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词条 Martin M-1
释义

  1. Design and development

  2. Operational history

  3. Specifications (M-1)

  4. See also

  5. References

name=M-1 image=Martin M-1 N21733.jpg caption=

}}{{Infobox Aircraft Type

type=Glider national origin=United States manufacturer= designer=Volmer Jensen first flight=1939 introduced= retired= status=Production completed primary user=Jim Martin more users= produced= 1939 number built=1 program cost= unit cost= developed from= variants with their own articles=
}}

The Martin M-1 was an American Gull winged, single-seat glider that was designed and built by Volmer Jensen in 1939.[1][2]

Design and development

Jim Martin contracted Jensen to design and built him a glider for contest flying just before the Second World War. Jensen completed the aircraft in 1939.[1]

The aircraft was constructed with a wooden structure and covered in doped aircraft fabric covering. The cantilever gull-style wing employed a NACA 4400 series airfoil. The tail was a conventional low-tail design and featured strut-bracing. The M-1 was registered as an Experimental - Amateur-built aircraft and was not type certified.[1][2]

Operational history

Martin flew the aircraft in a number of US Nationals, as did a later owner of the M-1, Emil Lehecka. While Lehecka owned it the aircraft picked up the nickname of the Whatsit. By the 1970s the aircraft was owned by Francis Kalinowsky and was based at the Circle X airport in Florida. At that time it was reportedly in good repair and was well maintained.[1]

The aircraft was removed from the Federal Aviation Administration registry and its whereabouts are unknown.[2]

Specifications (M-1)

{{Aircraft specs
|ref=Soaring[1]
|prime units?=imp


|genhide=
|crew=one
|capacity=
|length m=
|length ft=
|length in=
|length note=
|span m=
|span ft=48
|span in=0
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=180
|wing area note=
|aspect ratio=12.8:1
|airfoil=NACA 4400 series
|empty weight kg=
|empty weight lb=438
|empty weight note=
|gross weight kg=
|gross weight lb=631
|gross weight note=
|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=
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|g limits=
|roll rate=
|glide ratio=28 at {{convert|50|mph|km/h|0|abbr=on}}
|sink rate ms=
|sink rate ftmin=132
|sink rate note= at {{convert|40|mph|km/h|0|abbr=on}}
|lift to drag=
|wing loading kg/m2
|wing loading lb/sqft=
|wing loading note=3.5
|more performance=
|avionics=
}}

See also

{{aircontent
|see also=
|related=
|similar aircraft=
  • Matteson M-1 - glider with the same designation

|lists=
  • List of gliders

}}

References

1. ^Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 48. Soaring Society of America November 1983. USPS 499-920
2. ^{{Cite web|url = http://registry.faa.gov/aircraftinquiry/AcftRef_Results.aspx?Mfrtxt=MARTIN&Modeltxt=M-1&PageNo=1|title = Make / Model Inquiry Results|accessdate = 27 May 2011|last = Federal Aviation Administration|authorlink = |date=May 2011}}
{{Volmer Jensen aircraft}}

5 : United States sailplanes 1930–1939|Homebuilt aircraft|Volmer aircraft|High-wing aircraft|Gull-wing aircraft

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