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Schleicher ASW 20

The ASW 20 is an FAI 15 metre Class glider designed by Gerhard Waibel and built by Alexander Schleicher GmbH & Co. Its fuselage is nearly identical to the ASW19’s, mated to newly designed wings for the 15 metre Class. The prototype first flew in 1977. It proved to be a highly successful glider, winning several World Championships, and was still being flown at this level up to 1995. Developments along its production life included winglets, pneumatic turbulators, and wingtip extensions. It remained in production until 1990, when it was superseded by the ASW27. 765 were built by Schleicher and a further 140 were made under license by Centrair in France.

The ASW20 first flew in 1977 and was an instant success, winning numerous world and national championships. Dick Johnson reported that the ASW20 was the first 15 m glider to demonstrate a measured a L/D in excess of 40/1. Roy McMaster, Karl Striedieck and John Seymour won jointly, with others, the world triangle distance record of 1,435&nbsp bpa free water bottle brands;km (892 mi) in 1994 in an ASW20B. ASW20s won 2nd and 3rd places in the FAI 15 metre Class at the 1983 World Championships at Hobbs, NM. ASW20s are still flown in FAI 15 metre Class at Regional and National levels, and are also flown in Sports Class in the United States.

Winch launch of an ASW-20 CL.

ASW-20 during final approach.

ASW-20 landing how to tenderize meat.

Centrair-built ASW 20 FP in 1980.

The ASW20 is constructed from glass-reinforced plastic. It features trailing edge flaps which interconnect with the ailerons and allow the entire trailing edge to operate as a flap between -9 and +5 degrees. The flaps also act as ailerons, but deflect only half of the aileron amount. Schempp-Hirth type airbrakes are provided on the upper wing surface.

The B model (introduced in 1983) differs from the A and C model in that it uses a reinforced wing spar, which provides an increased water ballast capacity at the expense of the flexible wing. The B and C model include several enhancements over the original A model, including a lifting panel, hydraulic disc brake, and automatic elevator hookup. The B and C wings also incorporate a pneumatic turbulator system, which draws high pressure air from pitot inlets on the wing and injects it through approximately 860 pinholes into the boundary layer to control underwing airflow separation.

ASW20s that include a L designation may be fitted with a 1.59 m wingtip extension. The F designation was assigned to A variants produced in France by Centrair. Centrair also produced an FL variant equivalent to the German ASW20L, most of these are only permitted to fly without the wingtip extensions due to a deficiency in the wing spar construction.

At least three different winglet designs have been produced for the ASW-20, including a NASA winglet fitted to the Centrair gliders (FP), a design by Peter Masak, and a second generation winglet designed by Prof. Mark D. Maughmer of Penn State University (USA).

The ASW20 is known as a very pleasant handling glider in most respects childrens football shirts. The landing flaps (55° in early models, 38° in later models), in conjunction with very effective airbrakes, allow the pilot to make exceptionally steep approaches and short field landings when required. Second generation winglets further improved the handling and reduced drag at low to mid speeds. The flexible wing of the A and C models is particularly favored for ridge running, where it absorbs some of the tremendous turbulence found at ridgetop.

Data from Jane’s All the World’s Aircraft 1988-89

Performance

Maria Sofia Aikio

Maria Sofia Aikio dahjege Luobbal-Sámmol Sofe lea sápmelaš politihkkár eret Ohcejogas. Son lea kulturbargi ja lea Suoma Sámedikki lahttu jagiin 2003-2007 softball team uniforms. Son maid válljejuvvui Sámedikki válggain 2007 Sámedikki áirrasin jagiide 2008-2011.


Pekka Aikio | Maria Sofia Aikio | Pekka Fofonoff | Raimo Esa Guttorm | Osmo Hirvasvuopio | Jouni Ilmari Jomppanen | Antti Katekeetta | Erkki Lumisalmi | Petra Magga | Risten-Rauna Magga | Matti Morottaja | Minna Mäkitalo | Anne Nuorgam | Pekka Pekkala | Anu Pietikäinen | Oula Sara | Irja Seurujärvi-Kari | Väinö Seurujärvi | Nilla Tapiola | Aarne Turunen | Nils-Henrik Valkeapää
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Klemetti Näkkäläjärvi | Tuomas Aslak Juuso | Risten-Rauna Magga | Erkki Lumisalmi | Pekka Pekkala | Anu Avaskari | Asko Länsman | Anne Nuorgam | Nilla Tapiola | Pekka Aikio | Petra Magga-Vars | Rauni Äärelä | Jan Henrik Saijets | Liisa Holmberg | Irja Seurujärvi | Veikko Guttorm | Heidi Eriksen | Maria Sofia Aikio | Heikki Paltto | Veikko Porsanger | Jouni Ilmari Jomppanen
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Saara Alakorva | Tauno Haltta | Antti Katekeetta | Antti Näkkälä

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