Bug HLG

--- In BugHLG@yahoogroups.com, "Squid" <littlefr2003@...> wrote: > > Hi John, > > here is a comparison of the two airfoils. Selig 3014 Vs Selig 8040 > > http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=original&mode=tn&order=ordinal&start=1&dir=asc > > I will overlay the bug airfoil tonight onto the Selig 3014. It will be quite interesting to see as the Selig 8040 is looking spot on with the overlay. > > Thanks for you huge input! It is very appreciated. > > All the plans are drawn and just awaiting the primary wing set. (the slimmed up ribs) > > Kind Regards > Alan > Alan, 'Fraid you lost me here. (I am easily confused!) Is this the Selig 8040 laid atop the airfoil used for The Bug, or the Selig 8040 over the Selid 3014? (Because I don't see enough difference to BE a difference, when you consider my hand-sanding the finished wing.)

With the airfoil this thin, subribs would be mandatory.   John ________________________________ From: John Gallagher <gldrgidr@...> To: "BugHLG@yahoogroups.com" <BugHLG@yahoogroups.com> Sent: Thursday, March 1, 2012 7:49 PM Subject: Re: [BugHLG] Re: Bug Airfoil - Selig 8040 Vs AG37   Let us compare apples to apples.  Here's a comparison of S3014 vs AG37, both at the same thickness -7.74%. http://groups.yahoo.com/group/BugHLG/photos/album/1385485793/pic/1344587143/view?picmode=&mode=tn&order=ordinal&start=21&count=20&dir=asc   One good feature about the AG37 is the thickness at the trailing part of the airfoil.  It's thicker so won't be so likely to break. So I give a yah to the AG37. Just so everyone understands.   This is going to be a big gamble.  What we really need is someone to build one with the AG37 airfoil and see if it will even work.  One possible problem is that the fabric will wind up resting against the spar in the valleys between the ribs.  This would kill it.   Squid, Seems like you are about there, so suggest that you put both the rib patterns for the original thick airfoil (S3014) and the AG37 rib patterns on the plan. Just to hedge our bets.   We still need a name.  I suggested Bugger.  Anyone else suggest a name?   John   ________________________________ From: Squid <littlefr2003@...> To: BugHLG@yahoogroups.com Sent: Thursday, March 1, 2012 3:34 PM Subject: [BugHLG] Re: Bug Airfoil - Selig 8040 Vs AG37   Sorry do you mean. Go to the AG38 airfoil or you are keen on the AG37? --- In BugHLG@yahoogroups.com, "raincityflyer" <lewis08@...> wrote: > > +1 > > cl [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]

Guy's: I would like to suggest that templates could be made for the S3014,S8040 and even thr Drela foils as time and ambition allows. {of course its easy for me to suggest since it is not my time and effort }  Then we could build spare wings and test differences real time as change over would amount to removing one bolt.   I have been using balsa from my scrap box for my build {still lots left}and purchased enough carbon [1/8] for a couple of bugs so I am ready   Thanks for all the contributions ! Mike ________________________________ From: Squid <littlefr2003@...> To: BugHLG@yahoogroups.com Sent: Thursday, March 1, 2012 3:16 PM Subject: [BugHLG] Re: Bug Airfoil - Selig 7014   Hi John, here is a comparison of the two airfoils. Selig 3014 Vs Selig 8040 http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=original&mode=tn&order=ordinal&start=1&dir=asc I will overlay the bug airfoil tonight onto the Selig 3014. It will be quite interesting to see as the Selig 8040 is looking spot on with the overlay. Thanks for you huge input! It is very appreciated. All the plans are drawn and just awaiting the primary wing set. (the slimmed up ribs) Kind Regards Alan [Non-text portions of this message have been removed]

Let us compare apples to apples.  Here's a comparison of S3014 vs AG37, both at the same thickness -7.74%. http://groups.yahoo.com/group/BugHLG/photos/album/1385485793/pic/1344587143/view?picmode=&mode=tn&order=ordinal&start=21&count=20&dir=asc   One good feature about the AG37 is the thickness at the trailing part of the airfoil.  It's thicker so won't be so likely to break. So I give a yah to the AG37. Just so everyone understands.   This is going to be a big gamble.  What we really need is someone to build one with the AG37 airfoil and see if it will even work.  One possible problem is that the fabric will wind up resting against the spar in the valleys between the ribs.  This would kill it.   Squid, Seems like you are about there, so suggest that you put both the rib patterns for the original thick airfoil (S3014) and the AG37 rib patterns on the plan. Just to hedge our bets.   We still need a name.  I suggested Bugger.  Anyone else suggest a name?   John   ________________________________ From: Squid <littlefr2003@yahoo.com> To: BugHLG@yahoogroups.com Sent: Thursday, March 1, 2012 3:34 PM Subject: [BugHLG] Re: Bug Airfoil - Selig 8040 Vs AG37   Sorry do you mean. Go to the AG38 airfoil or you are keen on the AG37? --- In BugHLG@yahoogroups.com, "raincityflyer" <lewis08@...> wrote: > > +1 > > cl [Non-text portions of this message have been removed]

Sorry - Slipped into Social Media speak there. +1 means I'm also in support of this direction. A trendy way of saying " I agree", "Me, too!", "Ditto", etc. Chris in Seattle --- In BugHLG@yahoogroups.com, "Squid" <littlefr2003@...> wrote: > > Sorry do you mean. Go to the AG38 airfoil or you are keen on the AG37? > > > --- In BugHLG@yahoogroups.com, "raincityflyer" <lewis08@> wrote: > > > > +1 > > > > cl >

Sorry do you mean. Go to the AG38 airfoil or you are keen on the AG37? --- In BugHLG@yahoogroups.com, "raincityflyer" <lewis08@...> wrote: > > +1 > > cl

+1 cl --- In BugHLG@yahoogroups.com, "Squid" <littlefr2003@...> wrote: > > What do you think of this more modern airfoil for a possible variation? > > http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/614597519/view?picmode=original&mode=tn&order=ordinal&start=1&dir=asc > > Any thoughts would be great! >

What do you think of this more modern airfoil for a possible variation? http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/614597519/view?picmode=original&mode=tn&order=ordinal&start=1&dir=asc Any thoughts would be great!

Hi John, here is a comparison of the two airfoils. Selig 3014 Vs Selig 8040 http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=original&mode=tn&order=ordinal&start=1&dir=asc I will overlay the bug airfoil tonight onto the Selig 3014. It will be quite interesting to see as the Selig 8040 is looking spot on with the overlay. Thanks for you huge input! It is very appreciated. All the plans are drawn and just awaiting the primary wing set. (the slimmed up ribs) Kind Regards Alan

Sorry guys.   It's is S3014  not S7014.  This is a very popular airfoil for builtup gliders.  Almost all of the Skybench gliders are S3014.   John  ________________________________ From: kb11troy <kb10troy@...> To: BugHLG@yahoogroups.com Sent: Thursday, March 1, 2012 2:19 PM Subject: [BugHLG] Re: Bug Airfoil - Selig 7014   The UIUC database has coordinates for the Selig 7012. It looks pretty close. Rick --- In BugHLG@yahoogroups.com, "Squid" <littlefr2003@...> wrote: > > Hi guys > > Yes i do have the original plan. But i cannot find any .dat files or any files in airfoil databases for a Selig 7014. Does any one have one out there? > > Dod you guys check out how exactly the Selig/Donovan SD8040 fitted the bugs shape off of the plan? > > http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc > [Non-text portions of this message have been removed]

Sorry Squid.  It's s3014.  Most of the Selig airfoils look similar so you can't compare them by eye. ________________________________ From: Squid <littlefr2003@...> To: BugHLG@yahoogroups.com Sent: Thursday, March 1, 2012 1:42 PM Subject: [BugHLG] Bug Airfoil - Selig 7014   Hi guys Yes i do have the original plan. But i cannot find any .dat files or any files in airfoil databases for a Selig 7014. Does any one have one out there? Dod you guys check out how exactly the Selig/Donovan SD8040 fitted the bugs shape off of the plan? http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc [Non-text portions of this message have been removed]

The UIUC database has coordinates for the Selig 7012. It looks pretty close. Rick --- In BugHLG@yahoogroups.com, "Squid" <littlefr2003@...> wrote: > > Hi guys > > Yes i do have the original plan. But i cannot find any .dat files or any files in airfoil databases for a Selig 7014. Does any one have one out there? > > Dod you guys check out how exactly the Selig/Donovan SD8040 fitted the bugs shape off of the plan? > > http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc >

Hi guys Yes i do have the original plan. But i cannot find any .dat files or any files in airfoil databases for a Selig 7014. Does any one have one out there? Dod you guys check out how exactly the Selig/Donovan SD8040 fitted the bugs shape off of the plan? http://groups.yahoo.com/group/BugHLG/photos/album/520307090/pic/1466294142/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc