Lockheed P-3A Orion N425AU (ex Bu151361) owned by Aero Union Corporation and modified to their "Aerostar" fire tanker design with large belly retardant tank. It is seen at Aero Union's home base Chico, in northern California in October 1992. Photo: Geoff Goodall

GEOFF GOODALL'S AVIATION HISTORY SITE www.goodall.com.au