---------------------------------------------------------- Zenith701801-List Digest Archive --- Total Messages Posted Mon 05/09/11: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:19 AM - Re: Re: 701 Buffet at slow speeds (John Bolding) 2. 05:43 AM - Re: Re: 701 Buffet at slow speeds (BobKat) 3. 07:03 AM - Machining Rivet Heads (Perry Delano) 4. 10:31 AM - Rudder pedal loads (Bruce Cruikshank) 5. 03:29 PM - Re: Rudder pedal loads (MacDonald Doug) 6. 06:09 PM - Re: 701 Buffet at slow speeds (Dan Wilde) 7. 07:48 PM - Re: Rudder pedal loads (Tommy Walker) ________________________________ Message 1 _____________________________________ Time: 05:19:51 AM PST US From: "John Bolding" Subject: Re: Zenith701801-List: Re: 701 Buffet at slow speeds Jump over to the "other" 701 yahoo group, LOTS of testing of exactly what you're wishing for has already gone on. LO&SLO John ----- Original Message ----- From: "ronlee" Sent: Sunday, May 08, 2011 9:47 PM Subject: Zenith701801-List: Re: 701 Buffet at slow speeds > > Do I wish the wing profile continued over the cabin, you bet. I truly > believe it would be a better plane if it did, as I suspect the buffeting > MAY start there. Does the stall (buffeting) start over the cabin long > before the rest of the wing, I have no doubt. > All in all I love to fly the 701 very much but believe there is room for > improvements in several areas. To be fair you could say that about any > airplane though. > > -------- > Ron Lee > Tucson, Arizona > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=339277#339277 > > > ________________________________ Message 2 _____________________________________ Time: 05:43:23 AM PST US From: "BobKat" Subject: Re: Zenith701801-List: Re: 701 Buffet at slow speeds Mine does the same thing and I put X braces on all the olarger unsupported panels. I don't know if it helped or not, but once you get used to it and realize that something isn't coming apart, you sort of tune it out. I calculated what my X braces weighed once, and it wasn't all that much, only a few pounds, though every little bit helps. Update on my plane - finished painting it and put the wings back on yesterday. For the time being I'm leaving off the slats and putting on JG's VGs! Maybe fly it a bit with no slats or VG's and measure all the V speeds as best I can, and report later on any differences. It looks a bit strange right now with the slat hangers on the leading edges but no slats. -----Original Message----- From: ronlee Sent: Sunday, May 08, 2011 9:47 PM Subject: Zenith701801-List: Re: 701 Buffet at slow speeds My 701 does the same thing. What makes it do that I have no idea, but I do make use it to control my speed on landings. It's like a built in stall indicator except no conventional stall occurs, just the big controllable mush. Do I wish the wing profile continued over the cabin, you bet. I truly believe it would be a better plane if it did, as I suspect the buffeting MAY start there. For one thing I could peer into the wing at a sight glass and know exactly how much gas I have. I could run a vent line between the gas tanks to equalize the pressure of the tanks so they would feed evenly, Cessna does it that way. Does the stall (buffeting) start over the cabin long before the rest of the wing, I have no doubt. All in all I love to fly the 701 very much but believe there is room for improvements in several areas. To be fair you could say that about any airplane though. -------- Ron Lee Tucson, Arizona Read this topic online here: http://forums.matronics.com/viewtopic.php?p=339277#339277 ________________________________ Message 3 _____________________________________ Time: 07:03:38 AM PST US From: "Perry Delano" Subject: Zenith701801-List: Machining Rivet Heads Tommy, Bobkat, Larry and Randy, I appologize for the slow reply but please accept my belated thanks for all your advice. I ended up following part of the manual's advice and Mark Townsend's on the rivet head. I heated them up until they glowed and then took a 135 degree bit and drilled. Seemed to work fine. With respect to the primer, I went with Zinc Chromate. I have not opened it yet, but was told it was the same consistency as paint rather than the paste like mentioned in the builders manual. Expensive stuff though $200/gallon. I did find the place to buy an updated manual on the Zenith site as well as the list of updates to the manual and drawings with the links you gave me Tommy. Now, got to get moving on the building. Again thanks to all, Perry ________________________________ Message 4 _____________________________________ Time: 10:31:10 AM PST US Subject: Zenith701801-List: Rudder pedal loads From: Bruce Cruikshank I'm concerned about high rudder pedal loads, due to a physical limitation. Does reducing the "vee" angle in the lower nose gear bearing help. I while back there were some postings about putting springs in the nose gear steering rods. Did that lower the rudder loads on the ground and in the air? Bruce 750 builder ________________________________ Message 5 _____________________________________ Time: 03:29:12 PM PST US From: MacDonald Doug Subject: Re: Zenith701801-List: Rudder pedal loads Bruce, I'm a 701 scratch builder and am helping build a 750.- The rudder load is a little stiff at first but if you put a good grease on it during f inal assembly, it does loosen up a bit with use.- The 701 rudder doesn't self center and take a little getting used too but after 40 hrs I don't eve n notice it anymore. - During the brief flight I had in the 750 it didn't need much rudder in flig ht.- It seems to have much less-adverse yaw-than the 701.- Of cours e, your milage may vary. - Doug MacDonald CH-701 NW Ontario, Canada - Do Not Archive --- On Mon, 5/9/11, Bruce Cruikshank wrote: From: Bruce Cruikshank Subject: Zenith701801-List: Rudder pedal loads Received: Monday, May 9, 2011, 11:15 AM I'm concerned about high rudder pedal loads, due to a physical limitation. - Does reducing the "vee" angle in the lower nose gear bearing help.- I while back there were some postings about putting springs in the nose gear steering rods.- Did that lower the rudder loads on the ground and in the air?- Bruce- 750 builder ________________________________ Message 6 _____________________________________ Time: 06:09:52 PM PST US From: Dan Wilde Subject: Re: Zenith701801-List: 701 Buffet at slow speeds Phil: I have almost 200 hours on my 701 and find the plane a little noisy but not too bad. I agree with an earlier poster, use a noise canceling head set and keep the weight off the airplane. Dan Wilde N948DW > * > > > * ________________________________ Message 7 _____________________________________ Time: 07:48:55 PM PST US Subject: Re: Zenith701801-List: Rudder pedal loads From: Tommy Walker I think Larry at Macs Machine shop has a partial solution to this. He's on most of the Zenith sites. On Mon, May 9, 2011 at 11:15 AM, Bruce Cruikshank wrote: > I'm concerned about high rudder pedal loads, due to a physical limitation. > Does reducing the "vee" angle in the lower nose gear bearing help. I while > back there were some postings about putting springs in the nose gear > steering rods. Did that lower the rudder loads on the ground and in the > air? > > Bruce 750 builder > > * > > * > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message zenith701801-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Zenith701801-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/zenith701801-list Browse Digests http://www.matronics.com/digest/zenith701801-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.