The later model Cessnas had a modified airfoil with a slightly extended and drooped leading edge You can see this, they have a a convex area on the underside of the wing, just aft of the leading edge. (vs. the completely convex profile of the earlier airfoils) Cessna called this the "Camber-Lift" wing (Just what you'd expect from the folks who brought you "land-o-matic" landing gear and "Omni-vision" rear windows. " This improved low speed performance over the original wing. It may be that Roy figures that the late model wing gives him enough low speed performance for his purposes.
I have the same question. The late model Skywagons have a LE camber similar to the Robertson, but it isn't nearly as effective as the Sportsman cuff. The preferred set-up before going with the Wing-X is the Sportsman cuff + Micro VGs, otherwise you don't gain the full benefit of the Wing-X. That's the three I'm going with. Currently only Micro VGs but Sportsman soon.
@@AlaskaTRX I have no idea if this plays into the decision, I'm not sue what ROy's plans are for the plane, but there is a belief that for a floatplane, you get more performance bang for your buck from the wing-x extension than from a leading edge cuff. The thinking is that a leading edge cuff works by allowing a higher angle of attack, which can't be exploited with a floatplane because pitch attitude is limited when taking off and landing. Whereas the wing extension work by increasing wing area, which provides more lift within the same pitch limits.
@@andrewalexander9492 the increased camber of the Sportsman's kit does allow for a higher AOA before stall, but other advantages are a higher L/D ratio, decreased wing loading due to the increase in wing area, and coupled with the VGs these effects are amplified. Where the Sportsman's kit helps with float flying is allowing steeper approaches and climb-outs, which really helps for tight lakes, as well as improvements in getting on step faster. The Wing-X definitely help a lot on floats due to the added lift from the extended wing and the reduction of wing loading. They are even more effective with the cuff and VGs. Like I said, all three mods together really make this wing so much better. Looking forward to having all three someday when I have a larger hangar that allows the Wing-X!
@@AlaskaTRX Yeah, yeah, I've heard all the arguments why this is wrong. That's why I said " there is a belief" Not "I believe", to avoid being deluged by someone giving me all the reasons that particular belief is wrong. It's not necessarily my belief and I've yet to see convincing empirical data from either side on which is true. I was commenting on the reasons why someone might make those particular choices, based on what they believed, not make a declaration that they were correct. Me, I'm perfectly content to let others modify their aircraft as they choose, even if those choices might be different than the choices I would make. I've never understood why people get so invested is why other peopl are doing with their own possessions and their own money.
Thank you for bringing these projects to ideo.
Beautiful looking build. I am looking forward to seeing the progress. Cheers.
Hi Roy thank you for the update Luv your episode and i wish you and all your family and staff a merry xmass from Australia
Thanks for these videos
Did you have the flap handle thumb knob custom made? It looks great.
Where's the news on the build?
Why did you decide to leave the wing leading edge stock? I would think lowering the stall speed would be benifical.
The later model Cessnas had a modified airfoil with a slightly extended and drooped leading edge You can see this, they have a a convex area on the underside of the wing, just aft of the leading edge. (vs. the completely convex profile of the earlier airfoils) Cessna called this the "Camber-Lift" wing (Just what you'd expect from the folks who brought you "land-o-matic" landing gear and "Omni-vision" rear windows. " This improved low speed performance over the original wing. It may be that Roy figures that the late model wing gives him enough low speed performance for his purposes.
I have the same question. The late model Skywagons have a LE camber similar to the Robertson, but it isn't nearly as effective as the Sportsman cuff. The preferred set-up before going with the Wing-X is the Sportsman cuff + Micro VGs, otherwise you don't gain the full benefit of the Wing-X. That's the three I'm going with. Currently only Micro VGs but Sportsman soon.
@@AlaskaTRX I have no idea if this plays into the decision, I'm not sue what ROy's plans are for the plane, but there is a belief that for a floatplane, you get more performance bang for your buck from the wing-x extension than from a leading edge cuff. The thinking is that a leading edge cuff works by allowing a higher angle of attack, which can't be exploited with a floatplane because pitch attitude is limited when taking off and landing. Whereas the wing extension work by increasing wing area, which provides more lift within the same pitch limits.
@@andrewalexander9492 the increased camber of the Sportsman's kit does allow for a higher AOA before stall, but other advantages are a higher L/D ratio, decreased wing loading due to the increase in wing area, and coupled with the VGs these effects are amplified. Where the Sportsman's kit helps with float flying is allowing steeper approaches and climb-outs, which really helps for tight lakes, as well as improvements in getting on step faster. The Wing-X definitely help a lot on floats due to the added lift from the extended wing and the reduction of wing loading. They are even more effective with the cuff and VGs. Like I said, all three mods together really make this wing so much better. Looking forward to having all three someday when I have a larger hangar that allows the Wing-X!
@@AlaskaTRX Yeah, yeah, I've heard all the arguments why this is wrong. That's why I said " there is a belief" Not "I believe", to avoid being deluged by someone giving me all the reasons that particular belief is wrong. It's not necessarily my belief and I've yet to see convincing empirical data from either side on which is true. I was commenting on the reasons why someone might make those particular choices, based on what they believed, not make a declaration that they were correct. Me, I'm perfectly content to let others modify their aircraft as they choose, even if those choices might be different than the choices I would make. I've never understood why people get so invested is why other peopl are doing with their own possessions and their own money.