Martin M-1
{{Short description|American glider}}
{{Use mdy dates|date=January 2022}}
{{Use American English|date=January 2022}}
| {{Infobox aircraft begin
| 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 | 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.Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 48. Soaring Society of America November 1983. USPS 499-920{{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}}
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.
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.
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.
The aircraft was removed from the Federal Aviation Administration registry and its whereabouts are unknown.
Specifications (M-1)
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|wing area sqft=180
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|aspect ratio=12.8:1
|airfoil=NACA 4400 series
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|empty weight lb=438
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|gross weight lb=631
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|glide ratio=28 at {{convert|50|mph|km/h|0|abbr=on}}
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|sink rate ftmin=132
|sink rate note= at {{convert|40|mph|km/h|0|abbr=on}}
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|wing loading note=3.5
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See also
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- Matteson M-1 - glider with the same designation
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