RCplaner

RCplaner is a term used in the radio-controlled aviation hobby to refer to remotely piloted sailplanes designed for efficient thermalling and long-duration glide flights. The term does not denote a single manufacturer or standardized model but rather a class of aircraft that emphasizes glide performance and endurance over powered aerobatics.

Design and construction typically feature a high aspect ratio wing, a slim fuselage, and lightweight materials to minimize drag. Common construction approaches include balsa wood with light coverings, composites, or carbon-fiber reinforced components. The power systems, if included, are modest electric motors or pusher configurations to provide limited assist during launch while preserving favorable glide characteristics. Control surfaces usually consist of ailerons, elevator, and rudder, with some models employing spoilers or airbrakes to enhance glide control.

Launch and flight characteristics of RCplaners emphasize smooth, sustained gliding and efficient energy management. They are well suited to slope soaring, thermal hunting, and long-duration flights. Launch methods commonly include hand launch, winch, or aerotow, depending on size and weight. Many enthusiasts use RCplaners for FPV (first-person view), telemetery, or pure aerial gliding, though the appeal primarily lies in glide efficiency and endurance rather than rapid agility.

Terminology and usage vary across communities, and RCplaner is often discussed in hobby forums and magazines as a category rather than a single product line. Regulatory and safety considerations follow general RC aviation rules, including line-of-sight operation, altitude restrictions, and compliance with radio-frequency regulations. See also RC sailplane, RC plane, and FPV aviation.