Sea Transporter YF-879

YF-879 - March 1975
Type:
artificial reef, trawler, USA
Specs:
( 133 x 30 ft )
Built:
1945, American Bridge, Ambridge PA, as YF-879
Sponsor:
Cape May County Party & Charter Boat Association, Atlantic Cape Fisheries, Artificial Reef Association
Sunk:
Friday August 21, 1992 - Cape May Artificial Reef
GPS:
38°53.118' -74°40.190'
Depth:
70 ft
Sea Transporter - October 1975

YF-879 was sold by the Navy in 1974 and became marine survey ship Sea Transporter. By 1977 the vessel had been moved from southern California to Port Arthur Texas for a government study in the Gulf of Mexico, which was published in 1979. For the survey, Sea Transporter was equipped with side-scan sonar and underwater video cameras. Later the vessel was converted to commercial fishing, and finished its days in New Jersey. Exactly how it was modified for fishing is unclear, although it appears a deckhouse was added over the cargo hold.

YF-852 class covered lighter (self-propelled)

  • Displacement: 300 t.(lt) 650 t.(fl)
  • Length: 133'
  • Beam: 30'
  • Draft: 9'
  • Speed: 10 kts
  • Armament: none
  • Complement: one officer, ten enlisted
  • Propulsion: 2x 500hp diesel, twin screws

A large number of these small freighters were built during World War II, with slight variations to the design.

568087


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waves

Ocean waves are created by wind ( in unique instances, waves may also be created by earthquake, landslide, or other major disturbance, but that does not concern us here. ) The factors in the mechanics of wave creation are wind speed and duration, and fetch.

Fetch is the distance over which the wind acts on the water. The longer the fetch, the greater the wave-building action. Similarly, the greater the wind speed, the greater the wave-building action. Winds are named for the direction they blow from, not to. Therefore, a west wind blows out of the west, toward the east. Predicting wave heights based on wind conditions is even today extremely imprecise - the weather service still gets it wrong about half the time.