Short Takeoff and Landing
STOL (Short Takeoff and Landing) refers to the capability of an aircraft to operate from runways significantly shorter than those required by conventional aircraft of similar size. True STOL performance typically requires takeoff and landing distances of less than 500 meters (1,500 feet).
STOL capability is achieved through various design features:
- High-lift devices: Large flaps, leading-edge slats, and blown flaps that dramatically increase lift at low speeds
- High power-to-weight ratio: Engines that provide sufficient thrust for steep climbs and decelerations
- Robust landing gear: Designed for high sink rates and unprepared surfaces
- Low wing loading: Large wing area relative to aircraft weight
Classic STOL aircraft include the de Havilland DHC-6 Twin Otter, Pilatus PC-6 Porter, and DHC-7 Dash 7. STOL operations are essential for accessing remote communities, island airports, and bush strips where conventional runways are unavailable. Notable STOL airports include Lukla (VNLK) in Nepal, Saba (TNCS) in the Caribbean, and numerous strips in Alaska and northern Canada.