RCsarjoja

RCsarjoja is a Finnish term used in the hobby of radio-controlled modelling to refer to series of remote-controlled models. The term combines RC (remote-controlled) and sarja (series). In practice, RCsarjoja can denote either a manufacturer's product line consisting of multiple related models released as a series, or a community-organized set of races or demonstrations that use a common set of rules and classes.

Typical scope and classifications: Common RC categories include cars, boats, airplanes, and drones. Within a series, models may share design elements, dimensions, and power systems. Scales commonly encountered include 1:10, 1:8, and 1:18 for cars; similar scale conventions exist for boats and planes. The term is often used in Finnish hobby media, clubs, and online forums to group related models or events.

Technology and culture: Modern RCsarjoja frequently rely on brushless electric motors, LiPo or NiMH batteries, and 2.4 GHz radio control. RTR kits are common, as are kit versions that require assembly. Competitive RCsarjoja emphasize tuning, chassis setup, and driving skills; non-competitive displays focus on scale realism and performance demonstrations. The concept also overlaps with online content, such as build logs and race results.

The term is primarily used in Finland and Finnish-language sources; outside Finland, the concept is described using generic terms such as RC series or RC racing.