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62% Scale RC Stearman PT-17

62% Scale RC Stearman PT-17

Is this the largest RC Biplane in the world?

We are always impressed and pleasantly surprised by the talented modelers from around the world who push the boundaries of our hobby. The most recent addition to the monster scale league is from designer and builder Frans Tanghe from the Netherlands with his stupendous 62% scale Stearman PT-17.


With a wingspan of 19.85 feet, his Kadet primary trainer biplane is 15 feet long and weighs 253 pounds and is built like a cross between a giant RC model and an ultralight experimental aircraft. It features heavy duty shock absorbing landing gear and is powered with a Valach Motors 800cc radial engine swings an impressive 48-inch propeller. Turning at 3,800 rpm it producing a whooping 45 horse power.

If you are wondering where you can get this engine, you’ll be happy to know it is available in the U.S. from Troy Built Models (troybuiltmodels.com).

The video is courtsey of YouTube.

Updated: June 30, 2011 — June 30, 2011
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  1. I think anything that would be capable of carrying a human aloft should not be considered a “model”, but instead a homebuilt experimental aircraft. The only thing stopping this monster from being flown from the aircraft is the control system! There are man-carrying home built aircraft smaller than this…..

  2. Great videos mate, thanks! I agree that talented modelers push the boundaries of hobby. Stearman PT-17 is an excellent aircraft. The features in this model such as Valach Motors 800cc radial engine swings an impressive 48-inch propeller are great. Thanks for giving the info regarding the availability of engine. I’ve been looking for an article that can help to broaden my knowledge about these engines. Because I’m going to start making my first ever Rc plane.

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