---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Mon 08/12/19: 7 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:06 AM - A new Europa video. Featuring Andy Draper. (Hitchflight) 2. 12:24 PM - Re: A new Europa video. Featuring Andy Draper. (JonathanMilbank) 3. 01:12 PM - Re: A new Europa video. Featuring Andy Draper. (Hitchflight) 4. 02:38 PM - Re: Reaming of spar and CM bushes (William Daniell) 5. 02:39 PM - Re: Reaming of spar and CM bushes (n7188u) 6. 05:38 PM - Re: Reaming of spar and CM bushes (Bud Yerly) 7. 06:32 PM - Europa monowheel instrument panel cad drawing (Rich) ________________________________ Message 1 _____________________________________ Time: 06:06:45 AM PST US Subject: Europa-List: A new Europa video. Featuring Andy Draper. From: "Hitchflight" https://www.theeuropaclub.org/the-europa/video-log-in-required/a-brief-history-of-the-europa Andy Draper shares hitherto little known facts and pictures during this remarkable presentation. A warm and welcoming audience included Ivan Shaw. Enjoy! Regards Bob Read this topic online here: http://forums.matronics.com/viewtopic.php?p=490808#490808 ________________________________ Message 2 _____________________________________ Time: 12:24:24 PM PST US Subject: Europa-List: Re: A new Europa video. Featuring Andy Draper. From: "JonathanMilbank" So how do I log in? I can't see where on the page is stated "Log in". Blame it on advancing decrepitude! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=490811#490811 ________________________________ Message 3 _____________________________________ Time: 01:12:45 PM PST US Subject: Europa-List: Re: A new Europa video. Featuring Andy Draper. From: "Hitchflight" JonathanMilbank wrote: > So how do I log in? I can't see where on the page is stated "Log in". Blame it on advancing decrepitude! Its the normal member Log-in page: https://www.theeuropaclub.org/members/ Then when you next visit: https://www.theeuropaclub.org/the-europa/video-log-in-required/a-brief-history-of-the-europa the video will appear. Many Club members find it useful to set their tablet to default acceptance of their unique password. If a password has been forgotten, it can be retrieved here: https://www.theeuropaclub.org/members/forgotten-password Trust that helps. Regards Bob Read this topic online here: http://forums.matronics.com/viewtopic.php?p=490813#490813 ________________________________ Message 4 _____________________________________ Time: 02:38:46 PM PST US From: William Daniell Subject: Re: Europa-List: Reaming of spar and CM bushes You rotated the pins in flight?!! Yikes! It kinda makes sense but .... William Daniell LONGPORT On Sun, Aug 11, 2019 at 4:35 AM D McFadyean wrote: > I would add that in level flight at 1g, my spar pins are as easy to rotat e > in their holes as when sat on the ground. > > > DMcF. > > On 11 August 2019 at 09:19 D McFadyean > wrote: > > That analysis assumes the fuselage structure to be inelastic and utterly > unyielding, whilst the spar is privaleged to flex. > > All of the vertical loads going in to the lift pins have to pass through > the fus structure too, which will yield to a greater or lesser extent. > > > Duncan Mcf. > > On 10 August 2019 at 22:47 Pete wrote: > > > What i have never understood, is why the cockpit module spar pin bushings > are not vertical slots, because when the wings are flexing under G, the > lift pins take the fuse lift loads, and the spar flexing (under positive > G) actually force the spar pins _downard_ against the cockpit > module....obviously totally counter-productive. > > Pete > A239 > > On Aug 10, 2019, at 5:29 PM, Bud Yerly < budyerly@msn.com> wrote: > > Fred, > > Back before my time when mod 52 was done for the GW increase. The classi c > had two 3/8 pins originally. Mod 52 uses the =C2=BD inch pins and a spar strap . > > > As the wings pull forward under load, the fuselage would flex so they put > in the cross bar and the new sockets. > > > Then the concern was that the starboard wing spar could become dislodged > from the socket and interfere with controls. The quick fix was to hold i n > the spar tip with a pip pin. The port wing was figured would stay put, a nd > the spar strap would prevent flexing of the spar. > > > That is all I know. Andy would have the particulars on the detailed > history. It sort of all makes sense. > > > Best Regards, > > Bud Yerly > > > Sent from Mail for > Windows 10 > > > ------------------------------ > *From:* owner-europa-list-server@matronics.com < > owner-europa-list-server@matronics.com> on behalf of Fred Klein < > freddythek10@gmail.com> > *Sent:* Thursday, August 8, 2019 1:29:43 AM > *To:* europa-list > *Subject:* Re: Europa-List: Reaming of spar and CM bushes > > Budyou mention the use of the SouthCo pip pin on the port side a nd the > Allen bolt pin on starboard. > > Do you know the reason for using different types of pins here? > > Is there any downside to using SouthCo pip pins both port and > starboard?seems I=99ve heard that some builders have done so. > > Fred > > On Aug 7, 2019, at 8:35 PM, Bud Yerly < budyerly@msn.com> wrote: > > The SouthCo pip pin is nominally .4985 inches. > The Allen bolt pin for the starboard side is .497 to .495. > > ________________________________ Message 5 _____________________________________ Time: 02:39:55 PM PST US Subject: Europa-List: Re: Reaming of spar and CM bushes From: "n7188u" I installed my wings around 3 months ago. In my case, maybe luck, I had no need for reaming or do I need tapered pins to install the wings now. I need to clarify that as the former owner of a couple fo gliders I have plenty of experience assembling the wings on these kind of planes so I have a feel for moving wings and wiggling them to achieve proper alignment before I drive the pins in. I use saw horses when installing the wings. In the case of my Europa, minute adjustments of the wings (up, down, fwd and aft) will result in either perfectly aligned bushings or pins that will not go in. I don't force if the pins don't go in, I re-adjust the wings and try again. But I do know my pins will go in easely if things are set properly so I just adjust until pins go in. The reason I attribute the proper bushing alignment in my plane is that I didn't follow the manual when it came to cockpit module bushing installation. I waited until the wings where being fitted to the fuselage. Not easy to do and required some custom made tools to make it happen. I am not advocating not following the manual but I found that the way the manual told you to bond these bushings so early in the build and then expect them to align at the end made no sense. My wings mated perfectly when rigged outside the airplane so I figured that all I had to do was make sure those CM bushings were not out of alignment at the end. BTW, I used a bubble level used for leveling machine shop machines which are ridiculously accurate for setting the wings incidence (what fun did I have, it drove me crazy!!). Also, and this may be contrary to some advice, I was more concerned about incidence than sweep. That doesn't mean I didn't got sweep very close, but I didn't force the wings to have perfect sweep (I think I got within .05" - .1"). My reasoning here was that if you force the wings to have a perfect sweep before setting the lift pins, when taken apart they will never want to go in smooth and easy again. So my rule during lift pin setup was to not force the wings fore and aft too much so as to prevent throwing the spar bushings out of alignment. If interested, go to my build site (https://myeaa.org/?myproject&proj=7S3RojQBL&cat=wings&listcat=) and scroll down until you find the entry about bonding the CM bushings. The entries in this log are not intended to be assembly instructions so I don't know how clear it will be. If you have questions ask but I would never override anything Bud instructs (he has been my mentor for this build and an invaluable resource). I still have to fly this plane to find out if these stuff I did will result in a nice flying plane so don't trust anything I say :) Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=490815#490815 ________________________________ Message 6 _____________________________________ Time: 05:38:01 PM PST US From: Bud Yerly Subject: RE: Europa-List: Reaming of spar and CM bushes Just put saw horses under your wings like you did when you rigged it initia lly. It works. I just can=92t figure out how I can twist around in my cockpit without unst rapping to check it in flight! That would be a heck of an accident report. Bud Sent from Mail for Window s 10 ________________________________ From: owner-europa-list-server@matronics.com on behalf of William Daniell Sent: Monday, August 12, 2019 5:41:02 PM Subject: Re: Europa-List: Reaming of spar and CM bushes You rotated the pins in flight?!! Yikes! It kinda makes sense but .... William Daniell LONGPORT On Sun, Aug 11, 2019 at 4:35 AM D McFadyean > wrote: I would add that in level flight at 1g, my spar pins are as easy to rotate in their holes as when sat on the ground. DMcF. On 11 August 2019 at 09:19 D McFadyean > wrote: That analysis assumes the fuselage structure to be inelastic and utterly un yielding, whilst the spar is privaleged to flex. All of the vertical loads going in to the lift pins have to pass through th e fus structure too, which will yield to a greater or lesser extent. Duncan Mcf. On 10 August 2019 at 22:47 Pete > wrote: What i have never understood, is why the cockpit module spar pin bushings a re not vertical slots, because when the wings are flexing under G, the lift pins take the fuse lift loads, and the spar flexing (under positive G) ac tually force the spar pins _downard_ against the cockpit module....obvious ly totally counter-productive. Pete A239 On Aug 10, 2019, at 5:29 PM, Bud Yerly < budyerly@msn.com> wrote: Fred, Back before my time when mod 52 was done for the GW increase. The classic had two 3/8 pins originally. Mod 52 uses the =BD inch pins and a spar stra p . As the wings pull forward under load, the fuselage would flex so they put i n the cross bar and the new sockets. Then the concern was that the starboard wing spar could become dislodged fr om the socket and interfere with controls. The quick fix was to hold in th e spar tip with a pip pin. The port wing was figured would stay put, and t he spar strap would prevent flexing of the spar. That is all I know. Andy would have the particulars on the detailed histor y. It sort of all makes sense. Best Regards, Bud Yerly Sent from Mail for Window s 10 ________________________________ From: owner-europa-list-server@matronics.com > on behalf of Fred Klein > Sent: Thursday, August 8, 2019 1:29:43 AM >> Subject: Re: Europa-List: Reaming of spar and CM bushes Bud=85you mention the use of the SouthCo pip pin on the port side and the A llen bolt pin on starboard. Do you know the reason for using different types of pins here? Is there any downside to using SouthCo pip pins both port and starboard?=85 seems I=92ve heard that some builders have done so. Fred On Aug 7, 2019, at 8:35 PM, Bud Yerly < budyerly@msn.com> wrote: The SouthCo pip pin is nominally .4985 inches. The Allen bolt pin for the starboard side is .497 to .495. ________________________________ Message 7 _____________________________________ Time: 06:32:12 PM PST US Subject: Europa-List: Europa monowheel instrument panel cad drawing From: "Rich" Hello all, I've searched the forums high and low for a cad drawing of a Monowheel instrument panel blank. I did come across one drawing and downloaded, but was unusable for me. I've cut several 0.080" aluminum panels for certified aircraft on my cnc router and would now like to cut a panel for the Europa Monowheel. If someone has gone to the trouble of all the trial fitting of paper or hardboard test blanks and might wish to share their .dxf or .ai file would be greatly appreciated! My preferred design and toolpathing software is Rhinocad and can utilize a variety of file types if .dxf or .ai isn't available to be shared. Any help or suggestions much appreciated. Kind regards, Richard Read this topic online here: http://forums.matronics.com/viewtopic.php?p=490820#490820 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-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/europa-list Browse Digests http://www.matronics.com/digest/europa-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.