The RG65 is an international development class with a 50 year history. The class rules limit only the length of the hull (65 cm/25.6 in), the height of the rig (110 cm/43.3 in) and the sail area (2250 square centimeters/348.8 sq in.). The class originated in Argentina as a free-sailing class and is one of the fastest growing radio sailing classes in the world.

Boats are light, quick, and responsive. A typical boat weighs 1 kilogram with a 500 gram bulb. Many designs can be found on the internet and kits and fittings are readily available. Boats can be easily transported in the smallest of cars and sailed in small, urban ponds as well as open water.