NECTAR -- 33,000 feet (10.06 km), slant range 126,380 feet (38.52 km). On YANKEE, 0.020 R/hr was recorded in the aircraft for a period of 20 seconds. After the tests, the aircraft was returned to the manufac- turer for work and was found to be radiating about 0.010 R/hr at hot spots on the landing gear, perhaps due to operating from the same run- way used by sampler aircraft, as the Project 6.2a B-36D did not fly near the cloud. Staffing: Six civilians were associated with this project; four from the University of Dayton and two from WADC. in Table 19. Their exposures are given Included in this is the aircraft commander who received 0.100 R, but the rest of the aircrew cannot be identified from the project report. Project Report: Reference 35. Project 6.2b -- Thermal Effects on B-47B Aircraft In Flight Agencies: Allied Research Associates (ARA) Wright Air Development Center (WADC) Cook Research Laboratories (CRL) Naval Radiological Defense Laboratory (NRDL) Operations: A B-47B aircraft (No. 50-037), used in similar experi- ments during IVY, was flown in five shots to determine thermal effects. Instrumentation and aircraft positioning were determined by WADC, NRDL provided measurements, and CRL installed and maintained the instrumentation. Shots: BRAVO, ROMEO, KOON, UNION (Bikini); NECTAR (Enewetak) . Radiation Exposure Potential: The range of the aircraft from bursts limited the possibility of initial radiation exposure of the flight crew. Aircraft positions at burst time for the various shots were: BRAVO -- 35,000 feet (10.67 km), slant range 61,800 feet (18.84 km) ROMEO -- 35,000 feet (10.67 km), slant range 83,500 feet (25.45 km) 191