| 词条 | Schleicher K7 | |||||||||||||||||||
| 释义 |
The Schleicher K7 Rhönadler, aka Ka-7 or K-7, is a West German high-wing, two-seat, glider that was designed by Rudolf Kaiser and produced by Alexander Schleicher GmbH & Co.[1][2] Often referred to as the Ka-7 or K-7, the US Federal Aviation Administration type certificate officially designates it as the K7.[1][2][3] Design and developmentThe K7 was intended as a two-place trainer with good performance, a rare combination in trainers of its time.[1][2] The K7 is constructed with a welded steel tube fuselage, covered in doped aircraft fabric covering. The wing is a wooden structure with a doped fabric covering and employs a Goettingen 533 (16%) airfoil at the wing root, transitioning to a Goettingen 533 (14%) section at the wing tip. The wing features powerful dive brakes. The landing gear is a fixed monowheel. The earlier Ka-2 variant has a plywood monocoque fuselage.[1][2][3][4] After 550 had been built, the K7 was superseded in production by the Schleicher ASK 13.[1][2] The K7 can be converted into a K7/13 with a conversion kit to lower the wing to the mid-wing position and installation of a one-piece canopy, rendering the aircraft similar to the ASK-13.[1] Operational historyA K7 was flown to a new world multi-place glider speed record for flight around a {{convert|500|km|mi|0|abbr=on}} triangle of {{convert|84|km/h|mph|0|abbr=on}} in 1964 in South Africa.[1][2] Variants
Early version with a plywood monocoque fuselage[1][3]
Main production version with a steel tube fuselage.[1][2][3]
K7 converted to a mid-wing arrangement, plus a single piece canopy, to resemble an AS-K 13[1] Specifications (K7){{Aircraft specs|ref=Sailplane Directory, Soaring and FAA Type Certificate 7g3,[1][2][3] The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde[5] |prime units?=met
|g limits=+4 -2 |glide ratio=26:1 at ~{{convert|83|km/h|mph|0|abbr=on}} |sink rate ms=0.70 |sink rate note= at {{convert|67|km/h|mph|0|abbr=on}} |wing loading kg/m2=27.34 }} See also{{aircontent|see also= |related= |similar aircraft=
|lists=
}} Notes1. ^1 2 3 4 5 6 7 8 9 10 {{Cite web|url = http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=182|title = Ka-7 Schleicher|accessdate = 23 July 2011|last = Activate Media|authorlink = |year = 2006|deadurl = yes|archiveurl = https://web.archive.org/web/20111117093614/http://www.sailplanedirectory.com/PlaneDetails.cfm?planeID=182|archivedate = 17 November 2011|df = }} 2. ^1 2 3 4 5 6 7 {{cite journal|last=Said|first=Bob|title=1983 Sailplane Directory|journal=Soaring Magazine|date=November 1983|id=USPS 499-920|publisher=Soaring Society of America}} 3. ^1 2 3 4 {{Cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/53f76bd8653231df8625748e0055efc5/$FILE/7g3.PDF |title = Type Certificate Data Sheet No. 7g3 |accessdate = 23 July 2011|last = Federal Aviation Administration|authorlink = |date=February 1961}} 4. ^{{Cite web|url = http://www.ae.illinois.edu/m-selig/ads/aircraft.html|title = The Incomplete Guide to Airfoil Usage |accessdate = 23 July 2011|last = Lednicer |first = David |authorlink = |year = 2010}} 5. ^{{cite book|last=Shenstone|first=B.S.|title=The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs dans Le Monde|year=1958|publisher=Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue|location=Zurich|pages=9–13|edition=1st |author2=K.G. Wilkinson |author3=Peter Brooks|language=English, French, German}} References{{refbegin}}
External links{{Commons category-inline|Schleicher K 7}}{{Schleicher}} 5 : German sailplanes 1960–1969|Schleicher aircraft|High-wing aircraft|Aircraft first flown in 1960|Glider aircraft |
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