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A sink rate of approximately 1.0 m/s is the most that a practical hang glider or paraglider could have before it would limit the occasions that a climb was possible to only when there was strongly rising air. Gliders (sailplanes) have minimum sink rates of between 0.4 and 0.6 m/s depending on the class. Aircraft such as airliners may have a ...
For the derivation of the airspeed selector one minimizes the time for the sailplane to reach a thermal and regain the original height." [ 14 ] According to Bob Wander, "The principal advantage of making a rotatable speed-to-fly ring for your total energy variometer is that cross-country speeds in gliding can be optimized when we factor the ...
A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). [ 1 ] [ 2 ] This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude.
For an aerofoil wing or powered aircraft, the L/D is specified when in straight and level flight. For a glider it determines the glide ratio, of distance travelled against loss of height. The term is calculated for any particular airspeed by measuring the lift generated, then dividing by the drag at that speed.
The Monnett Monerai is a sailplane that was developed in the United States in the late 1970s for homebuilding. It is a conventional pod-and-boom design with a V-tail and a mid-mounted cantilever wing of constant chord. The kit assembles in approximately 600 hours. It has bonded wing skins and incorporates 90° flaps for glide path control. The ...
The information that glider pilots really need to soar is the total change in energy experienced by the glider, including both altitude and speed. An uncompensated variometer will simply indicate vertical speed of the glider, giving rise to the possibility of a "stick thermal," i.e., a change in altitude caused by stick input only. If a pilot ...
Perlan Project Inc. is a not-for-profit aeronautical exploration and atmospheric science research organization that utilizes sailplanes (gliders) designed to fly at extremely high altitudes. On 29 August 2006 Steve Fossett and Einar Enevoldson , the pilots of Perlan Mission I, broke the existing altitude record for gliders by soaring up to ...
The Schweizer SGS 1-34 is a United States Standard Class, single-seat, high-wing glider built by Schweizer Aircraft of Elmira, New York. [ 1 ] The 1-34 was designed over a number of years in the mid-1960s and first flew in 1969.