View Full Version : Anti-fouling gear and other questions

03-11-2005, 10:03 AM
A few points I need clearing up.

1) Why was the lower half of submarines and surface vessels painted red? It has been described as Anti-fouling gear in some books I read but why red paint?

2) How far away is the horizon at sea level? A tactic I want to perfect is to spot a convoy and skirt round it just over the horizon, get ahead of it and set up a good firing position. I just need to know how far away is the horizon?

3) Did submarine crews get light therapy on return to base? I heard that they got put under sun-lamps to boost deficiencies of being in a sub for weeks on end.

If anyone can give me some answers I would be most appreciative.

03-11-2005, 10:10 AM
My answers :

1) Rust proof paint was red (i think) They painted over this with another coat sometimes though. In actual fact the whole boat is red, and underneath it comes through when the paint peels.

2) Differs, 3 miles low to the sea, the higher you get the further you can see. The higher the thing you are looking for the further you can see it at also. Average about 12,000 yards maximum. They usually wont see you untill you are inside 4000 yards. (till the brits get their radar working http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

3) Not that i know of, in those days men were men. To the strip club and get drunk. That was their therapy http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif

03-11-2005, 10:15 AM
4000 yards..hmm...I did not realise you could get that close. So if I skip 4 miles abreast of the convoy I could theoretically dash past them without being spotted from the ships themselves. Air patrols is another matter, I know.

Thanks for the quick reply.

As for the strip bar and drinks or light therapy I know which I would head for first http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

03-11-2005, 10:31 AM
You will be able to get even closer in adverse weather conditions. Its amazing to think, but the silouette of a uboat is tiny, especially if running partly submerged. Its no bigger really then a rowing boat (the conning tower) and the rest is so low to the surface it makes spotting very difficult.

I found a website somewhere which let you work out the visual range at sea but i forget where it was, i will have a look now and post here if i find it, its pretty interesting.

03-11-2005, 11:07 AM
A human eye can see 9km from 2meters above sealevel. So I guess if you're surfaced and looking for a convoy you should be able to spot 'em when 9,2km away, at most.

03-11-2005, 11:52 AM
At one time there was a chemical in the red paint to prevent barnacles from attaching themselves to the underside of the vessel. What was discovered was that this chemical had the effect of changing the sex of whelks http://forums.ubi.com/images/smilies/blink.gif. Instead of finding both, they were all male or all female (don't remember which). The chemical was banned for use (I wanna say it was in England or somewhere around that part of the world.

03-11-2005, 12:10 PM
The deck of a liberty ship os about 30 feet over sea level (when running fully loaded), so you can see VERY far. But as mentioned before, the size of a u-boat makes spotting difficult. Try to get ahead of the convoy around lunch and shadow it on it's forward quarter (do this in the "Air Gap"). Then as dusk approaches chart an intercept course and head right down it at high speed. If you time the distances correctly you'll be able to slip past the escorts on the surface and wreak havoc on shipping with your dekc gun, or submerge just as you pass inside the "escort ring" and waste some tankers with your torps.

03-11-2005, 12:14 PM
9Km is how many miles? 4.5?

03-11-2005, 12:32 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by KaosxMeach:
9Km is how many miles? 4.5? <HR></BLOCKQUOTE> NO, 5,4.
I know that 6 miles are 10 kilometers, and calculate from this.

03-11-2005, 12:35 PM
If a liberty ship is 30 feet high that means he can see 8.5 miles to the surface.

http://img118.exs.cx/img118/25/ship5ov.jpg (http://www.imageshack.us)

If we say a U-boat is 7 metres from the surface then visual range is :

http://img118.exs.cx/img118/4521/ship28nr.jpg (http://www.imageshack.us)

10.6 miles

However the uboat is tiny so very hard to see, compared to the lib ship. These ranges are maximum visibility, when the top of the object comes into view, the whole of the object would not be in view till much closer (which means the uboat is next to impossible to spot until close range)

I had these pictures made scientifically by a graphical artist so no complaining!!! http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif hope that helps some.

Visibility at sea level (from a dingy ect) is 3 miles.

03-11-2005, 12:38 PM
I love your liberty ship. It`s like mills bomb prior to go BANG! http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif

03-11-2005, 12:41 PM
Liberty bomb!! That is the scientific representation of a liberty ship http://forums.ubi.com/groupee_common/emoticons/icon_biggrin.gif using the mighty power of Windows paint lmao