Thorp T-5

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Boeing School T-5 NX15542 (8125941747).jpg
The T-5 at Oakland Airport in 1939
Role Trainer
National origin United States
Manufacturer Boeing School of Aeronautics
Designer John Thorp
First flight 1939
Introduction 1937
Number built 1

The Boeing T-5 or Thorp T-5 was a student-built aircraft that was designed by John Thorp for the Boeing School of Aeronautics. [1]

John Willard Thorp was an American aeronautical engineer who made significant contributions to aircraft design throughout his life.

The Boeing School of Aeronautics was started by Boeing to compete against the Wright brothers' Wright Flying School and Curtiss Flying School in San Diego, California. Founded in 1929 at Oakland Municipal airport, the school started with a staff of 19 and 100 students. It was licensed by the Aeronautical Chamber of Commerce, who had taken over the licensing of aviation schools.


Design and development

The T-5 was an all-metal, side-by-side configuration, low-wing, conventional landing gear-equipped aircraft. [2] The prototype was test flown in 1939 by Eddie Allen.[ citation needed ]

Conventional landing gear aircraft undercarriage arrangement with main gear forward plus tail support

Conventional landing gear, or tailwheel-type landing gear, is an aircraft undercarriage consisting of two main wheels forward of the center of gravity and a small wheel or skid to support the tail. The term taildragger is also used, although some claim it should apply only to those aircraft with a tailskid rather than a wheel.


The T-6 variant, with tricycle gear BoeingSchoolT6 (4533980194).jpg
The T-6 variant, with tricycle gear
Taildragger prototype
Tricycle gear conversion of the T-5 with a Lycoming engine. [3]

Specifications (T-5)

Data from Popular Aviation

General characteristics

Radial engine reciprocating engine with cylinders arranged radially from a single crankshaft

The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is called a "star engine" in some languages. The radial configuration was commonly used for aircraft engines before gas turbine engines became predominant.


  • Cruise speed: 233 mph (375 km/h; 202 kn)
  • Range: 900 mi (782 nmi; 1,448 km)

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  1. Ronald T. Reuther, William T. Larkins. Oakland Aviation. p. 63.
  2. "New Boeing Trainer Nears Completion". Popular Aviation. October 1937. p. 40.
  3. William T. Larkins, Ronald T. Reuther. San Francisco Bay Area Aviation. p. 60.

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