JP 3-50 National Search and Rescue Manual Vol I - US Navy
JP 3-50 National Search and Rescue Manual Vol I - US Navy JP 3-50 National Search and Rescue Manual Vol I - US Navy
500 Search Planning 501 Overview 502 Methods 510 Datum 511 Initial Position 512 Computation of Datum 513 Aerospace Drift 514 Maritime Drift 515 Enclosed and Coastal Waters 516 Minimax Solution 520 Search Area 521 Total Probable Error 522 Search Radius 523 Search Area Development 524 Repeated Expansion Concept 530 Search Plan Variables 531 Number of SRUs 532 Search Time Available 533 SRU Ground Speed 534 Track Spacing 535 Sweep Width 536 Coverage Factor 537 Probability of Detection 540 Search Area and SRU Assignment 541 Allocating Effort 542 Partitioning the Search Area 543 Assigning SRUs to Search Areas 550 Search Pattern Selection 551 Factors in Selection 552 Search Pattern Nomenclature 553 Search Pattern Designation 554 Search of Pattern Summary CHAPTER 5. SEARCH PLANNING 560 Planning of On Scene Coordination 561 OSC Designation 562 ATC Coordination 563 Reports 564 Search Action Plan 570 Search Planning Forms 500 SEARCH PLANNING Search planning is necessary when the location of a distress is not known, or significant time has passed since the search object's position was last known. The SMC is responsible for developing and updating an
effective search plan. The plan may involve a single SRU or many SRUs searching for several days. 501 Overview A. Search planning consists of determining datum (the most probable location of the search object, corrected for drift) and search area, developing an attainable search plan, selecting search patterns, planning on scene coordination, transmitting the search plan to OSC/SRUs, and reviewing the search plan. Many factors influence the movement of the search object. The SMC judges the impact of these factors to determine the region to search and methods to use, evaluates the number and capabilities of available SRUs, and determines whether compromise between search area size and search effectiveness is necessary. The methods described in this chapter are based on historical information and mathematical theory, and represent generally accepted techniques for search planning. Though effective tools, they do not in themselves guarantee success; that depends on planner ability and judgment, and SRU effectiveness. B. For inland cases, search area is normally dependent on the environment. Natural boundaries, injuries, and other hard-to-quantify factors affecting movement are important in search area decisions. The experience and judgment of the SMC is a key factor. For a more detailed discussion, refer to Chapter 8. 502 Methods A. Methods used in search planning depend on incident complexity and available planning capabilities. For complex incidents, sophisticated computer programs can aid in data analysis, and are preferred if initial information is incomplete or conflicting, many variables exist, or searching continues for more than one day. For less complex cases, or if computer aids are not available, a manual method can be used. B. All search planning methods use the same types of information. The manual method is presented in detail in this chapter to show the planning process. Volume II contains manual method work forms, with examples. The computations require knowledge of vectors and simple algebra. A scientific-function electronic calculator is helpful. 5-1
- Page 65 and 66: Overseas Region the Alaskan CAP Win
- Page 67 and 68: platform. Also of use for SAR are c
- Page 69 and 70: 3130.16 series. The SMC should de-a
- Page 71 and 72: continental U.S. and at offshore lo
- Page 73 and 74: the potential for recording data wi
- Page 75 and 76: other craft or radio stations: 1. A
- Page 77 and 78: EPIRBs. 9. 27.065 kHz (Citizens Ban
- Page 79 and 80: vessels) will be required to carry
- Page 81 and 82: . Non-compliance with FCC Rules and
- Page 83 and 84: 9. SART. 10. MF DSC, used to initia
- Page 85 and 86: 4. FAA Domestic Teletype Networks,
- Page 87 and 88: 3023 kHz (USB), 123.1 MHz, and 282.
- Page 89 and 90: 3. 2638 kHz, all areas. 4. 2738 kHz
- Page 91 and 92: SRUs and agencies. A search action
- Page 93 and 94: 2. Rescue Area f. SRUs on scene a.
- Page 95 and 96: extended time, a Notice to Mariners
- Page 97 and 98: The receiving and recording of info
- Page 99 and 100: case. The SMC is often automaticall
- Page 101 and 102: any source. b. There is suspicion t
- Page 103 and 104: The craft's float or flight plan is
- Page 105 and 106: Figure 4-1. Water Chill Without Ant
- Page 107 and 108: s Figure 4-2. Wind Chill Graph - Eq
- Page 109 and 110: 445 Weather A. Weather may limit SA
- Page 111 and 112: 451 Uncertainty Phase An Emergency
- Page 113 and 114: 471 PRECOM A. PRECOM search contact
- Page 115: the objective during their normal o
- Page 119 and 120: D. Other SAR planning models, such
- Page 121 and 122: 1. The aircraft glide area shown in
- Page 123 and 124: Figure 5-3. Vector Plots of Surface
- Page 125 and 126: TABLE 5-1. Parachute Drift Distance
- Page 127 and 128: the search object has, the greater
- Page 129 and 130: B. Sea Current (SC) is the residual
- Page 131 and 132: Figure 5-6A. Wind Current - North L
- Page 133 and 134: large lake can vary with season, we
- Page 135 and 136: 5. Other on scene observations can
- Page 137 and 138: 520 SEARCH AREA Figure 5-8. Minimax
- Page 139 and 140: Figure 5-9. Drift Error by Minimax
- Page 141 and 142: DRe to determine SRU error (Y = Fix
- Page 143 and 144: Figure 5-11. Search Areas - Moving
- Page 145 and 146: E. When only a datum area exists, s
- Page 147 and 148: SRUs are dispatched next. Supplemen
- Page 149 and 150: B. POD can be increased by decreasi
- Page 151 and 152: C. Visual sweep widths are determin
- Page 153 and 154: TABLE 5-6. Visual Sweep Width Estim
- Page 155 and 156: 9. Fatigue. Degradation of detectio
- Page 157 and 158: Table 5-8. Height of Eye vs. Horizo
- Page 159 and 160: 6. Sweep widths for Side-Looking Ai
- Page 161 and 162: TABLE 5-11a. Sweep Widths for Forwa
- Page 163 and 164: Sweep widths should be approximated
- Page 165 and 166: TABLE 5-14. Environmental Limitatio
effective search plan. The plan may involve a single SRU or many SRUs<br />
searching for several days.<br />
<strong>50</strong>1 Overview<br />
A. <strong>Search</strong> planning consists of determining datum (the most<br />
probable location of the search object, corrected for drift) <strong>and</strong> search<br />
area, developing an attainable search plan, selecting search patterns,<br />
planning on scene coordination, transmitting the search plan to<br />
OSC/SRUs, <strong>and</strong> reviewing the search plan. Many factors influence the<br />
movement of the search object. The SMC judges the impact of these<br />
factors to determine the region to search <strong>and</strong> methods to use, evaluates<br />
the number <strong>and</strong> capabilities of available SRUs, <strong>and</strong> determines whether<br />
compromise between search area size <strong>and</strong> search effectiveness is<br />
necessary. The methods described in this chapter are based on<br />
historical information <strong>and</strong> mathematical theory, <strong>and</strong> represent generally<br />
accepted techniques for search planning. Though effective tools, they<br />
do not in themselves guarantee success; that depends on planner ability<br />
<strong>and</strong> judgment, <strong>and</strong> SRU effectiveness.<br />
B. For inl<strong>and</strong> cases, search area is normally dependent on the<br />
environment. Natural boundaries, injuries, <strong>and</strong> other hard-to-quantify<br />
factors affecting movement are important in search area decisions. The<br />
experience <strong>and</strong> judgment of the SMC is a key factor. For a more detailed<br />
discussion, refer to Chapter 8.<br />
<strong>50</strong>2 Methods<br />
A. Methods used in search planning depend on incident complexity<br />
<strong>and</strong> available planning capabilities. For complex incidents,<br />
sophisticated computer programs can aid in data analysis, <strong>and</strong> are<br />
preferred if initial information is incomplete or conflicting, many<br />
variables exist, or searching continues for more than one day. For less<br />
complex cases, or if computer aids are not available, a manual method<br />
can be used.<br />
B. All search planning methods use the same types of information.<br />
The manual method is presented in detail in this chapter to show the<br />
planning process. <strong>Vol</strong>ume II contains manual method work forms, with<br />
examples. The computations require knowledge of vectors <strong>and</strong> simple<br />
algebra. A scientific-function electronic calculator is helpful.<br />
5-1
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