66 and have been in RC flying since 1966. I built many RC planes from balsa also, covered them with cloth and stiffened the cloth with 'dope', and it wasn't the kind people take or smoke. Monocoat was a blessing for covering RC models. A hairdryer was all that was needed for a perfect looking plane. I also did model rockets with cameras onboard. Then couldn't wait to get the film developed to see the curvature of the earth! No instant gratification of digital cameras in those days! I bought a DJI Phantom 1 when they were first released. Built a gimble for my GoPro 3, and learned that five minutes of flight wasn't long with that gimble drawing so much current from the battery!
Back in the 60's, being an Amateur,(Ham), Radio Operator, helped, because I could fly my RC planes using a 50mhz radio, and not worry about interference from other RC modelers, or interfering with others. It's been a fun hobby, along with becoming an electrical engineer, specializing in digital communications and control.