---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Wed 11/30/11: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 12:21 AM - [Please Read] - Last Official Day of List Fund Raiser! (Matt Dralle) 1. 12:21 AM - Re: spy photo of special projects (Gary L Vogt) 2. 12:29 AM - Re: pic of wing rib (Gary L Vogt) 3. 12:38 AM - Re: grumman with segmented leading edge of wings? (Gary L Vogt) 4. 11:11 AM - Re: spy photo of special projects (FLYaDIVE) 5. 11:18 AM - CDO. Because only a real obsessive compulsive knows the correct order of letters. (Gary Vogt) 6. 12:34 PM - Re: CDO. Because only a real obsessive compulsive knows the correct order of letters. (FLYaDIVE) 7. 05:12 PM - Re: spy photo of special projects (Gary Vogt) 8. 09:03 PM - Cowling filler plate / short stack fairing (Gary L Vogt) ________________________________ Message 0 _____________________________________ Time: 12:21:19 AM PST US From: Matt Dralle Subject: TeamGrumman-List: [Please Read] - Last Official Day of List Fund Raiser! Dear Listers, Its November 30th and that means a couple of things. Its my birthday again, 48 of them, in fact! But it also means that its that last official day of the Matronics Email List Fund Raiser! If you been jones'n over one of those really nice incentive gifts now is the time to jump on one!! If you've been meaning to make a Contribution this month but have been putting it off for some reason, NOW is the time! I will be posting the List of Contributors in a few days, so you'll probably want to be known as a person that supported the Lists! I want to thank everyone that has so generously made a Contribution this year in support of our Lists. It is your generosity that keeps this operation running and I don't ever forget it. Hopefully everyone feels the same. Below are a few more of the nice comments from Listers I've received this year. Please read them over and see if you don't agree. The List Contribution Web Site is fast and easy. Please support our habit by making your Contribution right now: http://www.matronics.com/contribution Or, by dropping a personal check in the mail to: Matt Dralle / Matronics 581 Jeannie Way Livermore CA 94550 Thank you to all in advance! Matt Dralle Matronics Email List Administrator ==================== A Few More List Member Comments ===================== I never would have ended up with the great flying airplane I have without the help of people on the Pietenpol list. Thanks for giving us the medium to communicate our questions, tips and suggestions. Matt P. Thanks for the hard work and maintaining the site commercial free. Good luck for the future and this site has been a source of great friendship. Peter B. It is a great resource. Jim G. Thanks so much for your continuing support of the homebuilt community. Gerald A. You are doing an outstanding job running the list's. Keep it going. Bill V. Thanks for keeping this valuable information source going. Best of all the forums. George A. Another Great year on the RV-List! Thomas E. Still the best source of information (& opinion) for builders on a wide range of issues. Martin H. Matt, thanks for hosting and maintaining the lists! Rumen D. It is a great resource. Bryan R. Thanks for your continuing interest in Van's RV8 kitplanes. Peter C. I'm no longer building or flying but like to keep in touch with the current generation of builders. Best wishes to a great list system. Gerry C. A great list that is most useful for builders. Graham H. Thanks for this wonderful tool! Ralph C. Thanks for a great service to the experimental aviation community. Douglas D. Great topics and loads of useful info keep the subject matter relevant. George H. Thanks for keeping this going. Richard R. Great facility and well managed. Victor F. Thanks for a great service. John D. Thank you for you time and efforts they have made Aviation a better place for everyone. Jim W. I still enjoy getting the list in the morning. Don M. You provide a great resource. David M. You have probably saved a few necks over the years. Robert F. Thank you for being there. Benjamin B. You perform a great service. Bruce M. Thank you for providing this invaluable resource. William D. ________________________________ Message 1 _____________________________________ Time: 12:21:05 AM PST US Subject: Re: TeamGrumman-List: spy photo of special projects From: Gary L Vogt 33% more exit area. Higher exit velocity. Gary Sent from my iPad On Nov 29, 2011, at 1:59 PM, Bruce Smith wrote: > Gary, > > What is that shark gilled mystery? > > Bruce > > On Nov 28, 2011, at 10:23 PM, Gary Vogt wrote: > >> > > > > ________________________________ Message 2 _____________________________________ Time: 12:29:27 AM PST US From: Gary L Vogt Subject: TeamGrumman-List: Re: pic of wing rib The nose over could be filled with bondo. Gary Sent from my iPad On Nov 29, 2011, at 12:12 PM, "923te" <923te@att.net> wrote: > Hmmm... > > looks like the grumman leading edge is in there somewhere..... > > guess we have a STOL wing.. > > > ----- Original Message ----- > From: Bob Steward > To: Gary Vogt > Cc: bob.hodo@yahoo.com ; 923te > Sent: Tuesday, November 29, 2011 1:59 PM > Subject: Re: pic of wing rib > > My understanding from some research and comparing the Grumman airfoil with the Yankee airfoil is that they continued the slope of the upper surface do wn, and then extended a straight line forward from the spar centerline. When the 2 lines met, they made a nice, slightly large, radius for the leading e dge. It was all done on the shop floor, in rather crude conditions, compare d to an empirical and iterative process of optimization. > This left 2 discontinuities in the bottom surface. The one at the spar wh ich is part of that shallow "V" Bob H. mentions, and another just aft of th e leading edge on the bottom, where the "cuff" ends. > --Bob Steward > > Sent from Samsung mobile ________________________________ Message 3 _____________________________________ Time: 12:38:31 AM PST US Subject: TeamGrumman-List: Re: grumman with segmented leading edge of wings? From: Gary L Vogt I'd love to see pics of that wing. Question: Were the wings made and bonded in-house? Question: What was the bonding process? Question: Does the last batch of AG5Bs have the same wing? It looks more p ointed to me. Gary Sent from my iPad On Nov 29, 2011, at 9:23 PM, Bob Hodo wrote: > On the GG, Ken Blackman wrote the following. > > >>>One more thing, before we go, that NASA AA-1 has much more that just ta il > feather mods including a "segmented leading edge wing" which was the Yanke e > airfoil from the wing root out to the middle then abruptly changed to the > "trainer" airfoil as a "cuff" and stopped at the wing tip. this was the m ost > significant deterrent to stall-spins NASA proved with all their tests and, as > result of the same thing on the Long-Eze, Rutan adopted it for his kit des ign > and later just used a series of "fences" down the outboard leading edge th at > accomplished about the same thing. I have heard one plane got modified th is > way and either got a 1 time STC or a field approval. If anyone knows abou t > it, please share.<<< > > If I understand Ken, this would be a grumman with a wing setup not unlike t hat on a Cirrus. Like Ken, if anyone has heard of this, or knows of one wit h the mentioned STC / field approval, then by all means please share the inf o. > > Bob Hodo > GADsden, AL > cheetah > > ________________________________ Message 4 _____________________________________ Time: 11:11:36 AM PST US Subject: Re: TeamGrumman-List: spy photo of special projects From: FLYaDIVE Gary: What exhaust were you planning to use? I guess if you went with the short PF you loose all the fins on one side. Barry On Tue, Nov 29, 2011 at 12:43 AM, Mike Babin wrote: > OOOOOOHHHHHHHH!!!! > > AAAAAAAAHHHHH...... :) > > > On Nov 28, 2011, at 21:23 , Gary Vogt wrote: > > > > > * > > * > > ________________________________ Message 5 _____________________________________ Time: 11:18:45 AM PST US From: Gary Vogt Subject: TeamGrumman-List: CDO. Because only a real obsessive compulsive knows the correct order of letters. ________________________________ Message 6 _____________________________________ Time: 12:34:05 PM PST US Subject: Re: TeamGrumman-List: CDO. Because only a real obsessive compulsive knows the correct order of letters. From: FLYaDIVE I guess I am OCD On Wed, Nov 30, 2011 at 2:15 PM, Gary Vogt wrote: > ________________________________ Message 7 _____________________________________ Time: 05:12:42 PM PST US From: Gary Vogt Subject: Re: TeamGrumman-List: spy photo of special projects Yes, one of the fins will need to be sacrificed on the right side=0A=0A=0A_ _______________________________=0A From: FLYaDIVE =0ATo : teamgrumman-list@matronics.com =0ASent: Wednesday, November 30, 2011 11:0 8 AM=0ASubject: Re: TeamGrumman-List: spy photo of special projects=0A =0A =0AGary:=0A=0AWhat exhaust were you-planning-to use?=0A=0AI guess if yo u went with the short PF you loose all the fins on one side.=0A=0ABarry=0A =0A=0AOn Tue, Nov 29, 2011 at 12:43 AM, Mike Babin wrot e:=0A=0AOOOOOOHHHHHHHH!!!!=0A>=0A>=0A>AAAAAAAAHHHHH...... - :)=0A>=0A>=0A >=0A>=0A>=0A>=0A>On Nov 28, 2011, at 21:23 , Gary Vogt wrote:=0A>=0A>=0A>=0A>_blank">www.aeroelectric.com=0A.com" target="_blank">www. buildersbooks.com=0A="_blank">www.homebuilthelp.com=0A_blank">http://www. matronics.com/contribution=0Ast" target="_blank">http://www.matronics.com /Navigator?TeamGrumman-List=0Atp://forums.matronics.com=0A_blank">http://ww ======== ________________________________ Message 8 _____________________________________ Time: 09:03:56 PM PST US Subject: TeamGrumman-List: Cowling filler plate / short stack fairing From: Gary L Vogt Dan Baisley: your Hole cover is in the mail ---- I see Fletcher is still hand fabricating a metal cover. Do you think they use an English wheel to make the compound curve? Pete Kuhns: your short stack fairing is in the mail. 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