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
Two green By pararescue ............ Survivor ready for pickup as arranged. By SRU ................... I have sighted survivors. One green every 5 to 10 minutes By SRU ................... Request distressed crew fire red pyro (interval halved when red pyro sighted). Succession of green By aircraft .............. Have urgent message to transmit. One white By aircraft .............. Submarine is below me. By ship .................. Man overboard. By pararescue ............ Ready for flotation kit or aero-kite drop. Two white By pararescue ............ Ready for MA-1 kit drop. Two whites, 3 minutes apart By submarine ............. Am surfacing, keep clear. Series of whites, 10 seconds apart By ship or aircraft ...... Alter your heading to avoid restricted area. One white, one green By pararescue ............ Ready for raft drop. One white, one red By pararescue ............ Flotation device damaged, drop another. Two white, one green By SAR aircraft .......... Rescue successful. Two white, one red By SAR aircraft .......... Rescue unsuccessful. One yellow By submarine ............. Ascending to periscope depth. 3. The following smoke signals have specific meanings: Orange smoke ............. I am in distress and require immediate assistance. Red smoke By submarine ............. Attempting emergency surfacing, keep clear. Two orange smokes, few seconds apart By SAR aircraft .......... I have survivors in sight. Two white or two yellow, 3 seconds apart By submarine ............. Am surfacing, keep clear.
Black or white smoke bursts, 10 seconds apart By ship .................. Alter your heading to avoid restricted area. 4. A surface-to-air visual code for use by survivors is shown in Figure C-1. IMO/ICAO Message Visual Signals Require Assistance V Require Medical Assistance X No or Negative N Yes or Affirmative Y Proceeding in this direction /|\ | Figure C-1. Surface-Air Visual Signal for Use by Survivors B. ELECTRONIC DISTRESS SIGNALS 1. Radiotelegraph. a. The group "SOS" in the Morse code. b. The radiotelegraph alarm signal, which is designed to actuate the radiotelegraph auto-alarms of vessels so fitted. The signal consists of a series of 12 dashes sent in 1 minute, the duration of each dash being 4 seconds, and the duration of the interval between 2 consecutive dashes being 1 second. C-2
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Black or white smoke bursts, 10 seconds apart<br />
By ship .................. Alter your heading to avoid restricted area.<br />
4. A surface-to-air visual code for use by survivors is shown in<br />
Figure C-1.<br />
IMO/ICAO<br />
Message Visual Signals<br />
Require Assistance V<br />
Require Medical Assistance X<br />
No or Negative N<br />
Yes or Affirmative Y<br />
Proceeding in this direction /|\<br />
|<br />
Figure C-1. Surface-Air Visual Signal for Use by Survivors<br />
B. ELECTRONIC DISTRESS SIGNALS<br />
1. Radiotelegraph.<br />
a. The group "SOS" in the Morse code.<br />
b. The radiotelegraph alarm signal, which is designed to<br />
actuate the radiotelegraph auto-alarms of vessels so fitted.<br />
The signal consists of a series of 12 dashes sent in 1 minute,<br />
the duration of each dash being 4 seconds, <strong>and</strong> the duration of<br />
the interval between 2 consecutive dashes being 1 second.<br />
C-2
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