A US Navy WV2 from 1958, then converted in 1962 to an NC-121K and allocated to VXN-8 Oceanographic Air Survey Unit at NAS Patuxent River as JB925, an airborne geophysical laboratory. Used in Project Magnet to gather magnetic data to improve oceanic navigational charts. Seen here overnighting at Prestwick during one of its several weeks long international detachments. Its red bomb-like towed magnetometer can just be seen wound up to the fuselage underside mounting between the main wheels. It carries a cartoon of the Paisano bird, also known as the Roadrunner. Retired in 1973.