Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 03-06-2011, 11:57   #106
Paul Elliott's Avatar

Cruisers Forum Supporter

Join Date: Sep 2006
Posts: 4,220
Images: 4
Re: Rogue Wave Swamps Cruising Yacht

Steve, the PLBs put out exactly the same signal as an EPIRB. If an EPIRB gets detected, so will a PLB. Note that the PLB has to be put in the proper orientation, while the EPIRB is designed to float with the antenna pointing in the right direction (up). There are two types of satellite used to detect EPIRB/PLB signals: geostationary ones that cover between 70N to 70S latitude, and low-earth polar orbit satellites that fill in the gaps over the poles, so there is full coverage of the globe.

For what it's worth I once had a PLB false-trigger while it was belowdecks, and it was almost certainly not properly orientated. It was detected, and I got a call on my satphone from the Coast Guard.

The primary issue is how long the PLB will transmit before draining its (smaller) battery. If you will be a long way from outside assistance you might choose the EPIRB (48 hours minimum, 65 hours typical), over the PLB (24 hours min, 35 hours typ).

If you are likely to be rescued within 24 hours then the PLB battery life won't be an issue. If you carry multiple EPIRBS or PLBs when one dies you can trigger another.

Even if your PLB battery croaks before you are rescued, by that time the SAR guys will have have your position and drift, so they will at least have a reasonable search area. Having a working transmitter will make the search much more likely to succeed though.

I'm not a SAR expert, although I have read the gear specs and talked to some USCG people about the process. I would take anything I read here with a grain of salt and do your own research before making a critical decision.

Paul Elliott, S/V VALIS - Pacific Seacraft 44 #16 - Friday Harbor, WA
Paul Elliott is offline   Reply With Quote

cruising, rogue wave, yacht

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
New Science - Rogue Wave Prediction avb3 Off Topic Forum 11 20-09-2010 03:54
Rogue Wave johnar Off Topic Forum 28 14-04-2010 06:14
Rogue Wave Kills Two On Cruise Ship capcook Cruising News & Events 22 06-03-2010 10:18
Rogue Wave TritonSailor Seamanship & Boat Handling 49 12-09-2009 23:28
Rogue wave in mid-coast Maine Dr. C. Off Topic Forum 5 05-11-2008 16:37

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:43.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.