Jon Bown Posted July 24, 2020 Share Posted July 24, 2020 Hi can some one tell me what the MAC is on a 2005 vg with the new leading edge not to slats thanks trying to figure out C of G Link to comment Share on other sites More sharing options...
eightyknots Posted July 25, 2020 Share Posted July 25, 2020 Hi Jon, There is a place where there is a fair bit of this information, posted by John Gilpin (who is Forum member JG3). Have a look at this Australian site: www.stolspeed.com . Link to comment Share on other sites More sharing options...
eightyknots Posted July 25, 2020 Share Posted July 25, 2020 Hi Jon, There is a place where there is a fair bit of this information, posted by John Gilpin (who is Forum member JG3). Have a look at this Australian site: www.stolspeed.com . I hope that this website will be useful for you. 2 Link to comment Share on other sites More sharing options...
Jon Bown Posted August 3, 2020 Author Share Posted August 3, 2020 Next Question, My leading edge has sets of 3 triangle set holes all along the top. Presume these are for the VGs. Savannah send me a set of VGs that have 2 lugs hope same hole spacing as holes in my wing, need to check tomorrow. Does any one have the page in there build manuel that shows the orientation of the VGs. please email to me or send photo even of the VGs on the wing my help. Thanks [email protected] Link to comment Share on other sites More sharing options...
IBob Posted August 3, 2020 Share Posted August 3, 2020 As suggested earlier, you really are best to contact JG at Stolspeed, who is the authority on all this. Link to comment Share on other sites More sharing options...
Jon Bown Posted August 3, 2020 Author Share Posted August 3, 2020 As suggested earlier, you really are best to contact JG at Stolspeed, who is the authority on all this. Thanks will do, I looked at there web page and lots of good info, they use there own VGs that are different from what I.C.P. supply and they look more robust. Link to comment Share on other sites More sharing options...
IBob Posted August 3, 2020 Share Posted August 3, 2020 Sure, but I believe JG would still be happy to discuss this with you. Link to comment Share on other sites More sharing options...
eightyknots Posted August 3, 2020 Share Posted August 3, 2020 Thanks will do, I looked at there web page and lots of good info, they use there own VGs that are different from what I.C.P. supply and they look more robust. I just googled and saw a picture with the ICP vortex generators fitted. Perhaps Next Question, My leading edge has sets of 3 triangle set holes all along the top. Presume these are for the VGs. Savannah send me a set of VGs that have 2 lugs hope same hole spacing as holes in my wing, need to check tomorrow. Does any one have the page in there build manuel that shows the orientation of the VGs. please email to me or send photo even of the VGs on the wing my help. Thanks [email protected] I just googled and saw a picture with the ICP vortex generators fitted. Perhaps this will help with you with your orientation question? Link to comment Share on other sites More sharing options...
JG3 Posted August 4, 2020 Share Posted August 4, 2020 JG chipping in here...... Those ICP VGs should just click into the holes provided, in that paired pattern as you see in the photo. If you didn't have ICP VGs then the Stolspeed VGs will just stick on over those holes in the same pattern. ICP purchased their very first set of VGs from me at Narromine. At the time I was importing the VGs from the USA, and ICP copied that style of VG. I never liked that style with the sharp point and the crude base, so I later designed my own. ICP chose to go with the paired pattern that some other suppliers used. I tested both that paired pattern and the alternating angles pattern that I now use. I preferred the alternating because I found that the paired pattern caused the vortexes formed to interfere with each other and tend to rise from the airfoil, while the single VGs in alternating pattern gave tighter vortexes that tend to stay tight to the airfoil where they should be for best effect and least drag. Either method will work on the Savannah, which already has a very forgiving airfoil. 1 Link to comment Share on other sites More sharing options...
IBob Posted August 4, 2020 Share Posted August 4, 2020 Suggest you post a picture of the hole pattern in your wing, Jon Brown. The ICP vortex generators have 2 locating lugs each, the holes are in a pattern of 4, which gives the paired VG pattern, as on the blue wing pictured above. If you have patterns of 3 holes, as you previously stated, it sounds like they were intended for a different VG: you may have to get suggestions/advice here on how to proceed. FWIW I have also used Stolspeed VGs, they are robust and do not require locating holes. They are supplied with a simple pattern/jig that sets the spacing and angle. 1 Link to comment Share on other sites More sharing options...
Jon Bown Posted August 9, 2020 Author Share Posted August 9, 2020 Suggest you post a picture of the hole pattern in your wing, Jon Brown. The ICP vortex generators have 2 locating lugs each, the holes are in a pattern of 4, which gives the paired VG pattern, as on the blue wing pictured above. If you have patterns of 3 holes, as you previously stated, it sounds like they were intended for a different VG: you may have to get suggestions/advice here on how to proceed. FWIW I have also used Stolspeed VGs, they are robust and do not require locating holes. They are supplied with a simple pattern/jig that sets the spacing and angle. Hi Guys Dur when i actually went and had a look at the wing instead of relying on my memory. Yes it has 4 holes in the pattern so yes very obvious how they fit. PS thanks for all the great info and Photo. Link to comment Share on other sites More sharing options...
IBob Posted August 9, 2020 Share Posted August 9, 2020 Right, so you get superglue. I found a small plastic bottle of it that has an integral brush, just like a nail varnish bottle. And I found that a really easy way to paint the right amount onto the base of the VGs....much easier than squeezing it out of a nozzle. 1 Link to comment Share on other sites More sharing options...
rankamateur Posted August 22, 2020 Share Posted August 22, 2020 much easier than squeezing it out of a nozzle. The Loctite superglue GEL is better because it fills the spaces under the base and they don't peel off so easily. The nozzle is not hard to use with the Gel. 1 Link to comment Share on other sites More sharing options...
Jon Bown Posted August 22, 2020 Author Share Posted August 22, 2020 The Loctite superglue GEL is better because it fills the spaces under the base and they don't peel off so easily. The nozzle is not hard to use with the Gel. Thanks used that all good VGs on wing now just waiting for paper work to go thru RAA Link to comment Share on other sites More sharing options...
RFguy Posted August 22, 2020 Share Posted August 22, 2020 For anyone interested in VGs, ( I am !) here is an excellent treatment, lots of aero sim. the meat starts at 6 or 7 minutes. and they endorse stolspeed VGs 1 Link to comment Share on other sites More sharing options...
eightyknots Posted August 23, 2020 Share Posted August 23, 2020 Thanks used that all good VGs on wing now just waiting for paper work to go thru RAA That's good to hear Jon. Link to comment Share on other sites More sharing options...
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