I spy!

[greenman407]

Dude! You are da man!

[Outrider]

Hajen class sub Uttern built in 1958. The Swedes helpfully put abbreviations on the sail during this period. Uttern means "otter.". If you look carefully, you can barely make out the name on the bow.

[greenman407]

I Spy a Swedish sub emerging from a pen. Who can name it???

[greenman407]

HMS D2 Dudes.

[greenman407]

I spy this. Who can name it?

[greenman407]

Thanks Redboat

[redboat219]

It's the hull penetration for the radio aerial.

[greenman407]

To all you German U-Boat afficianados out there , what is the valve looking thingy just above the central splash guard in the center of the conning tower? It looks like some sort of valve. This picture gives a pretty good view of it.

[greenman407]

OK all you "I SPY " guys out there in model submarine land! Whats this?
Well I know you know what it is but did you know that it comes apart? looks like they removed the port side of it. I didnt know that you could do that. I thought that it was accessed from the inside. Otherwise it would seem like it would be fragile.

[greenman407]

That makes sence.

[roedj]

The big Type IX's, as David said, were very slow to dive. The Germans tried two solutions both of which helped only a little.

First, they removed part of the forward deck to that pinched waist look. In German it's called "Scnelltauchdeck" which literally means "quick diving deck". I have also seen this referred to as a "Schnelltauchback" which means "quick diving upper deck".

Secondly, looking at the first picture you can see that the vertical fairing of the top deck at the rear of the pinched area is actually angled back towards the stern. Once they got the bow submerged to that point the angled vertical portion acted as another "angled down" diving plane.

If I ever do a German WWII sub it'll be a type IX with a Schelltauchdeck. Maybe the U805 - see picture

Dan

[He Who Shall Not Be Named]

The big 'ocean' boats of the Type-9 design were notoriously slow to submerge. All that superstructure gave up its air slowly. The pinched superstructure was an effort to shorten the dive time.

[greenman407]

Look at these four pictures of four different U-Boats. Look at the hour glass shape of the forward superstructure. WHY DID THEY DO THAT? Ive been to two dozen sources and I see no mention of it. The subs are U-190. U-516, U-875, and finally U-883. I can tell you that U-190 was a type IXC/40. Who can dispel the mystery???

[greenman407]

Its interesting to note that the many books and sources that we all use are sometimes suspect. For example, "The encyclopedia of U-Boats by Eberhard Moller doesnt list a U-119 in his book but a Google search brought it up immediately as a type XB.:biggrin: I am , of course, talking about the second picture.

[roedj]

FYI,

Emblem on tower is a Viking ship which indicates 6th Flotilla.

According to uboat - dot - net only two ships had this emblem, U260 and U766.

Of the two, only U260 is known to have had a schnorkel installed on the boat, probably done just before August of 1944.

It's known that Type VII's had the schnorkel fitted on the port side of the tower.

U260 was scuttled off coast of Eire and is a famous dive wreck. Pictures from a wreck dive show the schnorkel but, unfortunately, not the mating fitting on the tower.

My guess - it's the U260 after August of 1944

Dan