"The DHC-4 Caribou is a twin-engine, short takeoff and landing (STOL) cargo aircraft produced by aerospace manufacturer de Havilland Canada. The Caribou was developed as a military cargo and troop carrier, and was conceptually based on the STOL performance of the smaller de Havilland DHC-2 Beaver and DHC-3 Otter, but with greater cargo capacity. The design is one of the most capable aircraft for austere and bush flying ever created."