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2. Krzysztof Kubryński - Wikipedia

   en.wikipedia.org/wiki/Krzysztof_Kubryński

   Krzysztof Kubryński (born 1954, Poland) is a researcher in aerodynamics.Author of a set of computer programs (KK-AERO) assisting in the design of the aircraft. His methodology of 3D aerodynamic design and his software had been used in the majority of contemporary competition sailplane projects (ASW-27/ASG-29, Ventus-2, DG-1000, ASW-28, Antares, JS-1, Concordia) . [1]

3. Free flight (model aircraft) - Wikipedia

   en.wikipedia.org/wiki/Free_flight_(model_aircraft)

   F1B Model by Stepan Stepanchuk. Free flight is the segment of model aviation involving aircraft with no active external control after launch. Free flight is the original form of hobby aeromodeling, with the competitive objective being to build and launch a self controlling aircraft that will consistently achieve the longest flight duration over multiple competition rounds, within various class ...

4. North Wing Design - Wikipedia

   en.wikipedia.org/wiki/North_Wing_Design

   North Wing Design is an American aircraft manufacturer, specializing in hang gliders, light-sport aircraft and ultralight trikes. The company was based in East Wenatchee, Washington and later moved to Chelan, Washington .

5. List of free electronics circuit simulators - Wikipedia

   en.wikipedia.org/wiki/List_of_free_electronics...

   List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE. The following table is split into two groups based on whether it has a graphical visual interface or not.

6. Maupin Windrose - Wikipedia

   en.wikipedia.org/wiki/Maupin_Windrose

   Maupin designed the Windrose as an easy-to-construct, safe, self-launching, low-cost and aesthetically pleasing aircraft project that could be flown as a pure glider or a powered glider. [1] [2] The design has many innovative features and is of mixed construction using wood, foam and fiberglass. The wing is carved from solid foam and covered in ...

7. Oskbes Aviatika MAI-920 - Wikipedia

   en.wikipedia.org/wiki/Oskbes_Aviatika_MAI-920

   The MAI-920 was developed from the powered Oskbes Aviatika MAI-890 ultralight, which can also be used to aerotow the MAI-920 glider. The MAI-920 has a 90% parts commonality with the MAI-890. The glider design uses a higher aspect ratio monoplane wing in place of the MAI-890's biplane wing. It is intended to be a simple and robust student solo ...

8. Fixed-wing aircraft - Wikipedia

   en.wikipedia.org/wiki/Fixed-wing_aircraft

   A glider is a heavier-than-air craft whose free flight does not require an engine. A sailplane is a fixed-wing glider designed for soaring – gaining height using updrafts of air and to fly for long periods. Gliders are mainly used for recreation but have found use for purposes such as aerodynamics research, warfare and spacecraft recovery.

9. Kalbermatten Woopy - Wikipedia

   en.wikipedia.org/wiki/Kalbermatten_Woopy

   The glider empty weight is 17 kg (37 lb) and it has a glide ratio of 9:1. [1] Powered Woopy Fly A powered version of the Woopy Fly was developed in Siberia and flown with a 150 cc (9.2 cu in) two-stroke engine that gave it an empty weight of 33 kg (73 lb) and a cruise speed of 45 km/h (28 mph) with a 70 cm (28 in) propeller. [1] Woopy Jump