oF ES 7 Rr PTTRUPEE, eee a SD SI Table 43. Aircraft positioning data for CASTLE, UNION. Slant Aircraft Altitude (km)b Ranged (km)b B-36 Effects 12.2 19.1 188 --- B-47 Effects 10.7 abort 9.4 9.1 20.0 --42.6 55.6 180 174 C-54-1 4.3 138.9 315 --- C-54-2 3.2 92.6 270 ~-- C-54-3 3.8 138.9 225 --- B-50 IBDA‘ B-50 IBDAS B-50 IBDAS Heading (deg) Directioga (deg) ------- --_— a-- Notes: SF rom ground zero. Done kilometer equals 3,281 feet. “Indirect Bomb Damage Assessment. The Test The UNION cloud reached an altitude of about 94,000 feet (Figure 83). Cloud travel was influenced by three winds. (28.65 km The low-altitude portion moved toward the west, the middle portion moved east-northeast and the mushroom cap is believed to have moved to the north and west. of Non the cloud-tracking aircraft made contact with fallout from the cloud mupbhroom cap (Reference 16, Tab N, p. CONTAMINATION. 33). The Wilson 2 and Wilson 3 flights, in the air until about H+13, detected no contamination moving toward Enewetak or Ujelang and at H+15 Wilson 2 proceeded to monitor the upwind sector of the patt Wilson 2 noted low-level contamination in the vicinity of Rongelap; acc ingly, PC-1546 was ordered to move south out of the area and return to kini. An early report (H+3) from a sampling aircraft indicated an aeri reading in the roentgen-per-hour range 10 nmi 290 (18.5 km) south of the sh