Figure 5 The FAAM also holds the world’s oldest surviving purpose built aircraft carrier, a 1918 Thorneycroft Seaplane Lighter. This is Lighter H21, formerly recorded as T3, which is on the National Register of Historic Ships. Fifty-eight feet in length it was initially designed to be towed behind fast Royal Navy destroyers during WW I thus allowing an aircraft to be moved at speed to a new location. A later conversion enabled it to be used to launch an aircraft at sea from the Lighter platform. The same ‘whole object’ technique is being applied to reveal the cultural biography of this large working object. USING OBJECTS