- Thomas-Morse O-19
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Thomas-Morse O-19 Role Observation biplane Manufacturer Thomas-Morse Introduction 1929 Primary user United States Army Air Corps Number built 176 The Thomas-Morse O-19 was an American observation biplane built by the Thomas-Morse Aircraft Company for the United States Army Air Corps.
Development
The O-19 was based on the earlier Thomas-Morse O-6 biplane. It was a conventional two-seat biplane of metal construction with fabric-covered wings and fixed tail surfaces. The design was evaluated with a number of different engine installations and the type was ordered into production as the O-19B with a Pratt & Whitney R-1340-7 Wasp radial engine.
Variants
- XO-19
- Improved version of the XO-6 with a 450hp Pratt & Whitney R-1340-3 engine, one built.
- YO-20
- Similar to the XO-19 with a 525hp Pratt & Whitney R-1690-1 engine, one built.
- XO-21
- Similar to the XO-19 with a 600hp Curtiss H-1640-1 engine, one built later re-engined as the XO-21A
- XO-21A
- The XO-21 fitted with a 525hp Wright R-1750-1 engine.
- O-19
- Service evaluation aircraft with a 500hp Pratt & Whitney R-1340-9, two built.
- O-19A
- O-19 without the 88 US Gallon main fuel tank, one built.
- O-19B
- Production version with a 450hp Pratt & Whitney R-1340-7 engine, two machine-guns and modified cockpit, 70 built.
- O-19C
- O-19B with tailwheel, ring cowl and minor changes, 71 built.
- O-19D
- One O-19C converted as a VIP staff transport with dual controls.
- O-19E
- O-19C with extended upper span wing and a 575hp Pratt & Whitney R-1340-15 engine, 30 built.
- O-21
- O-19 with 600hp Curtiss H-1640 Chieftain engine, one built, one converted.
- YO-23
- XO-19 with a 600hp Curtiss V-1570-1 Conqueror engine, one built.
- Y1O-33
- One O-19B re-engined with a 600hp Curtiss V-1570-11 engine and revised tail surfaces, one converted.
- Y1O-41
- A sesqui-plane conversion of the Y1O-33 with a 600hp Curtiss V-1570-79 engine, one converted. Later modified by Consolidated Aircraft as their Model 23 and exported to Mexico
- Y1O-42
- High-wing monoplane version of the Y1O-41, static test airframe only.[1]
Operators
Specifications (O-19B)
Data from The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 3000
General characteristics
- Crew: Two
- Length: 28 ft 4 in (8.64 m)
- Wingspan: 39 ft 9 in (12.12 m)
- Height: 10 ft 6 in (3.20 m)
- Wing area: 348 ft2 (32.33 m2)
- Empty weight: 2722 lb (1235 kg)
- Gross weight: 3800 lb (1724 kg)
- Powerplant: 1 × Pratt & Whitney R-1340-7 Wasp radial piston engine, 450 hp (336 kW)
Performance
- Maximum speed: 137 mph (220 km/h)
- Service ceiling: 20,500 ft (6250 m)
Armament
- 2 x 0.3in (7.62mm) machine-guns (one fixed forward-firing, one movable in rear cockpit)
See also
- Related development
- Thomas-Morse O-6
- Related lists
References
- John Andrade, U.S.Military Aircraft Designations and Serials since 1909, Midland Counties Publications, 1979, ISBN 0-904597-22-9 (Page 137 and 138)
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 3000
Aircraft produced by Thomas-Morse Aircraft Thomas Brothers Thomas-Morse MB-1 · MB-2 · MB-3 · MB-4 · MB-6 · MB-7 · MB-9 · MB-10 · R5 · TM-23 · TM-24 · O-19 · Y1O-41 · Y1O-42 · XP-13 Viper
Aircraft produced by Consolidated Aircraft Manufacturer designation By role USAAC/USAAF observation aircraft Observation O-1 • O-2 • XO-3 • XO-4 • O-5 • O-6 • O-7 • O-8 • O-9 • XO-10 • O-11 • O-12 • O-14 • XO-14 • XO-15 • XO-16 • O-17 • XO-18 • O-19 • YO-20 • XO-21 • O-22 • YO-23 • O-24 • O-25 • Y1O-26 • Y1O-27 • O-28 • O-29 • O-30 • O-31 • O-32 • Y1O-33 • O-34 • O-35 • XO-36 • O-37 • O-38 • O-39 • O-40 • Y1O-41 • O-42 • O-43 • XO-44 • O-45 • O-46 • O-47 • XO-48 • O-49 • YO-50 • YO-51 • O-52 • O-53 • YO-54 • YO-55 • O-56 • O-57 • O-58 • O-59 • O-60 • XO-61 • O-62 • XO-63
Observation Amphibian Lists relating to aviation General Aircraft (manufacturers) · Aircraft engines (manufacturers) · Airlines (defunct) · Airports · Civil authorities · Museums · Registration prefixes · Rotorcraft (manufacturers) · TimelineMilitary Accidents/incidents Records Categories:- United States military reconnaissance aircraft 1920–1929
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