ORIGINAL: erbroens
Just recovered a amazing article in a old magazine.. I know that some people today achieve extreme speeds on slope gliders (150+ mph on the gps) .. . but this glider was measured in a dive at optimum conditions using photocells at 242 mph more than 20 years ago!
http://www.favonius.com/soaring/speed/speed.htm
Best regards, Enrique
Yup. With no engine at all. So it ain't all about horsepower, it's about aerodynamics.