Thomas-Morse R-5
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The Thomas-Morse R-5 also known as the TM-22 was an
American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, p ...
single-engined
parasol An umbrella or parasol is a folding canopy (building), canopy supported by wooden or metal ribs that is mounted on a wooden, metal, or plastic pole. It is usually designed to protect a person against rain. The term ''umbrella'' is traditionall ...
monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings. A monoplane has inherently the highest efficiency and lowest drag of any wing con ...
racing aircraft of the 1920s. Two were built for the
United States Army Air Service The United States Army Air Service (USAAS)Craven and Cate Vol. 1, p. 9 (also known as the ''"Air Service"'', ''"U.S. Air Service"'' and before its legislative establishment in 1920, the ''"Air Service, United States Army"'') was the aerial warf ...
in 1922, but after competing in the 1922 Pulitzer Trophy Race the type was abandoned.


Design and development

In early 1922, the
United States Army Air Service The United States Army Air Service (USAAS)Craven and Cate Vol. 1, p. 9 (also known as the ''"Air Service"'', ''"U.S. Air Service"'' and before its legislative establishment in 1920, the ''"Air Service, United States Army"'') was the aerial warf ...
placed orders with a number of American manufacturers for Racing aircraft to compete in the prestigious Pulitzer Trophy Race. Amongst the companies who received orders was
Thomas-Morse Aircraft The Thomas-Morse Aircraft Corporation was an American aircraft manufacturer, until it was taken over by the Consolidated Aircraft, Consolidated Aircraft Corporation in 1929. History Founded in 1910 by English immigrants William T. Thomas and hi ...
of
Ithaca, New York Ithaca () is a city in and the county seat of Tompkins County, New York, United States. Situated on the southern shore of Cayuga Lake in the Finger Lakes region of New York (state), New York, Ithaca is the largest community in the Ithaca metrop ...
, whose chief designer, B Douglas Thomas, designed a single-seat, single-engined
parasol wing A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings. A monoplane has inherently the highest efficiency and lowest drag of any wing confi ...
monoplane A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings. A monoplane has inherently the highest efficiency and lowest drag of any wing con ...
, the Thomas Morse TM-22, with two being ordered by the Army as the Thomas-Morse R-5.Wegg 1990, p. 27.Angelucci and Bowers 1987, pp. 423–424. The TM-22, which was based on Thomas's unsuccessful MB-9 fighter and MB-10 training aircraft, which had both flown in 1921 but had been quickly abandoned. It was of all-metal construction, with corrugated
duralumin Duralumin (also called duraluminum, duraluminium, duralum, dural(l)ium, or dural) is a trade name for one of the earliest types of age hardening, age-hardenable aluminium–copper alloys. The term is a combination of ''Düren'' and ''aluminium'' ...
skinning over a duralumin structure, while its wing featured a distinct hump in the centre above the
fuselage The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as wel ...
.''Flight'' 19 October 1922, p. 605. The two prototypes had different wings, with the first prototype having a span of 29 ft 0 in (8.84 m) and a wing area of 174 sq ft (16.2 m²), while the second had a span of 25 ft (7.62 m) and an area of 150 sq dt (13.9 m²). It was powered by a single 600 hp (447 kW) Packard 1A-2025
V12 engine A V12 engine is a twelve-Cylinder (engine), cylinder Internal combustion engine#Reciprocating engines, piston engine where two banks of six cylinders are arranged in a V engine, V configuration around a common crankshaft. V12 engines are more c ...
with its radiator and oil tank in a tubular container beneath the fuselage. The aircraft had a fixed
conventional landing gear Conventional landing gear, or tailwheel-type landing gear, is an aircraft Landing gear, undercarriage consisting of two main wheels forward of the Center of gravity of an aircraft, center of gravity and a small wheel or skid to support the tail ...
.


Operational history

The two aircraft were delivered to
Selfridge Field Selfridge Air National Guard Base or Selfridge ANGB is an Air National Guard installation located in Harrison Township, Michigan, near Mount Clemens. Selfridge Field was one of thirty-two Air Service training camps established after the Un ...
,
Michigan Michigan ( ) is a peninsular U.S. state, state in the Great Lakes region, Great Lakes region of the Upper Midwest, Upper Midwestern United States. It shares water and land boundaries with Minnesota to the northwest, Wisconsin to the west, ...
in September 1922, with the first prototype making its maiden flight there on 29 September. The aircraft suffered cooling problems and had poor handling, while struggling to reach the speed of 190 mph expected by the Air Service. Despite these problems, the two R-5s, flown by
Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...
Frank O'Driscoll Hunter Frank O'Driscoll Hunter (December 8, 1894 – June 25, 1982) was a World War I flying ace, being credited by the United States Army Air Service with downing nine enemy aircraft. Hunter became an advocate of fighter aircraft strategy and tactics. I ...
and
Lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
Clayton L. Bissell Major general (United States), Major General Clayton Lawrence Bissell (July 29, 1896 – December 24, 1972) was an air officer in the United States Army and United States Army Air Forces during World War I and World War II. World War I service ...
were amongst the starters for the Pulitzer Race on 14 October. Bissell finished tenth at an average speed of 155.5 mph (250.4 km/h), while Hunter finish eleventh, at a speed of 149.3 mph (240.4 km/h), the last two aircraft to complete the race. Both aircraft were sent to
McCook Field McCook Field was an airfield and aviation experimentation station in Dayton, Ohio, United States. It was operated by the Aviation Section, U.S. Signal Corps and its successor the United States Army Air Service from 1917 to 1927. It was named f ...
,
Dayton, Ohio Dayton () is a city in Montgomery County, Ohio, United States, and its county seat. It is the List of cities in Ohio, sixth-most populous city in Ohio, with a population of 137,644 at the 2020 United States census, 2020 census. The Dayton metro ...
for further testing in 1923, and were destroyed during static structural testing.


Specifications


See also


References

;Notes ;Bibliography *Angelucci, Enzo and Peter Bowers. ''The American Fighter''. Yeovil, UK:Haynes Publishing, 1987. .
"The 1922 Pulitzer Trophy Race"
''
Flight Flight or flying is the motion (physics), motion of an Physical object, object through an atmosphere, or through the vacuum of Outer space, space, without contacting any planetary surface. This can be achieved by generating aerodynamic lift ass ...
'', 19 October 1922. pp. 603–605. *Wegg, John. ''General Dynamics Aircraft and their Predecessors''. London:Putnam, 1990. . {{USAAS racing aircraft 1920s United States sport aircraft R-5 Parasol-wing aircraft Single-engined tractor aircraft Aircraft first flown in 1922