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JP 3-50 National Search and Rescue Manual Vol I - US Navy

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800 General<br />

810 Aircraft <strong>Search</strong>es<br />

811 Grid <strong>Search</strong>es<br />

812 Inl<strong>and</strong> Probability of Detection<br />

813 Weather Conditions<br />

814 Aerial Sightings<br />

CHAPTER 8. INLAND SAR OPERATIONS<br />

820 Air/Ground <strong>Search</strong>es<br />

821 Mountain Helicopter Considerations<br />

822 Contour <strong>Search</strong> Patterns<br />

823 Air/Ground Coordination<br />

824 <strong>Search</strong> Execution<br />

825 Recording <strong>Search</strong> Coverage<br />

826 <strong>Search</strong> Interrogation<br />

827 Wreckage Precautions<br />

830 L<strong>and</strong> SAR<br />

831 Lost Persons<br />

832 Action Plans<br />

800 GENERAL<br />

A. SAR operations unique to the inl<strong>and</strong> environment are discussed<br />

in this Chapter, while aspects common to inl<strong>and</strong> <strong>and</strong> maritime regions are<br />

discussed throughout this <strong>Manual</strong>. Inl<strong>and</strong> SAR incidents usually involve<br />

missing light aircraft or lost persons.<br />

B. For light aircraft crashes:<br />

1. About three-fourths of all crashes occur within 5 miles of a<br />

proposed course.<br />

2. Inclement weather is a factor in over 70 percent of crashes.<br />

3. Mountainous terrain is a factor in about 40 percent of<br />

crashes.<br />

4. If weather deteriorates, most pilots continue on track <strong>and</strong><br />

descend to maintain visual conditions.<br />

C. SAR procedures for lost persons are normally based on available<br />

data about individuals, environment <strong>and</strong> case histories.<br />

810 AIRCRAFT SEARCHES<br />

Aircraft searches overl<strong>and</strong> differ from maritime searching in that<br />

diverse <strong>and</strong> often changing terrain usually makes location of search<br />

objects more difficult. Repeated searches of an area are almost always<br />

necessary to attain an acceptable Cumulative Probability of Detection.<br />

Natural <strong>and</strong> man-made obstacles <strong>and</strong> turbulence in mountainous areas may

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