Forum | Classifieds | Lost & Found | CGKA | Industry | Sensors | Forecast | Spots | Seattle | Decals | RSS | Facebook Events | Photos | Search | Register | Profile | Log in to check your messages | Log in  Why does water tension of skim lessen in shallow water?          Northwest Kiteboarding -> Gorge / Portland / Oregon Coast previous topic :: next topic   Author Message 4Stringer/KipWinger Since 27 Apr 2005 541 Posts Hood River Addicted Tue Apr 22, 14 7:36 am    Why does water tension of skim lessen in shallow water? As I was pulling my 5 year old son, it became clear to me that in very shallow water (2 inches or less) the water tension on the board is drastically reduced. Why does a skimboard's friction reduce measurably in very shallow water? Is the board forced to be completely flat, creating less drag or does it have something to do with a water-cushioning effect somewhat like upwelling water that bounces off the bottom of the river and then up toward the bottom of the board? _________________ revitalized by muthu-nachu beech Since 21 Aug 2010 483 Posts Longview, WA Obsessed Tue Apr 22, 14 8:36 am     ahhhh so! maybe like "ground effect" in airplanes. pilots will need to chime in. _________________ Haole Gman Since 11 Feb 2006 4907 Posts Portland Unstrapped Tue Apr 22, 14 10:06 am     http://extremesportsphysics.blogspot.com/2007/09/skimming-physics.html?m=1 You knew this _________________ Go Deep! https://m.youtube.com/watch?v=eu2pBpQolKE        Northwest Kiteboarding -> Gorge / Portland / Oregon Coast All times are GMT - 8 Hours Page 1 of 1   Jump to: Select a forum Northwest Kiteboarding Discussion Forum----------------Gorge / Portland / Oregon CoastFor SaleLost & FoundIndustry SoapboxCGKA  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You can attach files in this forum You can download files in this forum