salvaging ships propellers

[Russjstewart]

Self-study? Here's the manual and the handy reference card. You're on your own for the supplies.

Tempting to open, but is big brother watching? How keen am I on a knock on the door at 3 am

 

[Jared0425]

Tempting to open, but is big brother watching? How keen am I on a knock on the door at 3 am

There's a relatively simple application process to use them. However your local natural resources department will add hurdles to use of explosives for work underwater. Had a wrecked tug that got stuck in the rock crevices off Port Austin on Lake Huron and our DNR denied the permit due to the fish possibly being killed in large numbers. Unfortunately a lot of money was lost and that tug is still there.

 

[lowwall]

Tempting to open, but is big brother watching? How keen am I on a knock on the door at 3 am

The US Army had declared these (older) versions "APPROVED FOR PUBLIC RELEASE; DISTRIBUTION IS UNLIMITED".

Most US government publications - including these - are also copyright-free and thus can be legally distributed and republished.

Edited with more detail

 

[Russjstewart]

These are freely available. Most US government publications - including these - are copyright-free and thus can be legally distributed and republished.

Thanks

 

[Celt]

This is one that was found accidentally in the St. Clair River. Decided to polish it up and make it as memorial to lost sailors of the 1913 storm.

View attachment 743408

Nice idea, it doesn't look damaged so she probably through the blade, ships carried spare blades in case one was damaged or lost. We took 8 blades of a 3 blade twin screw steamer. Each blade weighed 2 ton.

 

[Jared0425]

Nice idea, it doesn't look damaged so she probably through the blade, ships carried spare blades in case one was damaged or lost. We took 8 blades of a 3 blade twin screw steamer. Each blade weighed 2 ton.

Where it was found, we think it belonged to the Sidney Smith which sank in a collision in 1972. It is probably her spare bucket kept on the fantail. She was damaged enough, that she is now a breakwall because they couldn't even refloat her.