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The Ryan M-1 was a mail plane produced in the United States in the 1920s, the first original design built by Ryan.[2] It was a conventional gear parasol-wing monoplane with two open cockpits in tandem and fixed, tailskid undercarriage.[3]

M-1 and M-2
Original Ryan M-1 NC2073 in Pacific Air Transport markings in the Historic Aircraft Restoration Museum, Creve Coeur airport, Missouri.
Role	Mailplane Type of aircraft
National origin	United States
Manufacturer	Ryan
Designer	Hawley Bowlus, W A Mankey, John Northrop[1]
First flight	14 February 1926
Status	two airworthy in 2009
Number built	36

Design and development

The follow-on M-2 was substantially the same as the M-1.[2] The prototype M-1 was originally powered by a Hispano-Suiza 8A, but production examples featured a variety of engines in the same general power range, with the Wright J-4B chosen for nine of the sixteen M-1s built,[2] and the prototype later refitted with this engine.[4]

Operational history

A M-1 was flown in the 1926 Ford National Reliability Air Tour.[5]

Pacific Air Transport operated J-4B-powered M-1s and M-2s on their demanding Seattle–San Francisco–Los Angeles mail route,[6] while Hispano-Suiza-powered machines flew with Colorado Airways between Cheyenne and Pueblo[2] and Yukon Airways between Whitehorse and Dawson City.[6]

One M-2 (named Bluebird) was built with a fully enclosed cabin for the pilot and four passengers, foreshadowing Ryan's highly successful Brougham series.[6] The standard M-2, meanwhile, was Charles Lindbergh's first choice for his transatlantic flight.[7] His list of requirements for the aircraft soon made it apparent, however, that rather than modifying an M-2, it would be more effective to build an all-new design along the same general lines, which resulted in the Ryan NYP Spirit of St Louis.[7]

Operators

 United States

• Pacific Air Transport

Aircraft on display

The M-1 prototype was restored to flying condition between 1980 and 1984 and is preserved in the Museum of Flight in Seattle.[3] The seventh aircraft is preserved in airworthy condition in Pacific Air Transport markings at the Historic Aircraft Restoration Museum at Creve Coeur airport, Missouri.[8] A replica of an M-1 using a small number of parts from serial number 11 was built by Andy King in 2001, powered by a Lycoming R-680 and also painted in Pacific Air Transport #7's scheme.[9] Serial number 11 is owned and faces a full restoration by John Norman, who crafted the most accurate reproduction of the Spirit of St. Louis ever built.[10][11] A replica M-1 is exhibited in the San Diego Air & Space Museum.[12]

Specifications (M-1)

Data from "Ryan M-1"

General characteristics

• Crew: One pilot
• Capacity: 1-2 passengers [1]
• Length: 24 ft 0 in (7.30 m)
• Wingspan: 36 ft 0 in (11.00 m)
• Wing area: 228 sq ft (21 m²)
• Empty weight: 1,550 lb (705 kg)
• Gross weight: 2,700 lb (1,230 kg)
• Powerplant: 1 × Hispano-Suiza 8A , 150 hp (110 kW)

Performance

• Maximum speed: 125 mph (200 km/h, 109 kn)
• Range: 400 mi (640 km, 350 nmi)

References

Notes

Bibliography

External links

• Ryan M-1 - Holcomb's Aerodrome
• Dawn Patrol Aviation- Ryan M-1 archive

На других языках

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- [en] Ryan M-1

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[fr] Ryan M-1

Le Ryan M-1 est un avion postal construit aux États-Unis dans les années 1920 par la compagnie Ryan Aeronautical. C'est le premier design original de Ryan. C'est un avion à train classique, monoplan avec une aile parasol, deux places en tandem à cockpit ouvert.

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