Martin S

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The Martin S was a two-seat observation seaplane produced in the United States in 1915.^[2] Designed along the same general lines as the preceding Model T,^[3] it was a largely conventional two-bay biplane with unstaggered wings of equal span. The fuselage was not directly attached to the lower wings, but was carried on struts in the interplane gap. The undercarriage consisted of a single large pontoon below the fuselage and outrigger floats near the wingtips.^[2] The Model S was 23-year-old Donald Douglas's first and only design for the Martin company, and it set three world altitude records and a flight duration record that stood for three years.^[4]

Six, possibly fourteen, of these aircraft were operated by the Aviation Section, U.S. Signal Corps,^[1] and another two by the United States Navy.^[2]^[3] All of the Army aircraft, S.C. 56-59 and 94-95, were assigned to the first U.S. aviation unit based overseas, the 1st Company, 2d Aero Squadron at Fort Mills, Corregidor, in March and April 1916, where they used a radio transmitter with a range of 29 miles to adjust battery fire for the Coast Artillery.^[5]

Operators

United States

Specifications

Data from aerofiles.com

General characteristics

Crew: Two, pilot and observer
Length: 29 ft 7 in (9.02 m)
Wingspan: 46 ft 5 in (14.15 m)
Powerplant: 1 × Hall-Scott A-5, 125 hp (93 kW)

Performance

Maximum speed: 85 mph (136 km/h)

References

Notes

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↑ 1.0 1.1 Aero Files states six, and Baugher corroborates their serial numbers (S.C. 56-59, 94-95), while Taylor states fourteen. No additional serials for Martin S are given in Baugher. Aero Files does not list any aircraft for the Navy.
↑ 2.0 2.1 2.2 Taylor 1989, 635
↑ 3.0 3.1 The Illustrated Encyclopedia of Aircraft, 2432
↑ "The Early Years of Douglas Aircraft, the 1920s"
↑ Hennessey, Juliette (1958). "The United States Army Air Arm, April 1861 to April 1917". USAF Historical Study No. 98. AFHRA (USAF). Retrieved 6 Mar 2011. , pp. 152 and 165.

Bibliography

"Martin, Martin-Willard". aerofiles.com. Retrieved 2008-10-21.
"The Early Years of Douglas Aircraft, the 1920s". U.S. Centennial of Flight Commission website. Retrieved 2008-10-21.
The Illustrated Encyclopedia of Aircraft. London: Aerospace Publishing.
Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions.

v t e Glenn L. Martin Company and Martin Marietta aircraft

Model numbers	66 67 70 123 130 139 145 146 156 162 166 167 170 179 182 187 190 210 219 223 234 237 247 270 272 316

Airliners	M-130 202 303 404

Attack aircraft	A-15 A-22 A-23 A-30 A-45 AM

Bombers	B-10 B-12 XB-13 XB-14 XB-16 B-26 XB-27 B-33 B-48 XB-51 B-57 XB-68 BM MB

Maritime patrol	PBM P4M P5M P6M

Military transports	C-3 JRM RM

Military trainers	T/TT N2M

Scout/Torpedo bombers	S MS TM T2M T3M T4M T5M T6M

Reconnaissance aircraft	RB-57D RB-57F

Martin Marietta	845 SV-5J X-23 X-24A X-24B

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