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The Schleicher ASW 17 is a single-seat Open Class sailplane that was built by the German manufacturer Alexander Schleicher GmbH & Co and first flew in 1971. It replaced the ASW 12, and was replaced in 1981 by the ASW 22.
The Schleicher ASK 23 is a single-seat Club Class sailplane that was built by the German manufacturer Alexander Schleicher GmbH & Co.
The ICA IS-28 is a two-seat sailplane produced in Romania in the 1970s. An all-metal aircraft of conventional design with a T-tail, it was originally produced with 15-metre wings, but in 1973, production shifted to the IS-28B with 17-metre wings and numerous aerodynamic refinements. These included a smaller tail with decreased dihedral, decreased dihedral on the wings, and redesigned fuselage contours. This version first flew on 26 April 1973 and was subsequently produced in versions with flaps (IS-28B2) and without (IS-28B1). Around 100 had been built by the early 1980s, with a substantial number sold for export. On April 7, 1979, Tom Knauff and R. Tawse set a world record with the IS-28 B2 glider, covering a distance of 829 kilometres on a predetermined out-and-return course from the Ridge Soaring Gliderport in Julian, Pennsylvania.
The ICA IS-32 is an open class high-performance metal two-seat sailplane produced in Romania in the 1970s. A refinement of the IS-28B, it shared most of that aircraft's fuselage, mated to new wings and empennage. This new wing had a span of 20 metres, featuring interconnected ailerons and flaps, Schempp-Hirth-type airbrakes. It had no provision for water ballast. The monowheel undercarriage differed from the IS-28 in being fully retractable.
The Schweizer SGS 1-34 is a United States Standard Class, single-seat, high-wing glider built by Schweizer Aircraft of Elmira, New York.
The Glasflügel 604 is a high-wing, T-tailed, single seat, FAI Open Class glider that was designed and produced in West Germany by Glasflügel starting in 1970.
The Sigma is an experimental glider developed in Britain from 1966 by a team led by Nicholas Goodhart. After disappointing performance during flight testing the Sigma was passed on to a Canadian group which carried out modifications, making the Sigma more competitive.
The Mü-27 is a research glider aircraft that designed and built in Germany in 1979. Only one example was constructed.
The Laister LP-15 Nugget is an American single-seat, high-wing glider designed by Jack and Bill Laister for the FAI Standard Class. It first flew in 1971.
The Bikle T-6 is an American, mid-wing, single seat, glider designed by Paul Bikle and based upon the design of the Schreder HP-14. Even though only one T-6 was built it is noted as the most tested and studied glider with complete data published. It has been used extensively as a comparative reference glider for evaluating other designs during in-flight comparisons.
The Schreder HP-17 was an American mid-wing, V tailed, single seat, experimental glider designed by Richard Schreder to test a new airfoil section.
The Oldershaw O-3 is an American high-wing, single seat, V-tailed glider that was designed by Vernon Oldershaw. Two examples were constructed as gliders and then both were later converted to motor gliders.
The FFA Diamant is a family of Swiss high-wing, T-tailed, single-seat, FAI Standard Class and FAI Open Class gliders that was designed by engineering students under supervision of Professor Rauscher at the ETH Zurich and manufactured by Flug- und Fahrzeugwerke Altenrhein AG (FFA) of Altenrhein, Switzerland.
The Whigham GW-5 is an American mid-wing, single seat, FAI Standard Class glider that was designed and constructed by Gene Whigham, a retired flight test engineer for Convair.
The Glasflügel 205 Club Libelle is a high wing, T-tailed, single seat glider that was designed and produced in West Germany by Glasflügel for club and rental use.
The Lehtovaara PIK-16 Vasama is a Finnish mid-wing, single-seat, FAI Standard Class glider that was designed by Tuomo Tervo, Jorma Jalkanen and Kurt Hedstrom, who were students at the Polyteknikkojen Ilmailukerho (PIK) and produced by Lehtovaara.
The Farrar LSG-1 Bird Flight Machine is an American, high-wing, V-tailed, single-seat, experimental research glider that was designed and built by Demetrius F. Farrar Jr. in 1969 for exploring aspects of bird flight.
The Rensselaer RP-3 is an American mid-wing, T-tailed single-seat, glider that was designed by Brian E. Thompson and produced by the Rensselaer Polytechnic Institute of Troy, New York. It first flew in 1998.
The Akaflieg Darmstadt D-40 is an experimental variable geometry single seat sailplane, fitted with almost full span, camber changing flaps for optimum aerodynamics in weak thermals and integrated into the wing so as to minimise flap tip drag. One flew successfully but the D-40, like other variable geometry sailplanes, was not commercialised.
The Akaflieg Braunschweig SB-11 is an experimental, single seat, variable geometry sailplane designed by aeronautical students in Germany. It won the 15 m span class at the World Gliding Championships of 1978 but its advances over the best, more conventional, opposition were not sufficient to lead to widespread imitation.
References
- 1 2 3 4 5 6 Activate Media (2006). "Gemini Marsden". Archived from the original on 30 April 2002. Retrieved 15 August 2011.
- 1 2 3 4 Armstrong, Ken (August 2011). "Capt. Ken's comments - July". Canadian Owners and Pilots Association . Archived from the original on 9 September 2012. Retrieved 15 August 2011.
- ↑ Lednicer, David (2010). "The Incomplete Guide to Airfoil Usage". Archived from the original on 19 July 2011. Retrieved 1 August 2011.
- ↑ "FAA Registry N Number Query Results - N77ZV". Archived from the original on 17 September 2012. Retrieved 23 August 2011.
- ↑ "FAA Registry N Number Query Results - N77ZV" . Retrieved 12 February 2021.
- ↑ "July 2 OLC". Archived from the original on 13 February 2021. Retrieved 23 August 2011.
- ↑ "The Lewin B. Barringer Memorial Trophy". Archived from the original on 15 March 2012. Retrieved 9 May 2012.