Carrier Question

[Imagegear]

Having just watched a video discussing Sterling engines and the Gotland Class of submarines, I noticed this unusual offset bow wave on the Carrier at the 10:55 point. (Almost at the end)

Gotland Sub


https://cimg1.ibsrv.net/gimg/pprune.org-vbulletin/510x673/bow_wave_7660206eb97234c85623433421b0fc4de443e8fc.jpg

Anyone care to comment ?

Mods - please move if appropriate.

IG

[sunnybunny]

may be an outlet pipe or hose dumping water over the side?

If it was a periscope I would expect water to be thrown forward as well as sideways.

I have seen images from a perisope between a frigate propellors but I don't think a skipper would risk his boat that close to the bow.

Not sure what the underwater speed of the sub is but the carrier seems to be cracking on.

[piperpa46]

When it pans round, right at 10:57, just before the scene change, you can see it's water being discharged from up high on the bow.
​​bow.
​​​​​​

[piperpa46]

https://cimg7.ibsrv.net/gimg/pprune.org-vbulletin/1189x669/18904984_hess_87c6b87036f6e111f8ad67e5b6457d9b66b4d716.jpg
You can see a similar affect on this platform, from the various discharges.

[rattman]

Thats USS america, guessing it some form of testing / acceptance trial. If you go .25 playback or frame by frame you can see what looks to be high pressure discharge as mentioned by above poster

[Imagegear]

Yup, can see it now - just looks a little odd so far up and not the Anchor flat.

IG

[Hot 'n' High]

Imagegear, absolutely no idea what it is but it seems fairly constant judging by this link:-

https://www.youtube.com/watch?v=WKDyvjek0BY - well, at least while this sequence was recorded. Your clip appears to the same as the 0:25 - 0:28 point in my link and, at 0:14, the flow appears to stop for a second or so. Rest of the time it seems fairly constant. Someone swabbing something down? They do whatever "swabbing" is in the Navy I understand!!

https://youtu.be/y14IQNYObpY :ok:

As I say, absolutely no idea what is actually causing it! H 'n' H is clueless .... again! ;)

[sandiego89]

Multiple deck and sponson scuppers (drains) go to common discharge holes. I would not be surprised to see water sloshing about during builders trials, especially with rapid rudder movements where free-standing water gets thrown all about.

[NutLoose]

They weren’t called the heads for nothing, ;)

[Imagegear]

In my experience of working at sea I never encountered large volumes of standing water being drained under clear skies almost at flight deck level. However it is possible that a fire hydrant or pumps were being tested but this would not be a regular occurrence.

H & H - No clue here either. Someone may be along shortly to fill in the gaps.

IG