sail-world.com
 
 
News Home Cruising Photo Gallery Video Gallery
Sail-World.com : US Coast Guard resume search for Cheeki Rafiki life raft and sailors
US Coast Guard resume search for Cheeki Rafiki life raft and sailors

'Hull sighting: On Saturday, a cargo vessel, the MV Maersk Kure, spotted and photographed an overturned hull, pictured, which matched the description of the Cheeki Rafiki but reported no signs of people on board'    Maersk Kure

The British Prime Minister David Cameron has announced that the search for the four missing crew from the 40ft Cheeki Rafiki is to be resumed.

The search was initiated after a request was made by the UK government.

Previously U.S. Coast Guard Capt. Anthony Popiel, chief of response for the first Coast Guard District, explained that the US Coast Guard had ended their search after 53 hours, based on a 20 hour survival time.

A spokeswoman for the US Coast Guard confirmed to the BBC that the 'planning process' for the renewed effort to rescue the men began just after 7:30 local time (12:30 BST).

The area in which the search for the Cheeki Rafiki is believed to be focussed -    
'It'll be co-ordinated by air and sea as before but the details are still being worked out,' she told BBC News.

She said she could not at this stage say why the search had resumed. The coast guard had previously said it would only start searching again if new information came to light.

Aircraft are flying from North Carolina to the coastguard in Boston where they are expected to arrive later.

Apart from the huge pressure mounted via the 195,000 petitioners and a lot of very famous sailors, there is perhaps another reason buried in the initial Coast Guard statement.

Here is an extract of that statement: ' Seas were 15 feet with winds surpassing 50 knots. The air temperature was 59 degrees and the water was 60 degrees.

'When conducting extended searches, the U.S. Coast Guard uses a survivability model that takes into account weather conditions, emergency equipment, and the anticipated condition of the people for whom we are searching. Based on the extreme conditions at sea, but assuming best-case emergency equipment, the estimated survival time past the time of distress was approximately 20 hours. Crews searched for 53 hours.'

Its seems likely that a 20 hour survival time assumes the four British sailors were in the water, not in the 12 man life raft that the Beneteau First 40.7 Cheeki Rafiki was carrying.

Because a quick cross check with the survival charts more commonly used in the sailing community suggests that survival time assumes the four British sailors were in the water, not in the 12 man life raft that the Beneteau 40.7 Cheeki Rafiki was carrying. There have been many cases where sailors have survived in life rafts for weeks even months.

Probability of Survival Decision Aid (PSDA) Graphic User Interface (GUI) -    

The U.S. Coast Guard has mandated the use of a highly sophisticated Probability of Survival Decision Aid (PSDA) predictive model in determinations of survival times in the water and it seems likely the quite short survival time has come from that software.

A 12man liferaft in which the four crew are hoped to have boarded. -    
Now the USCG has been confronted with what the fact that time line is irrelevant if the Cheeki Rafiki four in 12 man raft?

We note that is not seriously addressed by the PSDA which does however note 10 days in a life raft as being quite possible?

Given the the long period in which the four British sailors knew the boat was in danger of sinking, its clear that they would have been wearing flotation devices and the life raft would be been on deck ready for deployment.

So now the USCG will put assets back into a search for the life raft and hopefully the four British sailors. The Australian Navy sent a warship 1300 nm to look for and find Tony Bullimore 500 nm from Antarctica, it should be possible to find closer ships in the mid-Atlantic.

We hope and pray the USCG and their searcher will be successful.

In the far less sophisticated data set, the survival time for a person in cold water is limited as indicated in the table below:

Water Temperature Exhaustion Time Death Time
(oF) (oC) (hours) (hours)
80 27 unlimited unlimited
70 - 80 21 - 27 3 - 12 3 - unlimited
60 - 70 16 - 21 2 - 7 2 - 40
50 - 60 10 - 16 1 - 2 1 - 6
40 - 50 4 - 10 0.5 - 1 1 - 3
32.5 - 40 0 - 4 0.25 - 0.5 0.5 - 1.5
32.5 0 < 15 min 15 - 45 min


For the latest story and backgrounder, including graphic of the liferaft believed to have been deployed, see the BBC report click here .

Cheeki Rafiki, a 40ft Beneteau missing in the Atlantic -  stormforce.biz  


by Rob Kothe, Sail-World.com


  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=122328

1:01 PM Tue 20 May 2014GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.







News - USA and the World

The first annual WetaFresh is a big success by Tim Wieringa, Muskegon, MI














Techno 293 Worlds - France and Italy claim titles by International Windsurfing Association,














420 World Championship - Singapore and Spain out front by 420 International Class Association,






























Lightning strikes cut short CFJ Nationals by Andy Kopetzky, Santa Monica Bay








Sevenstar Round Britain and Ireland Race sets off August 10th
PWA Fuerteventura Grand Slam - Antoine Albeau victorious on day 5
Snipe Western Hemisphere and Orient Championship headed for San Diego
WPA Championships - Kids race divisions offered
New Clever Pig launched by US Sailing
America's Cup: Group agrees to co-operate in London Meeting
Copa del Rey Mapfre - Build-up reveals some remarkable enthusiasm
Marblehead NOOD Regatta - Images by Leighton O'Connor
America's Cup: Two AC72 skippers discuss Foiling Moths and the Cup
RS Feva World Championship - Brilliant sailing on day 2
America's Cup: Alameda makes overtures on Venue hosting for San Fran *Feature
Cape Panwa Hotel Phuket Race Week 2014 - Relishing a challenge
Edgartown Race Weekend - BBBR and Round-the-Island Race winners named
Etchells Invitational Cup - Aussies take early lead in Cowes
PWA Fuerteventura Grand Slam - Antoine Albeau strikes back on day 4
Aquece Rio – International Sailing Regatta - All set for test event
ISAF World Sailing Rankings for 28 July 2014
29er World Championship - All set in Kingston
ORC World Championship - Third Course area opens for huge fleet
Day one of the Allen RS Feva World Championships
Anna Tunnicliffe: Final two days of the 2014 Reebok CrossFit Games   
Joachim Aschenbrenner takes gold at ISAF Youth Match Race Worlds 2014   
Maxi Soh scores double wins in CMRC Summer Doubleheader   
29er World Championship opening ceremonies in Confederation Park   
PWA Fuerteventura Grand Slam - Action resumes on day 3   
Land Rover Sydney Gold Coast Yacht Race Start 2014 VIDEO   
Laser Radial Men’s World Championship 2014- Final day   
2014 Pacific Cup - Scarlet Runner wins   
Gladwell's Line: America's Cup - Joint Statement is a curious note *Feature   
ISAF Youth Match Racing World Champ - Top four battle it out for final   
BIC Techno 293 Worlds 2014 - Day 6   
PWA Fuerteventura Grand Slam - Wind teases competitors on day 2   
Women’s Match Race Golfe du Morbihan - Action-packed day of racing   
Herreshoff Marine Museum announces successful fundraising campaign   
Brewin Dolphin Commodores' Cup - The most comprehensive victory yet   
Anna Tunnicliffe fourth at mid-point of 2014 Reebok CrossFit Games   
2014 29er North American Open Championship - Australians win   
INSA Sabot II Invitational Regatta - Erik Hou claims victory   
CMRC Summer Invitational Series - Maxi Soh wins Doubleheader A event   
International Moth World Championships - Nathan Outteridge wins   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph contact the photographer directly.
XLXL WAS US
LocalAds   DE  ES  FR  IT