The red Stuff - Red "anti- foul"?

[david h]

Dear all,

Couple of questions for those in the know.

Why is the underside of most nukes painted red?

Do propeller shafts on Nuke boats leak? Are they totally waterproof. How often do they check them? Is it a constant problem or do they pretty much have the problem "licked."

Call me nerdy but i'm really interested in the technology behind keeping the big boats free of water.

[robse]

Hi David H

I have a

[color=#000000]Hi David H

I have a theory on the red buttom paint]



Edited By Robse on 1053609400

[anonymous]

Hi guy's
Not sure about

Hi guy's
Not sure about the shafts on the nukes but the Collins class has a packing gland and yes it does leak. One of the engineers was telling me that on a deep dive test, it leaked at the very scientific rate of 6 buckets a minute which is a lot of water. Not sure if this was a successful test or a failure.
Keith

[anonymous]

G'day everyone
I would just

G'day everyone
I would just like to let you all know that I have finished my type VIIC and has successfuly sailed it's first run at the pond. You can see the photo's at my web site at the given URL. I would just like to thank Albert Johnson and Tim Smalley for there advice and help.Without there help, I could not have done it. Thanks guy's. Also,thanks to the many others who gave up there time to help me out in many ways on the message boards.
Keith Willans



Mt type VIIC's first day at the pond



Edited By TypeVIIC on 1053616083

[uss silversides]

David H-

If you are still

David H-

If you are still wondering about how the shafts are sealed on real boats, I read that they use pressurized water to keep the sea water out. So there is always some water in the bilges.

May I ask another question here? In the same book, it says]http://www.subcommittee.com/forum/icon_question.gif[/img]

Jon



Edited By USS Silversides on 1077482860

[adriaticsea]

Hi Uss Silversides,

about your question

[color=#000000]Hi Uss Silversides,

about your question on the thrust bearing]



Edited By AdriaticSea on 1077547418

[uss silversides]

Thanks Adriatic-
The book kinda makes

Thanks Adriatic-
The book kinda makes it sound like the prop does very little at all. Or maybe that's just my problem