T-34A Mentor (oz7669)
About this Plan
T-34A Mentor. Scale model for control line. For .45 to .60 power. McCoy 60 shown.
Quote: "This clean looking military trainer was one of the most successful in aviation history. Developed from the extremely popular record breaking Bonanza commercial design the Mentor was selected as the standard trainer for the United States Air Force. A close copy was procured by the United States Navy and designated T-34A. Orders for this popular craft came in from Chile, Columbia and El Salvador while arrangements were made to manufacture the plane, under license, in Canada and Japan.
The T -34A was selected as the standard trainer of the US after a ten year debate regarding the characteristics required for a trainer in this jet age. Primary, Basic, Advanced, and Acrobatic training as well as Cross Country Navigation and Instrument Flight instruction could be accomplished with the Mentor. It was also used for Tactical Training when equipped with machine guns and rockets or bombs.
The T-34A is extremely maneuverable and has an ultimate load factor of 9-G which allows unlimited stunting with complete safety. Rate of climb is 1,182 feet per minute; during take off the Mentor clears the ground in about 1000 feet and can clear a 50 foot obstacle in 1500 feet. During landing the ground roll is about 400 feet.
This rugged trainer is very easy to fly while maintaining its maneuverability. Furthermore it has that big plane feeling which is important in trainers, making the Mentor ideally suited for its task.
The plans illustrate a man size control line beauty suitable for any engine; glow plug or ignition, from .45 to .60 cubic inch displacement. The scale of 1-1/ 2 inches to the foot gives this model a wingspan of 49 inches and a projected wing area of almost 400 square inches. A model of this size is ideal for a super scale project so plans and photographs include hard to obtain cockpit details. Navigation and landing lights as well as an illuminated instrument panel are easily installed in this spacious model.
Construction begins with the wing. Cut spars, landing gear supports, ribs and joiners to shape, assemble spars with plywood joiners. Note that one pair of joiners are slotted to receive the landing gear supports. These are cemented in place, followed by the wing ribs..."
Direct submission to Outerzone.
Update 28/04/2021: Added article from American Modeler, November 1960, thanks to RFJ.
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User commentsHello from a former rebellious colony, How difficult would it be to add retractable landing gear and construct as an electric powered radio control? Thank you!
Jon Caples - 13/04/2019
Hello again, In general, can plans for a given size, i.e. 21 inch wingspan, be modified to different dimensions? Say enlarged to a wingspan of 38 inches? Would additional re-engineering be required? Could the existing plans be photographically shrunken or enlarged without inducing structural weakness or adverse handling? Thank you again!
Jon Caples - 13/04/2019
Hi Jon, Nowadays, you don't enlarge or reduce a plan photographically. That was about 20 years ago. Today any good software, like Photoshop can be very easily used for enlarging a plan. Usually, the structure doesn't need any big modifications apart from perhaps some reinforcement in such issues like wing dihedral.
Eduardo Barriga - 28/04/2021
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