Sw, . nT APPENDIX TO ANNEX "Ett OPERATIONS ORDER NO, TIME BROADCASTS 2= (This document supercedes Appendix 5 to Annex "E", Task Group 7.4 Operations Order No. 2-54, dated 26 February 1954. Pages E5-1, E5-2 and £5-3 will be removed from Task Group 7.4 Operation Order No. 2-54 and will be des-~ troyed in accordance with AFR 205-1.) The following time broadcasts will be made manually from BOUNDARY TARE on VHF Channel "B", Call sign BARRYMORE: H-3:00 Hours H-2:00 Hours H-1:30 Hours H~1:00 Hour H-0:45 Minutes H-0:30 Minutes An automatic time tape broadcast will be used from H-15 minutes through H-Hour. This broadcast will be synchronized with the device-firing timer, to insure time broadcast accurany in relation to actual blast time. This — broadcast will be continual, with counts down and hack tones given at each minute increment of the 15 minutes, BOUNDARY TARE will instruct participating aircraft when to switch to VHF Channel "B" for time hacks. Immediately upon determination by the aircraft commander that he has received an adequate time hack, he will return to his assigned control chatnel, All aircraft wili ranain on Channel "B" from H-3 minutes through H-Hour, (C-54 Photo aircraft only are authorized to deviate from these instructions, during the period H-5 minutes through H-Hour, if such deviations are previously agreed upon by the pilots and their controllers. ) All aircraft will switch back to assigned control channels immediately following L-Hour, In the event of malfunction of automatic tape broad~ cast, critical aircraft will be directed by BOUNDARY TARE to return to bese or to immediately depart the shot area. Manual voice broadcasts will be made by BARRYMORE if the automatic tape broadcast fails. This procedure will enable non-critical aircraft to complete their mission, TASK GROUP 7.4 OPRS ORDER NO, 2=54 ANNEX "EM", APNDX 5 E5-1 —_ anr.@ f%