Shipwrecks


towing bit
A huge towing bit in use on a turn-of-the-century tugboat. Notice the smaller deck cleat and the steam-powered capstan in the foreground.

Wooden Ship Framing
Wooden Ship Framing

Wooden ships have been constructed for thousands of years. Around the world, many different construction techniques have been used, some of them quite extraordinary. The ancient Greeks stitched the planks of their warships together edgewise to form an extremely light frameless load-bearing shell, much like a modern airplane fuselage. However, most wooden ships are built using a basic framing system that has changed little over the centuries.


shipwreck SS Delaware engine

Steam Engines

Steam engines are a common sight on New Jersey shipwrecks. Usually the highest point of relief on the entire wreck, the engine makes a good orientation point and is often used as a tie-in as well. Old steam engines were quite sturdily constructed, and last a long time in the ocean, although because of their value they were salvaged when possible.

Right: The single-expansion steam engine of the Delaware, viewed over the top of one of the four boilers.


lightship mast
lightship mast

Possibly the most preposterous artifact that has ever been recovered is one of the masts from the Lightship Relief. Over 50 ft long and weighing some 6000 pounds, the mast was recovered by divers in 1976 and set up in front of a dive shop in Laurence Harbor. ( It was called "Diver's Cove". )

The dive shop has long since closed, and the huge mast now lies off to the side, a rusting eyesore. The present owner of the property claims it is a registered historic landmark. Apparently not so - as of March 2008 it was hauled away as garbage. Better that it had just been left in the sea, but this is the fate of many divers' "artifacts."


Scotch boiler ( cutaway )
A typical Scotch boiler ( cutaway )

Boilers are one of the most common shipwreck features, found on almost all engine-powered vessels. The purpose of a boiler is to produce high-pressure steam for the engine to propel the vessel. Steam boilers have been in use from the early 1800s to the present day.


steam-powered winch
A steam-powered winch on a schooner barge. Note the various drums for drawing up anchor chain, towing hawsers, etc, and the anchor chains themselves going down through the deck into the chain locker below.

Prior to steam power, the only force available on a sailing ship to perform all the necessary work was the men on board. For some tasks, such as raising the anchor, it might be necessary to yoke the entire crew to a multi-deck manual capstan. On the largest vessels, even with every available man, this might take several hours to complete. With the advent of steam power, a "donkey engine" and a single engineer could do the work of many men, in less time, and these were soon installed in almost all vessels.


Seasickness is the bane of all scuba divers. Here are a number of preventatives:

Chinese Medicine - pressure points in the wrist that are supposed to relieve the effects of seasickness. I don't believe it.

Dramamine - to be effective, this must be taken the night before, as well as again in the morning. It is not effective on all people, and some actually get worse. There is no harm in doubling the dose if you are very worried.