Diving in Harbours

[emtdan]

Now you just shed a brighter light on the operation.

If you have Navy traffic in the area check with the Harbor Master and find out what the Sonar regulations are. One of those ships light it off while your in the area could ruin a very nice day.

Gary D.

Yeah, what would it sound like if a ship was using a fishfionder, or sonar above you? Would it be audible?

thanks a lot
DES

 

[sharpenu]

The announcement goes:
"There are divers working over the side. Do not rotate screws, jack main engines, cycle rudders, operate sonars, take suction from or discharge to the sea, throw anything over the side or change the condition of any underwater equipment without first contacting the diving supervisor."

Many hazards. Our ship had a 36" suction. More than large enough to capture a diver.

 

[pipedope]

The announcement goes:
"There are divers working over the side. Do not rotate screws, jack main engines, cycle rudders, operate sonars, take suction from or discharge to the sea, throw anything over the side or change the condition of any underwater equipment without first contacting the diving supervisor."

Many hazards. Our ship had a 36" suction. More than large enough to capture a diver.

More like swallow a diver.
I can turn around in a 36" pipe, work easily in a 24" and work in an 18".

 

[CGdiver]

I read through all the threads on this topic and all seem to be pretty much on point with what can go wrong in a harbor or at least what you look out for. I dive in Boston, New York and In Philis harbors quite often as the dive sup. I look out for all of these mentioned in this thread. Some other things to consider.

1. In case on emergency have a way to get the diver out of the water most of the time getting into a harbor isn’t all that hard front step water entry a wet getting out is a pain in the but. Most of the ladders are so far gone they do more harm than good.

2. Your talking about nasty water anything that you don’t want to find in the harbor don’t worry it will find you I.E Condoms Syringes, Female napkins things like that. I would recommend if not a haz-mat suit def. a dry suit.

3. I'm not sure about your water but ours is Black not brown not green but black I would recommend having people on the side I would also recommend a stand-by diver tended as well as the primary diver tended.

4. In case your don’t tend your diver use a DRS a diver recall system in case something does go wrong.

5. I believe what people are talking about under the ships in the Sea Chest suction. It’s where the ship gets its cooling water for its engines and generators. It’s scary when you come across a live sea chest but as long as you don’t panic say it does knock your reg. out make sure that secondary is right where you put it. Most ships have grating over the sea chest suction so they don’t suck up big objects you being a big object so I wouldn’t worry as much about getting sucked up more about getting your gear fouled.

6. I'm sure I could go on and on but I'll leave you with this last one and anyone can PM if they have anymore question or tell me I'm full of crap which ever you prefer. But watch the wake most channels have a no wake zone but you may not be diving a pier in a channel. I good wake up against a piling can make for a bad day. If you do get a rash wash it out completely with lots of water.

I hope this helps if not I still enjoyed writing it.
I wish they had spell check on this forum haha

 

[CGdiver]

Quote:
Originally Posted by Gary D.
Now you just shed a brighter light on the operation.

If you have Navy traffic in the area check with the Harbor Master and find out what the Sonar regulations are. One of those ships light it off while your in the area could ruin a very nice day.

Gary D.



Yeah, what would it sound like if a ship was using a fishfionder, or sonar above you? Would it be audible?

thanks a lot
DES

Just a quick one on this if you are in fear of getting pinged and or you do get pinged get as much as your upper body out of the water those sound waves from the Navy ships or even worse subs can do lots of damage. A thic neoprean hood will help your ears if its minimal.

 

[Gary D.]

Yeah, what would it sound like if a ship was using a fishfionder, or sonar above you? Would it be audible?

thanks a lot
DES

Get inline of a full power blast and you won't know it. Kind of like standing in front of Amtrac on an open streach of track.

Everything from dead to nothing can happen.

Gary D.