Gliding angle: See Angle, gliding.
Gore: One of the segments of fabric composing the envelope.
Ground cloth: Canvas placed on the ground to protect a balloon.
Guide rope: The long trailing rope attached to a spherical balloon or airship, to serve as a brake and as a variable ballast.
Guy: A rope, chain, wire or rod attached to an object to guide or steady it, such as guys to wing, tail, or landing gear.
Hangar: A shed for housing airships or airplanes.
Helicopter: A form of aircraft whose support in the air is derived from the vertical thrust of propellers.
Horn: A short arm fastened to a movable part of an airplane, serving as a lever arm, e. g., aileron horn, rudder horn, elevator horn.
Hull of an airship: The main structure of a rigid airship, consisting of a covered elongated framework which incloses the gas bags and which supports the nacelles and equipment.
Inclinometer: An instrument for measuring the angle made by any axis of an aircraft with the horizontal, often called a clinometer.