aircraft material "aircraft material" includes - (a) parts of, and components of or accessories for, aircraft, whether for the time being in aircraft or not; (b) engines, armaments, ammunition, bombs and other missiles of any description in, or for use in, aircraft; (c) any other gear, apparatus or instruments in, or for use in, aircraft; (d) any apparatus used in connection with the taking off or landing of aircraft or for detecting the movement of aircraft; and (e) any fuel or other substances used for the propulsion of aircraft and any material used as a lubricant or coolant for aircraft or aircraft material; ACT 77 - ARMED FORCES ACT 1972 2. Interpretation.