Product testing, also called consumer testing or comparative testing, is a process of measuring the properties or performance of products.
cockpit. n. 1. (Aeronautics) the compartment in a small aircraft in which the pilot, crew, and sometimes the passengers sit. Compare flight deck 1. 2. (Motor Racing) the driver's compartment in a racing car.
A fuselage is the body of an aircraft, which houses passengers, cargo, and usually the pilots of the craft as well. Fuselages vary widely in shape, size, and style, depending on the purpose of the aircraft that they are attached to.