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-   -   How do you sink your enemy convoys ? (https://www.subsim.com/radioroom/showthread.php?t=121561)

Canovaro 09-03-07 03:33 PM

Quote:

Originally Posted by Hitman
If I have conducted the correct approach I should be between the lines and moving in the same direction of the convoy, albeit slowly (Let them catch me). So I can shoot two salvoes of two torpedos at a 90º and 270º Gyro Angle and hit two targets. Rear torpedo tube comes not in question because with manual targeting it is too difficult to compensate the parallax without an accurate range reading :88) so I follow UBoat Commander's Handbook advice and don't use it in running fights

Sounds interesting. You sure have more time to take a shot this way. What do you do after you have launched the torpedoes? Dive in the same direction? Or take a turn and get out of the direction?

Jimbuna 09-03-07 03:49 PM

From ahead and perpendicular :arrgh!:

Hitman 09-03-07 04:53 PM

Quote:

Sounds interesting. You sure have more time to take a shot this way. What do you do after you have launched the torpedoes? Dive in the same direction? Or take a turn and get out of the direction?
According to BDU doctrine, you should dive in the same direction as the convoy goes or at most head out in a 45º angle for two reasons: 1) Staying inside it makes it more difficult for the DDs to locate you by passive sound, and also maneuvering to throw depth charges is critical (A DD must go fast if he doesn't want to blow his own stern...and doing so in the middle of a scared convoy is a risky affair) 2) That way you will not loose ground and can surface outside, gain position again in a quick run and make another attack.

According to official US doctrine, heading in the opposite direction is better for evasion after the attack

Choose which one you prefer :arrgh!: I personally make that depend on wether I can have reasonable chances of doing another attack (If I have torpedoes and fuel left to keep the chase, if it is late or early war and such...)

P.S: I forgot to add: IN real life Kaleuns would normally head for the convoy submerged, diving deep between periscope exposures (Speed and heading of the convoy should have been determined during the overhaul manouver) and then turn 180º after trespassing the escort screen. Reason: Heading opposite direction of the convoy gets you faster past the screen, plus your heading is better for a quick turn into the blind spot of the DD's baffles if you are located. Then going to peri depth and letting the convoy catch you makes it the easies way to apply corrections in course to ensure proper firing location, plus confirm current convoy speed (By measuring change in bearing of the merchants that go by on your flanks, either by periscope or hydrophones). If the escort is closer and you can't do a 180º turn, or if you want to shoot with better Gyro Angles, then a 90º turn puts you perpendicular to the colums and gives you good shot. I don't like it much however, as the danger of being rammed and the little time you have to set up well your shot is not easy to manage.

onelifecrisis 09-03-07 05:17 PM

90 degree angle, middle of the convoy, fire both fore and aft torps... now, is that the first option in the poll or the last?

Brag 09-03-07 08:48 PM

Enemy convoys? I should hope so. I will not sink friendly ones :88)

Kaleu. Jochen Mohr 09-03-07 08:51 PM

Quote:

Originally Posted by Brag
Enemy convoys? I should hope so. I will not sink friendly ones :88)

you sink neutrals ? :o

Lafferty 09-03-07 09:20 PM

It depends on my mood if i attack a nuetral and if they fire on me first.

Alyebard 09-04-07 03:20 AM

I try to sneak inside the convoy from the front , turn 90º and fire a salvo with AOB 90º, then submerge to 140-150 m, silent and praying not to be detected :-?

abel29a 09-04-07 12:35 PM

For surface attacks I prefer to stay to the front, then move in trying to minimize exposure to front escort - usually moving in at half speed or so. Then I turn 90 degree to convoy course and fire while 500 m or so from nearest column - altough I usually fire at columns further away to give me more time to depart. (Setting the eels to slow if aplicable) I then turn around and move directly away from convoy at high speed to get as much separation as possible before the eels impact. During this manouver I usually also fire my stern at some suitable target. Early war I usually manage to avoid detection, and can quickly reload and overtake the convoy setting up for another attack within the next 1-2 hours.

For submerged attacks - sneak in from the front, set up somewhere in between columns, fire all tubes and then dive in the direction the convoy is headed.

Letum 09-04-07 09:03 PM

I attack ships from the saftey of the land. Less depth charges there.

http://www.b3tards.com/u/57a418c694b...b3/tank_02.jpg

Kaleu. Jochen Mohr 09-04-07 09:18 PM

:rotfl::rotfl::rotfl::rotfl:

Letum 09-04-07 10:22 PM

When there ae no beaches about I atack from the air!
http://www.davidszondy.com/future/Flight/flysub.jpg

Canovaro 09-05-07 03:41 AM

Quote:

Originally Posted by Hitman
Quote:

Sounds interesting. You sure have more time to take a shot this way. What do you do after you have launched the torpedoes? Dive in the same direction? Or take a turn and get out of the direction?
According to BDU doctrine, you should dive in the same direction as the convoy goes or at most head out in a 45º angle for two reasons: 1) Staying inside it makes it more difficult for the DDs to locate you by passive sound, and also maneuvering to throw depth charges is critical (A DD must go fast if he doesn't want to blow his own stern...and doing so in the middle of a scared convoy is a risky affair) 2) That way you will not loose ground and can surface outside, gain position again in a quick run and make another attack.

According to official US doctrine, heading in the opposite direction is better for evasion after the attack

Choose which one you prefer :arrgh!: I personally make that depend on wether I can have reasonable chances of doing another attack (If I have torpedoes and fuel left to keep the chase, if it is late or early war and such...)

P.S: I forgot to add: IN real life Kaleuns would normally head for the convoy submerged, diving deep between periscope exposures (Speed and heading of the convoy should have been determined during the overhaul manouver) and then turn 180º after trespassing the escort screen. Reason: Heading opposite direction of the convoy gets you faster past the screen, plus your heading is better for a quick turn into the blind spot of the DD's baffles if you are located. Then going to peri depth and letting the convoy catch you makes it the easies way to apply corrections in course to ensure proper firing location, plus confirm current convoy speed (By measuring change in bearing of the merchants that go by on your flanks, either by periscope or hydrophones). If the escort is closer and you can't do a 180º turn, or if you want to shoot with better Gyro Angles, then a 90º turn puts you perpendicular to the colums and gives you good shot. I don't like it much however, as the danger of being rammed and the little time you have to set up well your shot is not easy to manage.

Thanks for the info and your thoughts Hitman, I will play with this a little

Maraz 09-05-07 03:53 AM

Quote:

Originally Posted by Hitman
If I have conducted the correct approach I should be between the lines and moving in the same direction of the convoy, albeit slowly (Let them catch me). So I can shoot two salvoes of two torpedos at a 90º and 270º Gyro Angle and hit two targets.

Thanks Hitman, great information from you, as usual. Actually I would not feel very confortable firing with this large gyro angles, I even read (somewhere in SHIII documentation) that in early war gyro angle should be smaller than +- 60. Did you try this kind of shooting in SH3?

Thanks

Maraz

Kpt. Lehmann 09-05-07 05:13 AM

Quote:

Originally Posted by bigboywooly
With torpedos and shells :88)

:rotfl: :rotfl: :rotfl:

Sometimes I throw potatoes.:|\\


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