Tuesday, December 20, 2011

Pacific Vortex: Mayday signal and more

pg 42

"A ship would have to go down in seconds not to transmit a mayday signal."
Mayday is an emergency procedure word used internationally as a distress signal in voice procedure radio communications. It derives from the French venez m'aider, meaning "come help me".

It is used to signal a life-threatening emergency primarily by mariners and aviators but in some countries local organisations such as police forces, firefighters, and transportation organizations may also use the term. The call is always given three times in a row ("Mayday Mayday Mayday") to prevent mistaking it for some similar-sounding phrase under noisy conditions, and to distinguish an actual Mayday call from a message about a Mayday call.

"If they locate the remains, their salvage ships won't require an act of God to raise her from ten fathoms."
Act of God is a legal term for events outside of human control, such as sudden floods or other natural disasters, for which no one can be held responsible.

In the law of contracts, an act of God may be interpreted as an implied defence under the rule of impossibility or impracticability. If so, the promise is discharged because of unforeseen occurrences, which were unavoidable and would result in insurmountable delay, expense, or other material breach.

For example, suppose an opera singer and a concert hall have a contract. The singer promises to appear and perform at a certain time on a certain date. The hall promises to have the stage and audio equipment ready for her. However, a tornado destroys the hall a month before the concert is to take place. Of course, the hall is not responsible for the tornado. It may be impossible for the hall to rebuild in time to keep its promise. On the other hand, it may be possible but extraordinarily expensive to reconstruct on such short notice. The hall would argue that the tornado was an act of God and excuses its nonperformance via impossibility or impracticability.

In other contracts, such as indemnification, an act of God may be no excuse, and in fact may be the central risk assumed by the promisor—e.g., flood insurance or crop insurance—the only variables being the timing and extent of the damage. In many cases, failure by way of ignoring obvious risks due to "natural phenomena" will not be sufficient to excuse performance of the obligation, even if the events are relatively rare: e.g., the year 2000 problem in computers. Under the Uniform Commercial Code, 2-615, failure to deliver goods sold may be excused by an "act of God" if the absence of such act was a "basic assumption" of the contract, but has made the delivery "commercially impracticable".

Recently, human activities have been claimed to be the root causes of events until now considered natural disasters. In particular:

* water pressure in dams releasing geological fault (earthquake in China)
* geothermal injections of water provoking earthquakes (Zurich, Switzerland, 2003—currently on trial)
* drilling provoking mud volcano (Java, ongoing)

Such events are possibly threatening the legal status of Acts of God and may establish liabilities where none existed until now.

"They Navy raised the submarine F-4 from sixty fathoms right here off Oahu...back in 1915."
USS F-4 (SS-23) was a F-class submarine. Her keel was laid down by the Moran Brothers Company of Seattle, Washington. She was originally named Skate, making her the first ship of the United States Navy named for the skate. She was renamed F-4 on 17 November 1911. She was launched on 6 January 1912 sponsored by Mrs. M.F. Backus; and commissioned on 3 May 1913, Lieutenant (junior grade) K.H. Donavin in command.

Service history
Joining the First Submarine Group, Pacific Torpedo Flotilla, F-4 participated in the development operations of that group along the west coast, and from August 1914, in Hawaiian waters. During submarine maneuvers off Honolulu, Hawaii on 25 March 1915, she sank at a depth of 306 ft (93 m), 1.5 mi (2.4 km) from the harbor. Despite valorous efforts of naval authorities at Honolulu to locate the missing boat and save her crew, all 21 perished. F-4 was the first commissioned submarine of the U.S. Navy to be lost at sea.

A diving and engineering precedent was established with the Navy's raising of the submarine on 29 August 1915. Courage and tenacity marked the efforts of divers who descended to attach cables to tow the boat into shallow water, while ingenuity and engineering skill characterized the direction of Naval Constructor J.A. Furer, Rear Admiral C.B.T. Moore, and Lieutenant C. Smith who accomplished the feat with the aid of specially devised and constructed pontoons. Navy diver George D Stillson found the superstructure caved in and the hull filled with water.[1] Only four of the dead could be identified; the 17 others were buried in Arlington National Cemetery.[2]

The investigating board subsequently conjectured that corrosion of the lead lining of the battery tank had permitted seepage of sea water into the battery compartment and thereby caused the commanding officer to lose control on a submerged run. Others believe that the bypassing of an unreliable magnetic reducer closed a Kingston valve in the forward ballast tank resulting in a delay.[3] Based on other reported issues, there many also have been problems with the air lines supplying the ballast tank.[3]

F-4 was stricken from the Naval Vessel Register on 31 August 1915.

In 1940, the remains of F-4 were buried as fill in a trench off the Submarine Base, Pearl Harbor.

http://www.oneternalpatrol.com/uss-f-4-23.htm (Names and photos of the men lost.)

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