---------------------------------------------------------- Glasair-List Digest Archive --- Total Messages Posted Sat 09/21/13: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:07 PM - Vortex Generators (Bob Granley) 2. 05:35 PM - Re: Vortex Generators (Dick Gossen) 3. 06:22 PM - Re: Vortex Generators (Bob Granley) 4. 06:48 PM - Re: Vortex Generators (jhb478) 5. 07:05 PM - Re: Vortex Generators (Bob Granley) ________________________________ Message 1 _____________________________________ Time: 01:07:40 PM PST US From: "Bob Granley" Subject: Glasair-List: Vortex Generators Hello All.. Have had much success with these on Yaks and other airshow planes. 1-15% on the low end is huge. I put some on my Glasair at 10% of cord but really did not see much difference in the stall speed. Has anyone else put Vortex generators on and what is your experience please? Thanks Much, Bob ________________________________ Message 2 _____________________________________ Time: 05:35:24 PM PST US From: Dick Gossen Subject: Re: Glasair-List: Vortex Generators Hi Bob, which Glasair model do you have? On Sep 21, 2013, at 2:03 PM, Bob Granley wrote: > Hello All.. > > Have had much success with these on Yaks and other airshow planes. 1-15% on the low end is huge. I put some on my Glasair at 10% of cord but really did not see much difference in the stall speed. Has anyone else put Vortex generators on and what is your experience please? > > Thanks Much, > > Bob > > > > ________________________________ Message 3 _____________________________________ Time: 06:22:37 PM PST US From: "Bob Granley" Subject: RE: Glasair-List: Vortex Generators Evening Dick, I bought a Glasair 1 TD.early model with low hours. I have put some yarn on the wing at intervals. Unfortunately poorly filmed so I need to do it again. What seemed odd and I am not drawing conclusions here yet as I did not get the audio with it to give perspective, but it appeared that the wing root to 3' was stalling long before the rest of the wing. Just looking for some owners experience.or suggestions. Thanks! Bob From: owner-glasair-list-server@matronics.com [mailto:owner-glasair-list-server@matronics.com] On Behalf Of Dick Gossen Sent: Saturday, September 21, 2013 5:35 PM Subject: Re: Glasair-List: Vortex Generators Hi Bob, which Glasair model do you have? On Sep 21, 2013, at 2:03 PM, Bob Granley > wrote: Hello All.. Have had much success with these on Yaks and other airshow planes. 1-15% on the low end is huge. I put some on my Glasair at 10% of cord but really did not see much difference in the stall speed. Has anyone else put Vortex generators on and what is your experience please? Thanks Much, Bob style="color: rgb(149, 79, 114); text-decoration: underline; ">http://www.matronics.com/Navigator?Glasair-List rgb(149, 79, 114); text-decoration: underline; ">http://forums.matronics.com style="color: rgb(149, 79, 114); text-decoration: underline; ">http://www.matronics.com/contribution ________________________________ Message 4 _____________________________________ Time: 06:48:07 PM PST US From: jhb478 Subject: Re: Glasair-List: Vortex Generators I have a drawing from Harry Riblett showing drooped strakes at the root to fix that situation.=0AUnsure if anyone has tried it yet.=0AJohn Bolding=0A =C2-=0AI have a buddy that has installed VG's on 3 different airplanes, a ll with good/VERY good results but he found placement was pretty critical. =0A =0A=0A________________________________=0A From: Bob Granley =0ATo: glasair-list@matronics.com =0ASent: Saturday, September 2 1, 2013 8:22 PM=0ASubject: RE: Glasair-List: Vortex Generators=0A =0A=0A =0AEvening Dick,=0A=C2-=0AI bought a Glasair 1 TDearly model wit h low hours. I have put some yarn on the wing at intervals. Unfortunately p oorly filmed so I need to do it again. What seemed odd and I am not drawing conclusions here yet as I did not get the audio with it to give perspectiv e, but it appeared that the wing root to 3=99 =C2-was stalling long before the rest of the wing.=0A=C2-=0AJust looking for some owners exper ienceor suggestions. Thanks!=0A=C2-=0ABob=0A=C2-=0A=C2-=0A =C2-=0A=C2-=0AFrom:owner-glasair-list-server@matronics.com [mailto:owne r-glasair-list-server@matronics.com] On Behalf Of Dick Gossen=0ASent: Satur day, September 21, 2013 5:35 PM=0ATo: glasair-list@matronics.com=0ASubject: Re: Glasair-List: Vortex Generators=0A=C2-=0AHi Bob, which Glasair model do you have?=0AOn Sep 21, 2013, at 2:03 PM, Bob Granley wrote:=0A=0A=0AHello All..=0A>=C2-=0A>Have had much success with the se on Yaks and other airshow planes. 1-15% on the low end is huge. I put so me on my Glasair at 10% of cord but really did not see much difference in t he stall speed. Has anyone else put Vortex generators on and what is your e xperience please?=0A>=C2-=0A>Thanks Much,=0A>=C2-=0A>Bob=0A>=C2-=0A> =C2-=0A>style="color: rgb(149, 79, 114); text-decoration: underline; "> http://www.matronics.com/Navigator?Glasair-List=0A>rgb(149, 79, 114); text- decoration: underline; ">http://forums.matronics.com/=0A>style="color: rg b(149, 79, 114); text-decoration: underline; ">http://www.matronics.com/con tribution=0A>=C2-=0A>=C2-=0A=C2-=0A=C2-=0A=C2-=0Ahttp://www.matro nics.com/Navigator?Glasair-List=0Ahttp://forums.matronics.com=0Ahttp://www. =========================0A = ________________________________ Message 5 _____________________________________ Time: 07:05:31 PM PST US From: "Bob Granley" Subject: RE: Glasair-List: Vortex Generators Black sciencecompletely! Would love to see the drawing if you are willing to share? My first question on watching the poor video was this the strake causing this? My understanding is that the strake was added because of the docile stall characteristics. It appeared much different than the rest of the wing and now wondering if I should attempt to put them on different chord lengths. As long as both wings are the samethoughts? Bob From: owner-glasair-list-server@matronics.com [mailto:owner-glasair-list-server@matronics.com] On Behalf Of jhb478 Sent: Saturday, September 21, 2013 6:48 PM Subject: Re: Glasair-List: Vortex Generators I have a drawing from Harry Riblett showing drooped strakes at the root to fix that situation. Unsure if anyone has tried it yet. John Bolding I have a buddy that has installed VG's on 3 different airplanes, all with good/VERY good results but he found placement was pretty critical. From: Bob Granley > Sent: Saturday, September 21, 2013 8:22 PM Subject: RE: Glasair-List: Vortex Generators Evening Dick, I bought a Glasair 1 TDearly model with low hours. I have put some yarn on the wing at intervals. Unfortunately poorly filmed so I need to do it again. What seemed odd and I am not drawing conclusions here yet as I did not get the audio with it to give perspective, but it appeared that the wing root to 3=99 was stalling long before the rest of the wing. Just looking for some owners experienceor suggestions. Thanks! Bob From: owner-glasair-list-server@matronics.com [mailto:owner-glasair-list-server@matronics.com] On Behalf Of Dick Gossen Sent: Saturday, September 21, 2013 5:35 PM Subject: Re: Glasair-List: Vortex Generators Hi Bob, which Glasair model do you have? On Sep 21, 2013, at 2:03 PM, Bob Granley > wrote: Hello All.. Have had much success with these on Yaks and other airshow planes. 1-15% on the low end is huge. I put some on my Glasair at 10% of cord but really did not see much difference in the stall speed. Has anyone else put Vortex generators on and what is your experience please? 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