The experimental program for IVY focused primarily on the MIKE experiment and secondarily on KING. The effort, subdivided into 11 specific programs, was heavily oriented to weapons development experiments and focused to a lesser extent on effects experiments (10: 118). 4.8.3 Dose Summary for Operation IVY. The generally smooth MIKE operations were marred by an accident when a cloud-sampling pilot was lost at sea after his aircraft ran out of fuel. A seven-man rescue crew flew their aircraft over a fallout zone to reach the area of the downed airplane as soon as possible. In the process, the crew- members received radiation doses ranging from 10 to 17.8 rem. These levels considerably exceeded the maximum permissible limit of 3.9 rem of gamma radiation established for Operation IVY participants (10: 3). A crew of 12 in a second aircraft was overexposed when caught in fallout debris while on a photographic mission just after the MIKE shot. dose for a member of this crew was 11.6 rem. The highest Other than these two events, no cases exceeded the established limit during IVY (10: 3). Summary of External Doses for Operation IVY as of 1 May 1986 Gamma Dose (rem) 0-0.5 0.5-1 1-3 3-5 5-10 10+ Army 1,300 1 1 0 0 0 Navy 5,191 23 42 2 0 0 Air Force 2,199 325 37 4 9 10 Marine Corps 169 1 8 0 0 0 Civilian DOD Participants 28 0 3 0 0 0 97