Group Genesis Genesis 1
The Genesis I is a standard class glider from Marion, Ohio-based Group Genesis and intended for the homebuilt market.
Chief designer Jim Marske was given a clean sheet and chose a flying wing concept, but with conventional pilot pod and tall vertical stabiliser, topped by a small elevator, not tailplane. Aerodynamicist John Roncz, whose previous work has included the world-circling Voyager, did extensive work with computer modelling to come up with the final shape. The wing is a stable aerofoil with several changes in section and forward sweep across the span, and initial pilot reports (four different pilots flew the prototype within its first dozen flights) indicate high stability and control coordination.
The small horizontal surface found at the top of the Genesis' fin is used only to control the glider's angle of incidence. The wing has reverse sweep in order to put the variable masses close to the center of gravity, and incorporates water ballast tanks.
The prototype flew for the first time in 1993, and various improvements were applied, resulting in the production version, Genesis 2.
Specifications are for the prototype Genesis 1 as designed : on completion, empty weight was substantially greater.
Wing span: 15m / 49.2ft
Wing area: 11.19sq.m / 120.5sq.ft
Empty Weight: 227kg / 500lb
Payload: 298kg / 657lb
Gross Weight: 525kg / 1157lb
Wing Load: 46.91kg/sq.m / 9.6lb/sq.ft
Water Ballast: 0
Aspect ratio: 20.2
Speed max: 180 mph.
Cruise: 140 mph.
Stall: 40 mph.
L/DMax: 43 120 kph / 65 kt / 75 mph
MinSink: 0.71 m/s / 53 kt / 61 mph
Airfoil: Roncz G-74S
Landing gear: single wheel.