TEST A: EXPLOSION IN AIR 



Some of the heavier items exposed were tanks, 

 weapon carriers, trucks, amphibious clucks (or 

 DUKWs), tractors, airplanes. Lighter items included 

 guns, mortars, rocket launchers, rifles, torpedoes, mines, 

 depth charges, bombs, fuzes, grenades, rockets, flares, 

 telescopes, periscopes, infrared snooperscopes, alti- 

 meters, fire extinguishers, water distillation equip- 

 ment, odographs, knives, watches, telephones, switches, 

 gas maslvs, flasks, samples of oil, grease, gasoline. Lists 

 of clothing and supplies samples are almost endless; 

 they included canned apples, apricots, tomato juice, 

 string beans, creamed corn, bacon, turkey, butter. For 

 exposure inside ships' refrigerators, pork loins, hams, 

 sausage, beef, and frozen fish were taken along. There 

 were jackets, trousers, parkas, undershirts, drawers, 

 socks, boots, helmets, DDT, soap, and even skis. 



Valuable results, impossible to summarize ade- 

 quately, were obtained. Combustible materials had a 

 tendency to catch fire, presumably due to the thermal 

 radiation. This occurred even at distances of one or two 

 miles from the Zeropoint. Of course, many of these 

 fires could have been brought under control quickly by 

 ships' crews, if there had been crews aboard. 



As expected, thermal radiation showed a great pref- 

 erence for black surfaces. In many instances black- 

 jjainted objects, and even black writing, was burned 

 although nearby white surfaces were almost untouched. 

 Some objects melted. Rubber objects located near the 

 Zeropoint were scorched or burnt. 



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