_SES... be BOUNDARY TARE controller will establish radio and IFF contact with VIKING aircraft and provide them with range and bearing to their H-hour positions, VIKING aircraft will remain under the direct control of BOUNDARY TARE on VHF Channel "C" until completion of their missions, except when directed to switch to VHF Channel "BY for time hacks. VIKING aircraft will maintain radio silence on Channel "B", returning to assigned mission Channel (VHF "C") immediately after receiving the time -hacks. Each aircraft will orbit H-hour station and, just before H-hour, pilots will orierit the longitudinal axis of their aircraft, in relation to Ground Zero, as instructed at the mission briefing. VIKING aircraft will be positioned in space at different altitudes over the same geo- graphic reference point, as specified in Annex D. VIKING aircraft are prohibited from approaching a position closer than thirty (30) nautical miles horizontally to the periphery of the nuclear clowl or any portion thereof. ¢. VIKING aircraft will be instructed by BOUNDARY TARE to switch to VHF Channel "BY" for the following time hacks: (1)" H - 2 hours 2 minutes for H - 2 time hack. (2) H-1 hour 2 minutes for H -1 time hack... (3) H - 32 minutes for H - 30 minutes time hack. (4) H - 3 minutes and remain on B until after H-hour. d. VIKING aircraft will maintain assigned altituie at all times and execute normal orbit pattern so that observers can watch cloud development, e. Commanders of VIKING aircraft may establish whatever time they desire for departure from the operational area. However, the departure plan must be coordinated first with the CIC (BOUNDARY TARE) on WHF Channel "C", BOUNDARY TARE will then release the VIKING aircraft concernéd from the area, with instructions to proceed to its point of first intended landing as specified by the pilot in his previously filed DD Form 175. BOUNDARY TARE also will notify DIRTY FACE of the VIKING departure, f£. Personnel aboard each VIKING aircraft will turn in their density goggles and film badges, together with any other related special equipment, to the TG 7.1 Radiological Safety monitor accompanying each aircraft, In turn, the Rad Safety monitor will insure that all such items of equipment are returned to the proper agency of Joint Task Force SEVEN, OFFICIAL: jf fo . f Kh PAUL H. FACKL elen. HOWELL M. ESTES, JR. Brigadier General, U.S. A. F,. Commander Lt Colonel, USAF Director of Operations TASK GROUP 7.4 OPRS ORDER NO, 2-54 ANE Qu2 ep