u12 - AWOIS 7509

FE312SS/88 -- OPR-C121-WH-88; WHILE SEARCHING FOR AWOIS ITEM 1634, TWO SIDE-SCAN SONAR CONTACTS WERE LOCATED AND IDENTIFIED AS WRECKAGE (ALSO REFERENCE ITEM 7508); AN OBSTRUCTION (SSS CONTACT NO. 379.6S) WAS FOUND; DIVER LEAST DEPTH OF 36 FT. IN PRESENT SURVEY DEPTHS OF 38 FT.; REMAINS OF A PORTION OF A KEEL OF A METAL HULLED VESSEL; VESSEL WAS LYING INVERTED WITH THE KEEL EXPOSED; PORTION OF MIDSECTION OF VESSEL WAS VISIBLE; ENTIRE STRUCTURE WAS COATED WITH ANTI-FOULING PAINT; 45 FT. WIDE AT THE BEAM, 37 FT. AT THE NORTHERN END AND 18 FT. LONG; SOUTHERN END OF SITE WAS BENT AND TWISTED; HULL STOOD APPROXIMATELY 3 FT. OFF THE BOTTOM AT THE NORTHERN END, AND A SAND SCOUR AT THE SOUTHERN END EXPOSED APPROXIMATELY 6-8 FT. OF THE WRECK (3-4 FT. BELOW THE SURROUNDING BOTTOM). (ENTERED MSM 10/89)

H10668/97 -- OPR-C399-RU; 200% SIDE SCAN SONAR SEARCH LOCATED ONE SIGNIFICANT CONTACT. SWMB LD OF 11.0 METERS (36 FEET). EVALUATOR RECOMMENDS DELETING THE CHARTED 39 AND 36-FOOT OBSTRUCTIONS AND CHARTING A 36 OBSTN AS SURVEYED. (UP 12/22/04, SJV)


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Having acquired all your nice expensive equipment, you may want to insure it against damage and flooding. Alright, perhaps not a cheap film camera, but a high-end housed 35mm, digital, or video camera certainly deserves the protection. On the other hand, with proper care and maintenance, and attention to detail when sealing it up, a modern camera housing is extremely unlikely to leak.

Here's something I learned the hard way:

Batteries + saltwater = one really nasty corrosive mess. Regular old alkalines are not nearly as destructive when you get them wet. What does this mean? Use NiMH batteries in the camera inside the housing, but use alkalines inside your strobes, so that if the battery compartment does flood, you can just rinse it out with fresh water and maybe lemon juice. The result of a wet NiMH battery will eat away the metal contacts of the battery compartment so fast that by the time you can do anything about it, it's too late. Alkaline batteries have plenty of oomph to drive a strobe, although not a camera. If your camera housing floods, the battery type won't really matter, since the saltwater will destroy the camera all by itself.