Test Director's Operation Order No. 1-53 (Upshot/Knothole), Cover Sheet No. 12 (Encl; Ax N - Special Instructions with Appendixes I, II, III, IV) (Grable Event)

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NEVADA PROVING GROUNDS RG 326 US ATOMIC ENERGY. OPERATION ORDER NO. 1-53 (UPSHOT/KNOTHOLE) COVER SHEET NO. CONFIRMED TO BE UNCLASSIFIED

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OPERATION ORDER WO. 1-53 (UPSTIOT/kITOTHOLE^ TABLE OF CONTENTS PAGE Operation Order No. 1-55 (Upshot^Cnothole) 5 Appendix I - Registered Photographic Groups, Storage D-I-l and Issue Points, and Processing Points * Will be issued at a later date

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OPERATION ORDER NO. 1-53 (UPSHOT/KNOTHOLE) _ . ai The tenth shot (GRABLE) of. the UPSHOT/RNOTHOLE series Will be fired from the 280 mm gun, the projectile being set to detonate at j>00 feet above b. All'times referred to in this operational annex are based upon Ihclfic Daylight Time, i.e. pacific Standard Time plus one hour. c. The timing signal schedule Is As followsi d. Appendices to this Annex arei aT After H-Hour, on D-Day, test personnel will enter the test area by way of the Rad-Safe Plotting and Briefing Station at the junction of the Mercury Highway and the Frenchman Flat Road. Entry parties must make advance arrangements through their Program Monitors and the On-Site Operations Office and obtain Rad-Safe access clearances issued in accordance with the T^st Di dated 9 March 1953* These access clearances will be honored in accordance with the Schedule of Events for GRABLE. b. A temporary Rad-Safe processing station will be located at Gate #2 for recovery parties who enter the Frenchman Flat Test Area from Camp Mer cury. Advance arrangements must be made by Program Officers so that sched uled parties can enter the test area from the South. These prior arrange ments will assure that badges, dosimeters, and protective clothing can be obtained from the - temporary Rad-Safe processing station at Gate #2. o. As soon as possible, after the Mercury Highway has been declared to be free of radiological contamination, the temporary Rad-Safe processing sta tion located at Gate #2 will move adjacent to the Plotting and Briefing Sta tion at the Mercury Highway-Frenchman Flat Road Junction. d. Recovery parties entering the test area and originating from the CP will process through the Rad-Safe Building adjacent to the CP. e. All recovery parties who are'listed in the Schedule of Events for GRABLE will make advance arrangements through their Program Monitors and the Rad-Safe On-Site Operations Office for entry into the test area on D-Day.

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tf Fad-3afe Area Access Forms for the Frenchman Flat Teat Area may fce obtained at the Rad«5afe Bullying and at the Gate #2 processing point which, In order for these access forms to be effective and thereby, jpeymit entry '• into the te t area, they must be eountersighed at the and Briefing g* All personnel and vehicle decontamination will be performed at the Rad-Safe Building* Portable decontamination equipment wilt be located near the Plotting and Briefing Station for emergency use on highly contaminated Highway-Frenchman Flat Road Junction will be in operation. Security patrols will b? stationed so as to prohibit entrance to the Frenchman Flat Test Afea 1* Should radiological Contamination of the .Frenchman Flat Test Area man Flat Road will be open from 0800 to I800 daily* Entry at other hours may be arranged with the Rad-Safe On-Site Operations Off 164, telephone 6263 or 8264 prior to 1700, and 8361 after 1700 daily* ^ 3# IERSOKNEL SAFETY CONTROL closed fran *4 miles South of the water tanks (Security Point F-5) to Security Point F-4* Entrance to this road will be determined ty an access list which will be controlled by rhe Tost Director's Flans & Operations Section* Only those persons whose work is imperative between Security Points F-4 and F-5 will be placed on the access list* b* By 1100 on D-l Day, Prograni Directors will furnish to Plahis & Oper ations the names of all persona who will be at approved manned, stations at H-Hour* Confirmation of communications and safety measures tot these sta tions will also be furnished at this time* names of all persons passing into the test area through this point* Other roads leading into the test area Of Frenchman Flat will be clo$ed by Security d* At H-6 hours (0230) Security Patrols will cheek the entire tost area, e* At H-3 1/2 hours (Q500) all persons except those at approved manned stations will be out of the entire Frenchman Flat Area that is bound on the Vest ty the Mercury Highway and on the South by an EastAfest line through Security Xbittt F-4* At this time the Chief of the Security Branch will re port to the Tsst Manager that the above area la clear of all personnel ex cept those at the approved manned stations, f* At H-2 hours (0630) the Mercury Highway will be closed to all traffic except the Test Manager's Visitors Bureau Convoy, the Desert Rock Convoy, the Camp Mercury Personnel Bus Convoy, and personnel going to approved manned stations* Closing of the Mercury Highway will be effected at Gate #2 and at g* At H-l hour (0730) all persons will be at approved manned stations, the authorized observation points,' the Desert Rock entrenchment area, the ATU gun position, or at the CP Area* The Chief of the Security Branch will again report to the Test Manager that the entire Frenchman Flat Area la clear of all parsons except at the above listed authorized positions* Gate $2 will be dosed to all Northbound traffic*

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h* At H-Hour all personnel will be at one of the following locations) u (U) Desert Hock entrenchment areai (6) Essential Security dheck point positions* li Approved manned stations for GRABLE aret; 1 Station Coordinates * Communications IML #3 876-736 IML Net IML & 843-878 (CP) LML Net Control j* As soon as possible after H-Hour, Security Dpint F^l will go forward, in oonjunction with the Pad-Safe initial survey team* to their security posi tion on the Frenchman Flat.Poad. and* if possible, will remaitii in operation on the Frenchman Flat Poad* Security Ibints F«2 and F-3 will oped the Mercury Highway to normal traffic only when directed to do 6d by the Test Di k* Other Security Patrols, as determined necessary by the Chief of the Security Branch, will be put into operation to prevent any persons from . entering the Frenchman Flat Test Area, except as authorized through the PadSafe Plotting and Briefing Station on the main Frenchman Flat Pbad* 4* EXECUTION OR POSTPONEMENT ORDER a. At 1430 on D-l, the Test Manager, Test Director, and Te&t Gdoup Directors will confer with the Weather Officer to determine whether or not the forecast weather conditions will be favorable for the firing of the gun as scheduled* An execution or postponement order will be given as a result b* Due to unforeseen circumstances, it is possible that the firing of the gun may have to be postponed if weather or other conditions so dictate, c* At 2200 on D-l, the Weather Briefing will be held at the CP* Attend ance is limited to a published access list* The Test Manager, assisted by the Test Director, Advisory Panel, and Staff Members, will decide whether or not the gun will be fired as scheduled* No motors, radio transmitters4 or other devices which may cause radio interference will be in operation between H-15 and HA5 minutes. Exceptions are transmitters using frequencies authorized in Appendix III and motors es sential to the operation of approved projects or test activities*

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Xlectrical power will be controlled as followsi D-Day 0001 Split power at main power station - Mercury* D-Day Efi mine Turn on water pumps. a. Test Group Directors will keep the Test Director informed of the status of their respective programs as that status pertains to GRABLE. b. At 1430 on D-l all Test Group Directors will make a final report of the readiness status of their program to the Test Director. This report will include considerations for the Execution or postponement of the shot. c« At the 2200 Weather Briefing on D-lv Test Group Directors will be prepared to report what serious effects a postponement Would have should a d. Test Group Directors will give preliminary results of GRABLE to the ?3st Director as soon as possible after the detonation.

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OPBRATIOH ORDER MO. 1.53 (UPSHOT/xHOTHOLE) ANNEX "N SPECIAL INSTRUCTIONS, GRABLE ITEM NO. HOUR UNIT EVENT 1 0800 Rad-Safe, STIC One C-47 or C-45 will b e on call at ISAFB for twf> days for Rad . Safe miiflions. 2 0800 3.18 Three men will collect calibration ftizes from minefield 600 ft* from GZ. Estimated 3 0830 Test Groups Group directors will report to Test Director on readiness status of their programsin cluding considerationfc for go-no-go. anticipate entering contaminated areas on D Day must have made complete arrangements 6 0900 Security The pipe line road will be closed from .4 miles south of the water tanks to Security to this road will be limited by access EGc£ Last timing signal dry run (zero signal 8 1330 1.2 Crew will load rockets along rocket line in Area F. Loading to be completed by Test Manager and Test Director will confer with Staff !.7eather Officer. Conference will be followed by "Execute" or postpone 10 1600 Microbarograph Crew will arm explosives to be fired at miles North of GZ. 11 1700 3.20 Five men will lay surface wires and cables from pole line 500 feet north of GZ to a point 950 feet south of GZ. Approximate time in area: 4 hrs. 12 1800 Security Final security air sweep of the NFG area. Weather briefing and meeting with Advisory 14 2400 Security Security point F-l will begin logging all persons passing this stations. All other roads into the Frenchman Lake area will 15 2400 3.7 and 3.8 Three persons will go to structures 3.7a and 3.8a, b, and c to remove the seals on ducts, remove covers on entryvTays, and secure the structures. Approximate time

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HOUR . UNIT EVENT 2400 8*4 Three men 'ffill go to the smoke line to remove covers from instruments and make last minute check* Time in area: Until

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SCHEDULE OF EVEHTS ITEM HO. HOUR UNIT EVENT line to remove paper coverings from trays of test materials. Working time: approx. 8.5 Fifteen men will place test animals in position. Estimated time in area: 3 hr. 8.12a Eight men will go to Station F-228 to prepare instruments and make last minute check of blast line instrumentation. Estimated time in area: 3 hrs. 4 H-6 hr 4.2 Twelve persons in three vehicles will enter target area and place animals and instru ments at stations :G40 to 1500 feet from O^Z. Estimated time in area: 1 hr. 5 H-6 hr All • Final sweep of area by security patrols. 6 B-6 hr 8.1 Sixteen men will go to project stations to make final adjustment of equipment. 1.1a Six men will go to smoke line and mine . t. field line to remove gage tape and make final inspection. Working timei 2 hrs. 1.1b Three men will go to main blast line and to 3,1 structures to pull tapes. Working 3.6 Four persons will go to the DE LofcOmotive 35001 west of GZ and remain not later than 8.11b Two persons will go to stations along thermal line to remove paper coverings from trays of test materials. Working time: Not more than 2 hrs. 6.7 Three men will go to station F-227 to turn on equipment, thence to station 6.7b (10 miles HW of GZ") to operate as a maimed 12 H-5 hr 23 Six men will enter test area to place bio logical specimens in shelters. Estimated IS H-5 hr 4.B Two teams of three persons each will enter area and place biological specir. .ns, 14 3-4 hr 7.1 Two men will go to station 7.1a (SE corner of Yucca Lake) to check out equipment and operate as a manned station through shot 15 H-4 hr ATU Convoy will depart Bldg. 10 and proceed to gun position via Mercury Highway - Pump operate as a manned station through shot

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ITEM NO • HOUR 8*2 Six men will man vans located 2 miles M of Ranger CP to obtain radiation pressure measurements and receive telemetered info* 6*12 Nine men will enter area of station 6.12o (10 miles NH of GZ) and turn on batteries in outpost stations within 2 miles of cen tral station. All personnel will remain at the -6.12c stations through shot time.' All persons except those at approved manned stations will be out of the Frenchman Flat area North of F-4 and East of Hercury Twelve men will proceed to station 6.13c (7 miles W of GZ; and remain through shot First Desert Rock convoy will pass gate One B-50 will depart ISAFB to release 5 Four persons will enter target area to man telemeter receiver trailer located 4^ miles First of a series of three warm-up rounds (fired at 12 minute intervals) will be The firing of 7 high burst rounds will commence. These rounds will be fired at 12 minute intervals (approximately) and continue until H-l hr and 10 min. Hercury highway will be closed to traffic at Gate $2 and F-2. HE charge of 2400 lbs will be detonated Lookout Mountain Laboratory personnel will man 6 stations through the shot as follows: 5 persons and 1 vehicle at Sta. (928-622. 6 persons and 1 vehicle at Sta. ,,-2(916-626) 2 persons and 2 vehicles at Sta,#3(876-736/ 2 persons and 2 vehicles at Sta.;,','4(899-790] 1 person and 1 vehicle at Sta. #5 (843-378^ 2 persons and 1 vehicle at Sta. v6(922-652. Two men will go to station 6,2a (TIest of CP near Repeater Station) and remain thru Last Desert Rock convoy will pass Gate #2. One B—47 will depart TLkFB to release 5 Two QF80 drone aircraft, accompanied by fighters, will depart ISAFB.

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Loud speaker announcement that it is hair cal equipment -will he turned off, including Security will report to Test Manager that the shot area is clear of personnel except in approved manned stations* ABC Observers AEG official and technical ohserverc arrfve at their observation point* Microbarograph Second HE charge of 2400 lbs will be de* Desert Rock All Desert Rock troops, observers, and VIP's will be at trench area (Coordinates (911LML One C-47 will depart ISAFB and orbit 10 miles south of GZ at 10,000 ft MSL to per form documentary photography mission* Operation Officer informs Timing and .Firing Projectile will be loaded into gun* One B-50 (Skull Cap) will depart ISAFB to Siren on the CP Bldg, will be turned on Red lights on top of CP Bldg, will be turne. Propellant charge will be loaded into gun and the laying of the gun will be* completed Loud speaker announcement that it is now H hr minus 5 minutes. All persons without density goggles will be warned to turn their backs to the b]a st and not turn around until 4 seconds after initial flash. Nine F-84,s will depart ISAFB for cloud ATU Commadder will notify Test Director that the gun is ready and will close firinf PA announcement of H-l mindte and reminder to put on …