REQUESTING help for a question

[richardphat]

Ok, I argue with someone on another forum.
He said an engagement between two subermeged SUB IS impossible in WW2 and in real life.
So the question is:
Is it possible for submarines from WW2 engaging another sub while submerged in real life?

True, i am not informed if there was a fight. Nothing has proven this case is impossible.
Nothing has proven this is possible. Well until now, i didn't find any source which prove me that. Unless, I have been smacking my head.
But he kept using his talent of sophist to try and convince me. What a tough guy.

[fatty]

It is possible, indeed it did happen: Brit sub HMS Venturer sank U-864 on 9 February 1945 while both were submerged after a 3-4 hour engagement. That does not mean it was common. In fact, this case is the only known instance in naval warfare history where one submerged submarine sank another submerged submarine.

[richardphat]

THX god d***** I love you. Now got to show him that.

[Fincuan]

Here's another one for you, dating back even further. It is from the book Submarines(1982) by Antony Preston(sic). The excerpt is from the WW1 part of the book, where the author mentions a ghost story involving either the U-65 or UB-65. I wasn't able to find a good source for this on the internet, so here goes how it's in the book. Note that according to the most recent knowledge UB-65 wasn't lost at this incident.

Originally Posted by Submarines

UB.65 sailed from the Heligoland Bight on 2 July 1918(still under the command of [Kapitänleutnant] Scheele) avoiding a torpedo from British boat G.6 on the way, but her periscope was sighted off the Fastnet rock by the American submarine AL.2 at a distance of only 80 yards. Lieutenant Foster was maneuvering to attack when he heard an explosion ahead of the U-Boat, followed by the noise of fast-running propellers and then silence. The assumption by modern authorities is that UB.65 had fired a torpedo(whether at AL.2 or another target is open to question) which exploded prematurely as it left the tube. As both submarines were submerged during the encounter it is highly unlikely that Foster saw a ghostly figure and his report makes no mention of it.

Just out of curiosity, did the person you're arguing with state why an engagement between two subs would be impossible?

[Stealth Hunter]

Was this by chance related to U-571?:hmm:

[kurtz]

I know I'm arguing against the evidence but I don't see how a submarine can target another submerged submarine;

Would the submerged boat be able to open torpedo doors?

What's the max depth a torpedo can run at?

Would the hydrophones give an accurate 3D fix?

On the other hand, acoustic torpedos which did operate in three dimensions were dropped from aircraft to destroy subs so maybe, if they were carried?

[bookworm_020]

Originally Posted by Stealth Hunter

Was this by chance related to U-571?:hmm:

Don't mention that evil in here It could start some long term flame wars!

or you have an enormous amount of luck (As was the case with HMS Venturer)

They missed with the first three torps, but got luck on the last.