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More than 4000g (141oz)
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Rol Klingberg designed and produced his iconic two meter span (78") slope/thermal 'flying wing' glider starting in the late 70s.
An expert aerodynamicist, Klingberg developed the wing airfoils' camber and twist distributions to provide performance and
handling similar to Lee Renaud's Olympic II, so the story goes. Small tip-mounted fixed vertical stabilizers are optional and aren't
required for stable flight. Construction requires use of a wing jig, elements which are shown on the...
This is a non powered Free flight, outdoor glider which is launched from a tow line. Interesting autorudder feature which snaps the rudder to the right once the towline releases. This right rudder causes the glider to fly in circles back to the ground.
A wire passes through the rudder. The right end of the wire is attached to an elastic band that is under slight tension and attached to a fuselage anchor point to cause right deflection of the rudder. The other end (left) of the wire is connected...
Vivace is a very advanced design 100" span thermal glider, either winch-launched or electric-powered, with beautiful
CAD drawings by W. Kleinsasser. The plane uses similar structural and aerodynamic design approaches
as Dr. Mark Drela's 2M Allegro Lite, features all-built up wood construction, and is quite complex with several airfoils 'blended' into its elliptical wing planform. Controls are rudder, elevator, ailerons, and flaps with motor control for the e-power version. ...