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Giant Scale PT-17 Stearman With Moki Radial Engine World Models Biplane

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Filmed at Wenatchee Red Apple Flyers in Washington state

"The PT17 traces its roots to the Stearman Model 70, built as a private venture to meet a 1934 U.S. Army Air Corps request for a new trainer to replace its aging primary trainer fleet. Reengined with a Wright J5 Whirlwind, the design was first ordered by the U.S. Navy in 1935 as the NS1. Using a Lycoming R6805 radial engine and known as the Model 75, the Air Corps ordered the type into production as the PT13 in 1936. With a variety of engines and designations, the Model 75 went on to become one of the most widely produced and used primary trainers in U.S. military service.

The Model 75 biplane featured a fabriccovered, welded steel tube fuselage and spruce wing construction, and enjoyed a reputation as a simple, cost effective design. Student pilots occupied the front cockpit, while the instructor sat in a rear cockpit with identical controls. Its rugged, forgiving nature made it an excellent primary trainer, providing a relatively safe introduction for pilot trainees into military flight.

RC Plane Crash | Giant Scale PT17 Stearman With Moki Radial Engine

The Boeing Aircraft Company bought out the Stearman Company in the middle 1930s, and continued production of the Model 75 for the military. Although built by Boeing, the Model 75 continued to be known as the “Stearman”. In 1940, a Continental R6705 engine was fitted to the design to create the PT17, of which over 3,500 were eventually ordered for U.S. Army service. The plane also enjoyed large U.S. Navy orders as the N2S, and in 1942 both services adopted an interchangeable version as the N2S5/PT13D, powered by the Lycoming R68017 engine. Demand for the Stearman at the outbreak of World War II outstripped engine supply, so another powerplant, the Jacobs R7557, was used on the airframe to create the PT18."

#PT17Stearman #spektrum #wenatcheewa

posted by obite8i