyway it's in the mail....Geoff Read this topic online here: http://forums.matronics.com/viewtopic.php?p=69192#69192 ________________________________ Message 21 ____________________________________ Time: 03:46:55 PM PST US From: "Wade Jones" Subject: Zenith-List: Fuselage Skins Hello group ,I am not ready to start my fuselage yet .I would like to ask the group what thickness skins are being used on the 601XL fuselage . I know the plans call for .016 ,however I think I would rather go with a thicker material if it is acceptable and not too much a weight penalty . Today I bought several 4X12 ' sheets of .025 6061-T6 for $60.00 each ,this is the cheapest price I have had in my area . Thanks Wade ________________________________ Message 22 ____________________________________ Time: 03:47:24 PM PST US From: "Dave Ruddiman" Subject: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. --> Zenith-List message posted by: "Dave Ruddiman" HERE IS THE OFFICIAL WORD I JUST RECEIVED FROM ZAC ON THE INSPECTION HOLE COVERS. THOUGHT YOU ALL, OR YA'LL IN SOME PARTS MIGHT LIKE TO KNOW WHAT THE MANUFACTURER HAD TO SAY. Dave in Salem ----- Original Message ----- From: "Caleb Gebhardt" Sent: Friday, October 20, 2006 3:24 PM Subject: RE: TECH SUPPORT - Zenith Aircraft Co. > > Hello Dave, > I always suggest that you frame around the opening with L angles. The > reason > behind this is that this will reduce possible buckling or "oil canning" > around the opening. This acts like the flange on a lightening hole. I > doubt > you will have room for that above the fuel tank though. I think you will > be > fine with the 8 A4 rivets to hold the cover on. I'm not sure why you would > need a double row of rivets, and nutplates and screws are nice if you are > planning on opening the cover regularly. The choice is yours, I would just > rivet it on with the 8 A4s if it were me. > > Caleb Gebhardt > Zenith Aircraft Co. > (573) 581-9000 > caleb@zenithair.com > > Technical Support Disclaimer: While we strive to ensure that the > advice/information provided through our support is correct, Zenith > Aircraft > Company does not accept any responsibility for errors or omissions. Any > advise or information that Zenith Aircraft Company gives you via any form > of > communication is not a guarantee that it will correct your problem. It is > only offered as assistance to you. Zenith Aircraft Company will not be > held > responsible for any loss or damage as a result of our advise or > information > supplied. > > > > Message: Request Additional Info, I have cut holes in the top skin of >> the wing for possible future access to the fuel senders. I was going >> to rivet them in place. Out of curiosity I asked the question about >> needing doublers and nutplates for the covers. I received a lot of >> input. Some say this has to have double rows of rivets. Some say a >> doubler and half a dozen nut plates. Some just rivet a disc over the >> hole. What do you say? You guys designed the plane so I would >> appreciate knowing what you think as the people that engineered the >> 801. >> Part: Wing section 13 - page 10 of 11 >> Model: STOL CH 801, 6355 >> ---------------------------------------------------------------------- >> ----- > ________________________________ Message 23 ____________________________________ Time: 03:49:07 PM PST US From: "George Swinford" Subject: Zenith-List: Rivet spacing, again Right on, Dino. Just remember, it isn't the spacing that's critical for strength, it's the number of rivets. Just keep the spacing 40mm or less, but greater than 4 times the rivet diameter. George ________________________________ Message 24 ____________________________________ Time: 05:04:54 PM PST US From: "Dave Ruddiman" Subject: Zenith-List: 801 Wing Root Skin To all you 801 builders, I have a quick question. I have the right wing root skin fitted and drilled. The manual shows to wrap the nose of the skin around and underneath the bottom skin. Does that need to be done now, or should I wait until the wing is installed? Since it is so stiff, is there a trick to rolling it under? Thanks, Dave in Salem ________________________________ Message 25 ____________________________________ Time: 05:26:48 PM PST US From: "Robin Bellach" <601zv@ritternet.com> Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> I've got 4 3-1/2" holes for my senders and I'm covering them with fiberglass covers and screws. I got tired of trying to fiqure out how to easily shape aluminum covers and decided that the fiberglass was much easier to do and was more conducive t0 achivieving a more practical aeorodynamic shape. Shame we have to do all this extra fabrication because of a kit in which the parts don't fit right. It makes scratch building very attractive. ----- Original Message ----- From: "Dave Ruddiman" Sent: Friday, October 20, 2006 5:45 PM Subject: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. > --> Zenith-List message posted by: "Dave Ruddiman" > > > HERE IS THE OFFICIAL WORD I JUST RECEIVED FROM ZAC ON THE INSPECTION HOLE > COVERS. THOUGHT YOU ALL, OR YA'LL IN SOME PARTS MIGHT LIKE TO KNOW WHAT > THE MANUFACTURER HAD TO SAY. > > Dave in Salem > > > ----- Original Message ----- > From: "Caleb Gebhardt" > To: > Sent: Friday, October 20, 2006 3:24 PM > Subject: RE: TECH SUPPORT - Zenith Aircraft Co. > > >> >> Hello Dave, >> I always suggest that you frame around the opening with L angles. The >> reason >> behind this is that this will reduce possible buckling or "oil canning" >> around the opening. This acts like the flange on a lightening hole. I >> doubt >> you will have room for that above the fuel tank though. I think you will >> be >> fine with the 8 A4 rivets to hold the cover on. I'm not sure why you >> would >> need a double row of rivets, and nutplates and screws are nice if you are >> planning on opening the cover regularly. The choice is yours, I would >> just >> rivet it on with the 8 A4s if it were me. >> >> Caleb Gebhardt >> Zenith Aircraft Co. >> (573) 581-9000 >> caleb@zenithair.com >> >> Technical Support Disclaimer: While we strive to ensure that the >> advice/information provided through our support is correct, Zenith >> Aircraft >> Company does not accept any responsibility for errors or omissions. Any >> advise or information that Zenith Aircraft Company gives you via any form >> of >> communication is not a guarantee that it will correct your problem. It is >> only offered as assistance to you. Zenith Aircraft Company will not be >> held >> responsible for any loss or damage as a result of our advise or >> information >> supplied. >> > >> >> > > Message: Request Additional Info, I have cut holes in the top skin of >>> the wing for possible future access to the fuel senders. I was going >>> to rivet them in place. Out of curiosity I asked the question about >>> needing doublers and nutplates for the covers. I received a lot of >>> input. Some say this has to have double rows of rivets. Some say a >>> doubler and half a dozen nut plates. Some just rivet a disc over the >>> hole. What do you say? You guys designed the plane so I would >>> appreciate knowing what you think as the people that engineered the >>> 801. >>> Part: Wing section 13 - page 10 of 11 >>> Model: STOL CH 801, 6355 >>> ---------------------------------------------------------------------- >>> ----- > >> > > > ________________________________ Message 26 ____________________________________ Time: 06:10:41 PM PST US Subject: Zenith-List: Re: 801 Wing Root Skin From: "Tom P" --> Zenith-List message posted by: "Tom P" Wrapping the root skin now is ok you will need a round piece of plastic pipe to get the curve right. I used a 4" diameter pipe if I remember correctly. The ends are trimmed when you attach the wings because you will be fitting the root skin to meet the fuselage once the wings are on. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=69217#69217 ________________________________ Message 27 ____________________________________ Time: 06:50:22 PM PST US From: N5SL Subject: Zenith-List: Upholstery Progress (Pic of the Day) --> Zenith-List message posted by: N5SL Guys: I haven't seen any Pic's of the day lately so I decided to post one or two. Tonight I made some progress on my upholstery. I call it the "Two Cows" interior. This is because I ordered one cowhide and it wasn't enough to do the whole interior (just the seats) so I had to order another cow. They don't match at all but I decided to run with it. Here's what I have so far: http://www.cooknwithgas.com/7_20_06_Upholstery1.JPG The panels and center console was a lot easier to do than I had thought. I used cork board as a backing and 3M spray glue with some 1/2" foam between. Here's an intermediate step on the console: http://www.cooknwithgas.com/7_20_06_Upholstery2.JPG I'll be bringing the whole thing to the airport soon so the clock is ticking on what finish work I can do in my evenings. Happy Building, Scott Laughlin Omaha, Nebraska http://www.cooknwithgas.com/ ________________________________ Message 28 ____________________________________ Time: 07:25:54 PM PST US From: Sigmo@aol.com Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. I am in the process of covering the holes that I had to cut in the wings of my 601XL to access the fuel level senders to trouble shoot an inoperative fuel level gauge. I had not made them accessible when I built the aircraft and the senders were in the top of the tank. During the process I decided to change from the float type mechanical to the capacitance type. These are thicker and stick up considerably above the upper wing surface. I initially made a fiberglass faring that stuck up and they did not look very nice sticking up there so I decided to recess the senders below the surface of the tank top. I did this by cutting a bigger hole and using a cupcake pan section which recesses the sender level with the top of the tank and sealing it well with gaskets. I am able to use a semi flush cover plate held down with screws and nut plates. I wish I had placed the senders in the side of the tank when I built but it's now water under the bridge. Mike Sigman 601XL ________________________________ Message 29 ____________________________________ Time: 07:27:57 PM PST US From: "Robin Bellach" <601zv@ritternet.com> Subject: Re: Zenith-List: Upholstery Progress (Pic of the Day) --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> The two-tone looks great. I'm getting ready to do quite similar but I have two matching gray cows. I'm envious of the two-tone! Do not archive. ----- Original Message ----- From: "N5SL" Sent: Friday, October 20, 2006 8:49 PM Subject: Zenith-List: Upholstery Progress (Pic of the Day) > --> Zenith-List message posted by: N5SL > > Guys: > > I haven't seen any Pic's of the day lately so I decided to post one or > two. Tonight I made some progress on my upholstery. I call it the "Two > Cows" interior. This is because I ordered one cowhide and it wasn't enough > to do the whole interior (just the seats) so I had to order another cow. > They don't match at all but I decided to run with it. Here's what I have > so far: > > http://www.cooknwithgas.com/7_20_06_Upholstery1.JPG > > The panels and center console was a lot easier to do than I had thought. > I used cork board as a backing and 3M spray glue with some 1/2" foam > between. Here's an intermediate step on the console: > > http://www.cooknwithgas.com/7_20_06_Upholstery2.JPG > > I'll be bringing the whole thing to the airport soon so the clock is > ticking on what finish work I can do in my evenings. > > Happy Building, > > Scott Laughlin > Omaha, Nebraska > http://www.cooknwithgas.com/ > > > ________________________________ Message 30 ____________________________________ Time: 07:31:08 PM PST US From: "Dave Ruddiman" Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. --> Zenith-List message posted by: "Dave Ruddiman" You didn't make domed covers by any chance. Did you? I know this subject came up awhile back. I didn't think I would need to, but even trimming the end of the center bolt on the sender doesn't give me enough clearance. Especially after I put on the nylon pieces under the covers. ----- Original Message ----- From: "Robin Bellach" <601zv@ritternet.com> Sent: Friday, October 20, 2006 5:23 PM Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. > --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> > > I've got 4 3-1/2" holes for my senders and I'm covering them with > fiberglass covers and screws. I got tired of trying to fiqure out how to > easily shape aluminum covers and decided that the fiberglass was much > easier to do and was more conducive t0 achivieving a more practical > aeorodynamic shape. Shame we have to do all this extra fabrication because > of a kit in which the parts don't fit right. It makes scratch building > very attractive. > > ----- Original Message ----- > From: "Dave Ruddiman" > To: > Sent: Friday, October 20, 2006 5:45 PM > Subject: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft > Co. > > >> --> Zenith-List message posted by: "Dave Ruddiman" >> >> >> HERE IS THE OFFICIAL WORD I JUST RECEIVED FROM ZAC ON THE INSPECTION HOLE >> COVERS. THOUGHT YOU ALL, OR YA'LL IN SOME PARTS MIGHT LIKE TO KNOW WHAT >> THE MANUFACTURER HAD TO SAY. >> >> Dave in Salem >> >> >> >> >> ----- Original Message ----- >> From: "Caleb Gebhardt" >> To: >> Sent: Friday, October 20, 2006 3:24 PM >> Subject: RE: TECH SUPPORT - Zenith Aircraft Co. >> >> >>> >>> Hello Dave, >>> I always suggest that you frame around the opening with L angles. The >>> reason >>> behind this is that this will reduce possible buckling or "oil canning" >>> around the opening. This acts like the flange on a lightening hole. I >>> doubt >>> you will have room for that above the fuel tank though. I think you will >>> be >>> fine with the 8 A4 rivets to hold the cover on. I'm not sure why you >>> would >>> need a double row of rivets, and nutplates and screws are nice if you >>> are >>> planning on opening the cover regularly. The choice is yours, I would >>> just >>> rivet it on with the 8 A4s if it were me. >>> >>> Caleb Gebhardt >>> Zenith Aircraft Co. >>> (573) 581-9000 >>> caleb@zenithair.com >>> >>> Technical Support Disclaimer: While we strive to ensure that the >>> advice/information provided through our support is correct, Zenith >>> Aircraft >>> Company does not accept any responsibility for errors or omissions. Any >>> advise or information that Zenith Aircraft Company gives you via any >>> form of >>> communication is not a guarantee that it will correct your problem. It >>> is >>> only offered as assistance to you. Zenith Aircraft Company will not be >>> held >>> responsible for any loss or damage as a result of our advise or >>> information >>> supplied. >>> > >>> >>> >> >> Message: Request Additional Info, I have cut holes in the top skin of >>>> the wing for possible future access to the fuel senders. I was going >>>> to rivet them in place. Out of curiosity I asked the question about >>>> needing doublers and nutplates for the covers. I received a lot of >>>> input. Some say this has to have double rows of rivets. Some say a >>>> doubler and half a dozen nut plates. Some just rivet a disc over the >>>> hole. What do you say? You guys designed the plane so I would >>>> appreciate knowing what you think as the people that engineered the >>>> 801. >>>> Part: Wing section 13 - page 10 of 11 >>>> Model: STOL CH 801, 6355 >>>> ---------------------------------------------------------------------- >>>> ----- >> >>> >> >> >> >> >> > > > ________________________________ Message 31 ____________________________________ Time: 07:56:24 PM PST US From: "Robin Bellach" <601zv@ritternet.com> Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> Yes. I made domed fiberglass covers that stick up about 1/2" above the top skin because the ZAC supplied VW Rabbit senders stick up about 3/8", but the domes are tear drop shaped, not round.. ----- Original Message ----- From: "Dave Ruddiman" Sent: Friday, October 20, 2006 9:30 PM Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. > --> Zenith-List message posted by: "Dave Ruddiman" > > > You didn't make domed covers by any chance. Did you? I know this subject > came up awhile back. I didn't think I would need to, but even trimming the > end of the center bolt on the sender doesn't give me enough clearance. > Especially after I put on the nylon pieces under the covers. > > > ----- Original Message ----- > From: "Robin Bellach" <601zv@ritternet.com> > To: > Sent: Friday, October 20, 2006 5:23 PM > Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith > Aircraft Co. > > >> --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> >> >> I've got 4 3-1/2" holes for my senders and I'm covering them with >> fiberglass covers and screws. I got tired of trying to fiqure out how to >> easily shape aluminum covers and decided that the fiberglass was much >> easier to do and was more conducive t0 achivieving a more practical >> aeorodynamic shape. Shame we have to do all this extra fabrication >> because of a kit in which the parts don't fit right. It makes scratch >> building very attractive. >> >> ----- Original Message ----- >> From: "Dave Ruddiman" >> To: >> Sent: Friday, October 20, 2006 5:45 PM >> Subject: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft >> Co. >> >> >>> --> Zenith-List message posted by: "Dave Ruddiman" >>> >>> >>> HERE IS THE OFFICIAL WORD I JUST RECEIVED FROM ZAC ON THE INSPECTION >>> HOLE COVERS. THOUGHT YOU ALL, OR YA'LL IN SOME PARTS MIGHT LIKE TO KNOW >>> WHAT THE MANUFACTURER HAD TO SAY. >>> >>> Dave in Salem >>> >>> >>> >>> >>> ----- Original Message ----- >>> From: "Caleb Gebhardt" >>> To: >>> Sent: Friday, October 20, 2006 3:24 PM >>> Subject: RE: TECH SUPPORT - Zenith Aircraft Co. >>> >>> >>>> >>>> Hello Dave, >>>> I always suggest that you frame around the opening with L angles. The >>>> reason >>>> behind this is that this will reduce possible buckling or "oil canning" >>>> around the opening. This acts like the flange on a lightening hole. I >>>> doubt >>>> you will have room for that above the fuel tank though. I think you >>>> will be >>>> fine with the 8 A4 rivets to hold the cover on. I'm not sure why you >>>> would >>>> need a double row of rivets, and nutplates and screws are nice if you >>>> are >>>> planning on opening the cover regularly. The choice is yours, I would >>>> just >>>> rivet it on with the 8 A4s if it were me. >>>> >>>> Caleb Gebhardt >>>> Zenith Aircraft Co. >>>> (573) 581-9000 >>>> caleb@zenithair.com >>>> >>>> Technical Support Disclaimer: While we strive to ensure that the >>>> advice/information provided through our support is correct, Zenith >>>> Aircraft >>>> Company does not accept any responsibility for errors or omissions. Any >>>> advise or information that Zenith Aircraft Company gives you via any >>>> form of >>>> communication is not a guarantee that it will correct your problem. It >>>> is >>>> only offered as assistance to you. Zenith Aircraft Company will not be >>>> held >>>> responsible for any loss or damage as a result of our advise or >>>> information >>>> supplied. >>>> > >>>> >>>> >>> >>> Message: Request Additional Info, I have cut holes in the top skin of >>>>> the wing for possible future access to the fuel senders. I was going >>>>> to rivet them in place. Out of curiosity I asked the question about >>>>> needing doublers and nutplates for the covers. I received a lot of >>>>> input. Some say this has to have double rows of rivets. Some say a >>>>> doubler and half a dozen nut plates. Some just rivet a disc over the >>>>> hole. What do you say? You guys designed the plane so I would >>>>> appreciate knowing what you think as the people that engineered the >>>>> 801. >>>>> Part: Wing section 13 - page 10 of 11 >>>>> Model: STOL CH 801, 6355 >>>>> ---------------------------------------------------------------------- >>>>> ----- >>> >>>> >>> >>> >>> >>> >>> >> >> >> >> >> > > > ________________________________ Message 32 ____________________________________ Time: 08:09:07 PM PST US Subject: Zenith-List: RAC stick wiring question From: ray.stlaurent@vsea.com --> Zenith-List message posted by: ray.stlaurent@vsea.com I was looking at the Y control stick and my RAC stick grip and realized I haven't a clue how to get the wires safely out of the stick and keep them from being tangled. I've seen pictures but never where the wires went. Thanks - Ray St-Laurent 701/Pegasus wings/Suzuki ________________________________ Message 33 ____________________________________ Time: 10:19:45 PM PST US From: "Dave Ruddiman" Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. --> Zenith-List message posted by: "Dave Ruddiman" What did you use for a pattern? I wonder if the plates for a fabric plates have enough of a dome shape. I just happen to own such a plane. Maybe I'll check tomorrow. Just thinking out loud. Dave in Salem ----- Original Message ----- From: "Robin Bellach" <601zv@ritternet.com> Sent: Friday, October 20, 2006 7:55 PM Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft Co. > --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> > > Yes. I made domed fiberglass covers that stick up about 1/2" above the top > skin because the ZAC supplied VW Rabbit senders stick up about 3/8", but > the domes are tear drop shaped, not round.. > ----- Original Message ----- > From: "Dave Ruddiman" > To: > Sent: Friday, October 20, 2006 9:30 PM > Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith > Aircraft Co. > > >> --> Zenith-List message posted by: "Dave Ruddiman" >> >> >> You didn't make domed covers by any chance. Did you? I know this subject >> came up awhile back. I didn't think I would need to, but even trimming >> the end of the center bolt on the sender doesn't give me enough >> clearance. Especially after I put on the nylon pieces under the covers. >> >> >> ----- Original Message ----- >> From: "Robin Bellach" <601zv@ritternet.com> >> To: >> Sent: Friday, October 20, 2006 5:23 PM >> Subject: Re: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith >> Aircraft Co. >> >> >>> --> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com> >>> >>> I've got 4 3-1/2" holes for my senders and I'm covering them with >>> fiberglass covers and screws. I got tired of trying to fiqure out how to >>> easily shape aluminum covers and decided that the fiberglass was much >>> easier to do and was more conducive t0 achivieving a more practical >>> aeorodynamic shape. Shame we have to do all this extra fabrication >>> because of a kit in which the parts don't fit right. It makes scratch >>> building very attractive. >>> >>> ----- Original Message ----- >>> From: "Dave Ruddiman" >>> To: >>> Sent: Friday, October 20, 2006 5:45 PM >>> Subject: Zenith-List: INSPECTION PLATES - TECH SUPPORT - Zenith Aircraft >>> Co. >>> >>> >>>> --> Zenith-List message posted by: "Dave Ruddiman" >>>> >>>> >>>> HERE IS THE OFFICIAL WORD I JUST RECEIVED FROM ZAC ON THE INSPECTION >>>> HOLE COVERS. THOUGHT YOU ALL, OR YA'LL IN SOME PARTS MIGHT LIKE TO KNOW >>>> WHAT THE MANUFACTURER HAD TO SAY. >>>> >>>> Dave in Salem >>>> >>>> >>>> >>>> >>>> ----- Original Message ----- >>>> From: "Caleb Gebhardt" >>>> To: >>>> Sent: Friday, October 20, 2006 3:24 PM >>>> Subject: RE: TECH SUPPORT - Zenith Aircraft Co. >>>> >>>> >>>>> >>>>> Hello Dave, >>>>> I always suggest that you frame around the opening with L angles. The >>>>> reason >>>>> behind this is that this will reduce possible buckling or "oil >>>>> canning" >>>>> around the opening. This acts like the flange on a lightening hole. I >>>>> doubt >>>>> you will have room for that above the fuel tank though. I think you >>>>> will be >>>>> fine with the 8 A4 rivets to hold the cover on. I'm not sure why you >>>>> would >>>>> need a double row of rivets, and nutplates and screws are nice if you >>>>> are >>>>> planning on opening the cover regularly. The choice is yours, I would >>>>> just >>>>> rivet it on with the 8 A4s if it were me. >>>>> >>>>> Caleb Gebhardt >>>>> Zenith Aircraft Co. >>>>> (573) 581-9000 >>>>> caleb@zenithair.com >>>>> >>>>> Technical Support Disclaimer: While we strive to ensure that the >>>>> advice/information provided through our support is correct, Zenith >>>>> Aircraft >>>>> Company does not accept any responsibility for errors or omissions. >>>>> Any >>>>> advise or information that Zenith Aircraft Company gives you via any >>>>> form of >>>>> communication is not a guarantee that it will correct your problem. It >>>>> is >>>>> only offered as assistance to you. Zenith Aircraft Company will not be >>>>> held >>>>> responsible for any loss or damage as a result of our advise or >>>>> information >>>>> supplied. >>>>> > >>>>> >>>>> >>>> >>>> Message: Request Additional Info, I have cut holes in the top skin of >>>>>> the wing for possible future access to the fuel senders. I was going >>>>>> to rivet them in place. Out of curiosity I asked the question about >>>>>> needing doublers and nutplates for the covers. I received a lot of >>>>>> input. Some say this has to have double rows of rivets. Some say a >>>>>> doubler and half a dozen nut plates. Some just rivet a disc over the >>>>>> hole. What do you say? You guys designed the plane so I would >>>>>> appreciate knowing what you think as the people that engineered the >>>>>> 801. >>>>>> Part: Wing section 13 - page 10 of 11 >>>>>> Model: STOL CH 801, 6355 >>>>>> ---------------------------------------------------------------------- >>>>>> ----- >>>> >>>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >>> >> >> >> >> >> > > > ________________________________ Message 34 ____________________________________ Time: 10:47:41 PM PST US Subject: Zenith-List: Re: Upholstery Progress (Pic of the Day) From: "TxDave" --> Zenith-List message posted by: "TxDave" Very nice, Scott! Man, those seats look comfy. Who sewed your seat covers for you? Dave Clay Temple, TX do not archive Read this topic online here: http://forums.matronics.com/viewtopic.php?p=69246#69246