Page:Operation Crossroads 1946.pdf/84

 :::off in an amazing shower of spring and bolts. The filter papers sandwiched between their screens could then be picked up, a few wires snipped to separate the screens, and the paper removed.


 * Figure 18 shows a drone B-17 landed at Enewetak after shot ABLE. A monitor is shown walking away from the rubber bag in the background. The bag had been dropped from the bomb bay into a wheeled contrivance and was pulled away from the B-17 with long ropes. The top filter unit is visible on the top of the B-17 fuselage. Los Alamos personnel removed the filter papers from the boxes and flew to Kwajalein on the waiting C-54 with the filter papers and the large rubber bags filled with air samples. The samples were analyzed at Kwajalein.


 * Navy F6F drones were guided to Bikini from the carrier USS Shangri-La (CV-38) by drone control F6Fs. For able, three drones sampled at 10,000, 15,000, and 20,000 feet (3.05, 4.57, and 6.1 km) approximately 8 to 15 minutes after the detonation. For BAKER, three drones sampled at 5,000, 9,000, and 14,000 feet (1.52, 2.74, and 4.27 km) 5 to 10 minutes after the detonation. After the sampling was complete they were guided to the island of Roi-Namur in Kwajalein Atoll and were landed there by ground control pilots. The F6F drones had a single unit with filter paper mounted under the left wing. A 10-foot (3.05-meter) pole with a hook was used to unhook and drop the unit from the wing. Six bolts were then removed on the doors

Figure 18. Air sampling gas bad and drone B-17 at Enewetak Island following shot ABLE, CROSSROADS.

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