repeated on the morning of shot day. After the final check, all switches were left in operating position except the oscillograph drive switch. At time zero minus 5 seconds, the co-pilot turned on the oscillograph drive switch, then turned it off again after a 5 minute interval, After landing, the balance was checked before shutting off power. Since the strain channels were balanced while the aircraft was on the ground, the loads measured included the normal flight loads, as well as loads induced by the blast. The data presented in the results section are given in terms of loads above normal (one g) flight loads, These loads were obtained by using the flight loads just prior to shock arrival as a zero reading for the wing bending moment. These values were checked by determining total load using the ground balance and subtracting out the (one g) flight load. Results from both methods were in good agreement. The position selected for exposure of the B-47 aircraft in King Shot was an altitude of 35,000 ft and a slant range of 54,600 ft at shock arrival. The flight pattern is shown in Fig, 2.22. An orbit was again employed for synchronization with the drop ship; however, after leaving the orbit, a straight and level flight configuration was mainteined. Operation of the instrumentation was as explained for Mike Shot. meee 3