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At random: Probably the most expensive ballast ever carried by a ship was two tons of gold and eighteen tons of silver coins carried by the U.S. submarine TROUT while on a trip from Corregidor to Pearl Harbor early in World War II. TROUT had removed her moveable ballast to allow for a larger cargo of ammunition to be transported for the defenders on the embattled island. Lcdr. Fenno, TROUT's CO, planned on replacing the ballast with sand bags, but found none were available. The gold and silver from the Bank of the Philippines was substituted as ballast, which also solved the problem of removing the treasure to a safe place prior to invasion by the enemy.

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freeman

Posted 2009-07-30 7:37 PM (#29191)

Subject: mechanical diving alarm

I'm looking for information on the older mechanical diving alarm. This one was used on the Permit era boats in the 60's and 70's. I would like to find the electrical diagram/specs for the actuator windings, or the manufacturer.

Stamped into the metal is an F within a circle with what appears to be a lightening bolt.

crystal

Posted 2009-08-20 10:39 AM (#29872 - in reply to #29191)

Master and Commander

Posts: 2191

Location: Port Ludlow, WA (the Olympic Penninsula)

Subject: RE: mechanical diving alarm

Joe, these "older" diving alarms (a.k.a. klaxons) used a motor actuated diaphram (via a cog) for the vibration (sound) produced. They are/were made "mostly" by Federal Signals (probably same as your logo)... They were still making them several years back for a price tag around $1,300.00 - Hope this helps answer you question...

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