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Page Title: Position Angle
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it actually is to one side, valuable time can be lost while the OOD tries to spot it. But if you say, “Periscope bearing  Tree  Fife  Ze-ro,”  the  OOD  will  have  no difficulty determining in which direction to look. Note that  the  word  “relative”  was  not  included  in  our sample report. It is understood that lookouts report only  relative  bearings. Position   Angle Position angle is the angle, measured in degrees, between the line of sight to the horizon and the line of sight to the detected aircraft. The OOD does not have time to search from the horizon (0°) to the zenith (directly  overhead—90°)  for  a  contact  reported  without a given position angle. A position angle will quickly locate the target for the OOD and the antiaircraft gun directors. Position angles should be given on all aircraft in one or two digits and spoken as a whole, not digit by digit. The reference “position angle” is always spoken before the numerals. Position Angle Spoken 0 . . . . . . . . . . . . . .   Position angle Ze-ro 5 . . . . . . . . . . . . . .   Position angle Fife 15 . . . . . . . . . . . . . . Position angle Fifteen 27  . . . . . . . . . . . . . .  Position  angle  Twenty  Sev-en 85  . . . . . . . . . . . . . . Position angle Eighty Fife 90  . . . . . . . . . . . . . .  Position angle Ninety 19

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