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词条 Ross R-6
释义

  1. Design and development

  2. Operational history

  3. Aircraft on display

  4. Specifications (R-6 2-seater / single-seater)

  5. See also

  6. References

name=R-6 image= caption=

}}{{Infobox Aircraft Type

 type=Glider national origin=United States manufacturer=Harland Ross designer=Harland Ross first flight= 1956 introduced= retired= status=Sole example in the National Soaring Museum primary user=Harland Ross more users= Robert Storck produced= 1956 number built=One program cost= unit cost= developed from= variants with their own articles=
}}

The Ross R-6 is a tandem two-seat, high-wing glider that was designed by Harland Ross and first flown in 1956.[1][2]

Design and development

Ross designed the R-6 as a two-seat sailplane with the intention of setting new multi-place records with it. The aircraft was initially designed to use the same {{convert|55|ft|m|1|abbr=on}} span wing as the highly successful Ross-Johnson RJ-5, but with a gross weight of {{convert|1226|lb|kg|0|abbr=on}} as opposed to the RJ-5's {{convert|850|lb|kg|0|abbr=on}} this gave the R-6 one of the highest wing loadings for a glider of its day.[1][2]

The R-6 was constructed with a metal fuselage, which was a departure from Ross's earlier designs. The passenger seat is behind the pilot's seat, aft of the wing spar and has no windows, visibility is provided by a removable plastic overhead dome. The wing features dive brakes. The wingspan was later increased to {{convert|60|ft|m|1|abbr=on}}, lowering the wing loading somewhat, but increasing the high aspect ratio to 28:1. Originally taking off from a dolly and landing on a fixed skid, the R-6 later had a retractable monowheel landing gear installed.[1][2]

Operational history

In one four-day period in 1958 Ross flew the R-6 to set four records. He set new World Record marks for the multi-place glider category in {{convert|100|km|mi|0|abbr=on}}, {{convert|200|km|mi|0|abbr=on}} and {{convert|300|km|mi|0|abbr=on}} speed triangles and also set a US National Record for out-and-return distance of {{convert|234.66|mi|km|2|abbr=on}}. Two of the three World Records exceeded the standing single-place record at the time.[1][2]

In 1959, Ross flew the R-6 solo from Kent, Texas to Farley, New Mexico for his diamond distance and won the Barringer Trophy[3]

The R-6 was later owned by Bob Storck of Waldorf, Maryland who loaned it to the National Soaring Museum, where it is currently listed as in storage.[1][2][4][5]

Aircraft on display

  • National Soaring Museum - the sole example.[4]

Specifications (R-6 2-seater / single-seater)

{{Aircraft specs
|ref=Sailplane directory and Soaring[1][2] The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[6]
|prime units?=imp


|genhide=
|crew=2 / 1
|capacity=
|length m=7.32
|length ft=
|length in=
|length note=
|span m=16.77
|span ft=
|span in=
|span note=
|height m=1.17
|height ft=
|height in=
|height note=at cockpit
|wing area sqm=11.61
|wing area sqft=
|wing area note=
|aspect ratio=24.2:1
|airfoil=NACA 632615
|empty weight kg=293
|empty weight lb=
|empty weight note= - 2-seater, {{convert|273|kg|lb|abbr=on|1|disp=flip}} - single-seater
|gross weight kg=556
|gross weight lb=
|gross weight note= - 2-seater, {{convert|478|kg|lb|abbr=on|1|disp=flip}} - single-seater
|more general=


|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=
|cruise speed kts=
|cruise speed note=
|stall speed kmh=87
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=245
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=

  • Rough air speed max: {{convert|112.5|mph|km/h kn|abbr=on|1}}
  • Aerotow speed: {{convert|112.5|mph|km/h kn|abbr=on|1}}
  • Winch launch speed: {{convert|103.8|mph|km/h kn|abbr=on|1}}

|g limits=+4.4 -2.6
|roll rate=
|glide ratio=40:1 at {{convert|66.5|mph|km/h kn|abbr=on|1}}
|sink rate ms=0.686
|sink rate ftmin=
|sink rate note=at {{convert|59|mph|km/h kn|abbr=on|1}}
|lift to drag=
|wing loading kg/m2=43.5
|wing loading lb/sqft=
|wing loading note= - 2-seater, (7.39 lb/sqft) - single-seater
|more performance=
|avionics=
}}

See also

{{aircontent
|see also=
|related=
|similar aircraft=
|lists=List of gliders
}}

References

1. ^1 2 3 4 5 {{Cite web|url = http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=268|title = R-6 Ross|accessdate = 9 March 2011|last = Activate Media|authorlink = |year = 2006|deadurl = yes|archiveurl = https://web.archive.org/web/20110715225137/http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=268|archivedate = 15 July 2011|df = }}
2. ^1 2 3 4 5 {{cite journal|last=Said|first=Bob|title=1983 Sailplane Directory, Soaring Magazine|journal=Soaring Magazine|date=November 1983|page=60|publisher=Soaring Society of America|location=Hobbs, New Mexico}}
3. ^{{cite journal|last=Ross|first=Harland|title=Cross-Country on the "Marfa Dew Point Front"|journal=Soaring|date=October 1960|volume=24|issue=10|pages=4–7, 11}}
4. ^1 {{cite web|url = http://www.soaringmuseum.org/collection.html|title = Sailplanes in Our Collection|accessdate = 26 February 2011|last = National Soaring Museum|authorlink = |year = 2011|deadurl = yes|archiveurl = https://web.archive.org/web/20110516142717/http://www.soaringmuseum.org/collection.html|archivedate = 16 May 2011|df = }}
5. ^{{Cite web|url = http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=34H|title = Make / Model Inquiry Results|accessdate = 9 March 2011|last = Federal Aviation Administration|authorlink = |date=March 2011}}
6. ^{{cite book|last=Shenstone|first=B.S.|title=The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II|year=1963|publisher=Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue|location=Zurich|pages=234–237|edition=1st|author2=K.G. Wilkinson |language=English, French, German}}
{{Harland Ross aircraft designs}}

2 : United States sailplanes 1950–1959|Harland Ross aircraft
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