---------------------------------------------------------- Zenith-List Digest Archive --- Total Messages Posted Mon 10/20/03: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:47 AM - Spar holes (H. Robert Schoenberger) 2. 03:43 PM - Re: rear wing attachment 701 (Robert Hillebrand) 3. 04:02 PM - Re: rear wing attachment 701 (Jim Frisby) 4. 04:10 PM - Re: Brake fluid (caspainhower@aep.com) 5. 05:30 PM - Re: rear wing attachment 701 (Benford2@aol.com) ________________________________ Message 1 _____________________________________ Time: 10:47:49 AM PST US From: "H. Robert Schoenberger" Subject: Zenith-List: Spar holes --> Zenith-List message posted by: "H. Robert Schoenberger" Doug Mattson wrote: I would like to poke a BD inch hole in the web of the spar between the >first and second ribs to run wire through. Anyone have any opinion if >this is a good idea or not? Doug . . . as a civil engineer we were taught that if we HAD to put in a hole in a web, then the hole should be near the middle. (This can be exactly calculated.) During normal lift on the wing, i.e., the wing out to the tip is being bent upwards, the top of the spar is in highest compression and the bottom of the spar is in the highest tension. Somewhere near the middle of the spar (the web) there is a changeover zero point which is not in compression or tension. Wings are different than most structures such as a floor joist which is always being bent in one direction. When there is a sudden uplift or an unusual attitude such as flying upside down, the wing out to the wingtip is then being pushed down. In this case, the top of the spar is in tension and the bottom in compression. When we drilled electric and plumbing holes in the floor joists of the homes I used to build, the rule was to put them as close to the middle as possible. Personally, because the spar is such a critical element in living to fly another day, I wouldn't think of putting any holes not shown on the plans in the spar web without checking with the designer. My guess is that it's much better to put any such holes as close to the tip as possible rather than near the root, but again check with the designer. Hap Schoenberger 701. ________________________________ Message 2 _____________________________________ Time: 03:43:17 PM PST US From: Robert Hillebrand Subject: Re: Zenith-List: rear wing attachment 701 --> Zenith-List message posted by: Robert Hillebrand that would be great if I had known that. I started to build my 701 back in 1993. The instructions said to rivet the root skin then trim after you fit to fusalage. Thanks for the note good luck on your 801.......Bo Benford2@aol.com wrote:--> Zenith-List message posted by: Benford2@aol.com In a message dated 10/19/2003 12:02:31 PM Mountain Daylight Time, edair701@adelphia.net writes: > > > I have just finished fitting my wings but have not drilled the rear > attachment holes. Don't know how to get in there to drill. Can you cut away > material on the wing so that you can drill those holes? > > Robert, > On the 801 we all drilled those holes before riveting on the root skins. Isn't the 701 the same way????????? Ben Haas N801BH. --------------------------------- ________________________________ Message 3 _____________________________________ Time: 04:02:53 PM PST US From: "Jim Frisby" Subject: Re: Zenith-List: rear wing attachment 701 --> Zenith-List message posted by: "Jim Frisby" Ben, The books told us (801 builders) to rivet the root skin on when assembling the wing. Then later they tell you to take it back off, there is a change in the 801 manuals that advise you to wait to rivet the root skins until the final assembly. Jim do not archive >From: Benford2@aol.com >Reply-To: zenith-list@matronics.com >To: zenith-list@matronics.com >Subject: Re: Zenith-List: rear wing attachment 701 >Date: Sun, 19 Oct 2003 21:28:57 EDT > >--> Zenith-List message posted by: Benford2@aol.com > >In a message dated 10/19/2003 12:02:31 PM Mountain Daylight Time, >edair701@adelphia.net writes: > > > > > > > I have just finished fitting my wings but have not drilled the rear > > attachment holes. Don't know how to get in there to drill. Can you cut >away > > material on the wing so that you can drill those holes? > > > > Robert, > > > >On the 801 we all drilled those holes before riveting on the root skins. >Isn't the 701 the same way????????? > >Ben Haas N801BH. > > Enjoy MSN 8 patented spam control and more with MSN 8 Dial-up Internet ________________________________ Message 4 _____________________________________ Time: 04:10:47 PM PST US Subject: Re: Zenith-List: Brake fluid From: caspainhower@aep.com 10/20/2003 07:10:29 PM --> Zenith-List message posted by: caspainhower@aep.com >DOT 5 is silicone based I believe which should be compatible w/ any system components. I would research this more before I did it though! Aaron is right, any hydralic brake system should be compatable with the DOT 5. However, DOT 5 cannot be mixed with the non-silicone based fluid (dot 3, 4 or 5.1). Check with the manufacturer before making a final decision. Craig S. 601 XL This e-mail message and all attachments transmitted with it from the Nuclear Generation Group of American Electric Power are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. ________________________________ Message 5 _____________________________________ Time: 05:30:28 PM PST US From: Benford2@aol.com Subject: Re: Zenith-List: rear wing attachment 701 --> Zenith-List message posted by: Benford2@aol.com In a message dated 10/20/2003 5:03:38 PM Mountain Daylight Time, marslander@hotmail.com writes: > > Ben, > The books told us (801 builders) to rivet the root skin on when assembling > the wing. Then later they tell you to take it back off, there is a change > in the 801 manuals that advise you to wait to rivet the root skins until the > > final assembly. > Jim > do not archive > > Zenith manuals are NEVER wrong. !!!!!!! Ben, do not archive, because we all know the real answer...