Consolidated PT-1
Encyclopedia
The Consolidated
Consolidated Aircraft
The Consolidated Aircraft Corporation was founded in 1923 by Reuben H. Fleet, the result of the Gallaudet Aircraft Company's liquidation and Fleet's purchase of designs from the Dayton-Wright Company as the subsidiary was being closed by its parent corporation, General Motors. Consolidated became...
PT-1 Trusty (company designation Model 1) was a biplane
Biplane
A biplane is a fixed-wing aircraft with two superimposed main wings. The Wright brothers' Wright Flyer used a biplane design, as did most aircraft in the early years of aviation. While a biplane wing structure has a structural advantage, it produces more drag than a similar monoplane wing...
primary trainer used by the United States Army Air Service
United States Army Air Service
The Air Service, United States Army was a forerunner of the United States Air Force during and after World War I. It was established as an independent but temporary wartime branch of the War Department by two executive orders of President Woodrow Wilson: on May 24, 1918, replacing the Aviation...
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Design and development
In 1921, Colonel Virginius Clark, chief designer of the Dayton-Wright CompanyDayton-Wright Company
The Dayton-Wright Company was formed in 1917, on the declaration of war between the United States and Germany, by a group of Ohio investors that included Charles F. Kettering and Edward A. Deeds of Dayton Engineering Laboratories Company...
, designed the Chummy sporting biplane. The airframe was advanced in its use of the new Clark Y thick-section aerofoil and a welded fuselage framework of chrome-molybdenum
Molybdenum
Molybdenum , is a Group 6 chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin Molybdaenum, from Ancient Greek , meaning lead, itself proposed as a loanword from Anatolian Luvian and Lydian languages, since its ores were confused with lead ores...
steel tubing. A departure from the all-wood structures found in other trainers, the structure proved sturdy and dependable. It was offered to the US Army Air Service as a replacement for the Curtiss JN-4D trainer, with a choice of Le Rhone
Gnome et Rhône
Gnome et Rhône was a major French aircraft engine manufacturer. Between 1914 and 1918 they produced 25,000 of their 9-cylinder Delta and Le Rhône 110 hp rotary designs, while another 75,000 were produced by various licensees, powering the majority of aircraft in the first half of the war on...
or Clerget
Clerget
Clerget was the name given to a series of early rotary aircraft engine types of the World War I era that were designed by Pierre Clerget. Manufactured in both France by Clerget-Blin and Great Britain by Gwynne Limited, they were used on such aircraft as the Sopwith Camel and Vickers Gunbus.In the...
rotary
Rotary engine
The rotary engine was an early type of internal-combustion engine, usually designed with an odd number of cylinders per row in a radial configuration, in which the crankshaft remained stationary and the entire cylinder block rotated around it...
piston engines.
In 1922, the Army ordered three TA-3 (Trainer, Air-cooled, Type 3) machines for evaluation with the Le Rhone engine and dual controls. Evaluation showed that the type had the makings of a good trainer, but was somewhat lacking in power, so in 1923 Dayton-Wright re-engined one TA-3 with a more powerful 110 hp (82 kW) Le Rhone.
The USAAS then ordered 10 examples of this up-engined model, and these were the last US Army aircraft to be delivered with a rotary-engine. Appreciating this type of powerplant had passed its development peak, the USAAS then contracted for three examples of the TW-3 (Trainer, Watercooled, Type 3) with a 150 hp (112 kW) Wright-Hispano I
Hispano-Suiza 8
The Hispano-Suiza 8 was a water-cooled V8 SOHC aero engine introduced by Hispano-Suiza in 1914 and used by a number of Allied aircraft during the First World War...
V8. The revised type clearly had greater long-term potential, and in June 1923 the USAAS contracted for 20 TW-3 production aircraft, together with enough spare parts for the construction of another three aircraft. At this time the General Motors Corporation was thinking of pulling out of the aircraft business and closing its Dayton-Wright subsidiary, so Reuben Fleet of the Gallaudet
Gallaudet
Gallaudet is the name of* Thomas Hopkins Gallaudet* Edward Miner Gallaudet* Thomas Gallaudet * Gallaudet University* Edson Fessenden Gallaudet* Gallaudet Aircraft Company...
company secured rights to the Dayton-Wright trainer design. When Gallaudet shareholders expressed disapproval at this move, Fleet left the company and established the Consolidated Aircraft Corporation.
It was to this new company the TW-3 order went, and all the aircraft were delivered by the end of 1923 with the uprated powerplant of one Wright-Hispano E (licence-built Hispano-Suiza 8) engine. Once the aircraft had entered service, Fleet continued to improve the TW-3, the most important change being the removal of the engine cowling to improve the occupants' forward and downward fields of vision. Visibility was still poor, so Fleet secured US Army permission to rebuild one TW-3 with a new, slimmer fuselage, providing tandem rather than side-by-side seating. This revised aircraft was generally known as the 'Camel' due to the hump between its two cockpits.
The 'Camel' may be regarded as the prototype of the Consolidated response to the USAAS's 1924 requirement for a new primary trainer. In the early summer of 1924, the USAAS tested a prototype unofficially designated TW-8 and placed an order for 50 examples of the Consolidated Model 1 production variant for service with the designation PT-1. Early production models had flat turtlebacks, soon replaced by a faired version, and some of the first ones were likely built at the Gallaudet plant in Norwich before production began at Buffalo. The first 171 of the 221 produced used a streamlined nose radiator, the remainder used the unfaired installation. One PT-1 airframe was completed as XPT-2 with a 220 hp (164 kW) Wright J-5 radial engine.
Operational history
The PT-1 became the first training airplane purchased by the Army Air Service in substantial quantity following World War I. Aviation cadets in Texas and California flew it extensively during the late 1920s and early 1930s. It acquired the nickname 'Trusty' for their excellent ability to make a quick and effective recovery from a spin. Easy to fly, the Trusty made some students overconfident, and they received a shock when they advanced to faster airplanes with more difficult handling characteristics. The 'Trusty' was commonly flown without its cowlings in an effort to prevent overheatingWhereas the TW-3 had supplemented the JN-4D, the PT-1 supplanted this wholly obsolescent type and was responsible for a radical improvement in the safety record of US Army pilot training. One of the aircraft was diverted to the US Navy for trials, and four other generally similar aircraft were delivered to Siam in 1928. From 1928 the PT-1 was replaced in front-line service by the Consolidated PT-3
Consolidated PT-3
-References:...
, but then became a valuable implement in the National Guard flying programme until retired in the early 1930s.
Variants
- Dayton-Wright (Trainer, Air-cooled type 3), 13 built, 80 hp (60 kW) Le Rhone C-9 engine wingspan 30 ft 11 in (9.4 m), Length 22 ft 7 in (6.9 m), gross weight 1,753 lb (795 kg)
TA-5
- Single TA-3 with Lawrance J-1Lawrance J-1The Lawrance J-1 was an engine developed by Charles Lanier Lawrance and used in American aircraft in the early 1920s. It was a 9-cylinder, air-cooled radial design.-Development:...
engine used for tests of a single-wheel landing gear arrangement in 1923.
TW-3
- Dayton-Wright (Trainer, Water-cooled type 3), 2 built, 150 hp (112-kW) Wright-Hispano IHispano-Suiza 8The Hispano-Suiza 8 was a water-cooled V8 SOHC aero engine introduced by Hispano-Suiza in 1914 and used by a number of Allied aircraft during the First World War...
engine wingspan 34 ft 9 in (10.6 m), Length 25 ft 7 in (7.8 m), gross weight 2,447 lb (1019 kg)
TW-3
- Consolidated (Trainer, Water-cooled type 3), 20 built, 180 hp (134 kW) Wright-Hispano EHispano-Suiza 8The Hispano-Suiza 8 was a water-cooled V8 SOHC aero engine introduced by Hispano-Suiza in 1914 and used by a number of Allied aircraft during the First World War...
engine wingspan 34 ft 9 in (10.6 m), Length 26 ft 9 in (8.1 m), gross weight 2,407 lb (1,092 kg)
PT-1
- Consolidated (Primary Trainer number 1), 221 built, 180 hp (134 kW) Wright-Hispano EHispano-Suiza 8The Hispano-Suiza 8 was a water-cooled V8 SOHC aero engine introduced by Hispano-Suiza in 1914 and used by a number of Allied aircraft during the First World War...
(V-720) engine
XPT-2
- PT-1 with 225 hp (168 kW) Wright R-790 (J-5)Wright R-790The Wright R-790 Whirlwind was a series of nine-cylinder air-cooled radial aircraft engines built by Wright Aeronautical Corporation, all of which had a displacement of about 790 in³ and around 200 hp...
engine, wingspan 34 ft 7 in (10.5 m), Length 28 ft 4 in (8.6 m), gross weight 2,427 lb (1,100 kg)
Operators
Siam
United States
- United States Army Air ServiceUnited States Army Air ServiceThe Air Service, United States Army was a forerunner of the United States Air Force during and after World War I. It was established as an independent but temporary wartime branch of the War Department by two executive orders of President Woodrow Wilson: on May 24, 1918, replacing the Aviation...
- United States NavyUnited States NavyThe United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...
- United States National GuardUnited States National GuardThe National Guard of the United States is a reserve military force composed of state National Guard militia members or units under federally recognized active or inactive armed force service for the United States. Militia members are citizen soldiers, meaning they work part time for the National...
Survivors
- PT-1 "Trusty" (s/n 26-233) is on display at the National Museum of the United States Air ForceNational Museum of the United States Air ForceThe National Museum of the United States Air Force is the official museum of the United States Air Force located at Wright-Patterson Air Force Base northeast of Dayton, Ohio. The NMUSAF is the world's largest and oldest military aviation museum with more than 360 aircraft and missiles on display...
in Dayton, OhioDayton, OhioDayton is the 6th largest city in the U.S. state of Ohio and the county seat of Montgomery County, the fifth most populous county in the state. The population was 141,527 at the 2010 census. The Dayton Metropolitan Statistical Area had a population of 841,502 in the 2010 census...
. It was obtained from The Ohio State University in 1957.
- PT-1/PT-3 A PT-1 that once flew with the 154th Observation Squadron of the Arkansas National GuardArkansas National GuardThe Arkansas National Guard comprises both Army and Air components. The Constitution of the United States specifically charges the National Guard with dual federal and state missions. In fact, the National Guard is the only United States military force empowered to function in a state status...
, and later owned by the University of Arkansas College of EngineeringUniversity of Arkansas College of EngineeringThe College of Engineering is the University of Arkansas' college for engineering students. Although officially becoming a separate division in 1913, The University of Arkansas focused early on engineering...
was rebuilt with a J-5 Engine used on PT-3 models is on display at the EAA AirVenture MuseumEAA AirVenture MuseumThe EAA AirVenture Museum is a museum dedicated to the preservation and display of historical and experimental aircraft located in Oshkosh, Wisconsin adjacent to the Wittman Regional Airport. Paul Poberezny proposed the idea of the EAA Air Museum-Air Education center in August 1958. The current...
in Oshkosh, WisconsinOshkosh, WisconsinAs of the census of 2000, there were 62,916 people, 24,082 households, and 13,654 families residing in the city. The population density was 2,662.2 people per square mile . There were 25,420 housing units at an average density of 1,075.6 per square mile...
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