Monoplace

Monoplace is a term used to denote a vehicle or device designed for a single occupant. The word combines mono- meaning single and place meaning seat or occupancy. In aviation, monoplace refers to aircraft configured for solo flight, in contrast with two-seat or multi-seat configurations. Monoplace aircraft are common in sport and utility segments, including single-seat sailplanes (gliders) and ultralight aircraft. Because there is only one occupant, monoplace designs tend to be lighter and simpler and may have restricted cockpit equipment to reduce weight and maintenance.

In flight training, regulations in many jurisdictions require training flights to be conducted in two-seat aircraft with an instructor before solo operation in a monoplace, though some contexts allow direct solo if permitted.

In medical contexts, the term monoplace also describes a single-occupant hyperbaric chamber used for hyperbaric oxygen therapy or diving decompression, in contrast to multiplace chambers that accommodate several patients.

In different industries, monoplace is used more broadly to describe single-occupant devices or vehicles, although the term is most common in sport aviation.