Overview of the technology and benefits of Vortex Generators on Piper Super Cubs and Single Engine Cessnas. The featured VGs were developed by Boundary Layer Research (BLR) and are sold by CubCrafters. www.cubcrafters...
The roughness of the frost causes the boundary layer to slow, stagnate and separate earlier than it would otherwise while the VG's cause a spinning cone of air to move back across the wing which re-energizes the boundary layer. I hope that makes sense. Its really neat that on many airplanes VG's don't lower top speed (some do have a slight decrease in top end speed) because the extra drag that the VG's themselves are generating is offset by the the reduced drag that the overall wing has due to the boundary layer staying energized and close to the wing. That's why golf balls have dimples, to decrease the low pressure wake behind the ball and decrease overall drag and make the ball go further.
Horizon Hobby has them for the Carbon Cub S+.. www.horizonhobby.com/airplanes/park-flyers/carbon-cub-s-13m-rtf-p-hbz3200 look under parts & accessory's
Robertson is great, but did not invent the vortex generator. Robertson was simply one of the first persons to say "hey, why isn't anyone trying to use VG's on small G.A. planes?" and then have the guts to go out and start experimenting and flight testing them on Barons and Cessna's
