Question about firing a "Spread" or "Fan Shot" - Page 2

Heibges · 02-28-07, 01:13 PM

Fan Shooting is a great way to boost your realism also.

from the Uboat Commanders Handbook:

171. As far as the supply of torpedos allows, several shots, in the form of multiple discharges (double or three-fold discharges) should be directed against worthwhile targets, even at short range, and the data are not in doubt. In this case, all the torpedoes should hit the mark in order to ensure the annihilation of the enemy. This means that torpedoes should be fired at different parts of the target.

172. If the range is over 1,000m, or if there is uncertainty as regards aiming data (high speed of the enemy), several torpedoes (2,3, or 4) should be released on the "fan pattern". The idea is to make sure of ONE hit. It is better to score only one hit than to miss the target with each of several consecutive shots.

02-28-07, 01:47 PM

Right... I very rarely use the fan shot myself. One time I did, was when I was zeroing up on a T2, and the DD in front of the convoy was zeroing in on ME (1000m astern, and pinging me). I knew I'd only get one shot, so I let everything rip at that T2, and dove deep. As luck would have it, the very first torp blew the T2 sky-high, and that wasted the other torps

but hey, T2's a good kill in any event.

FIREWALL · 02-28-07, 02:35 PM

I like to sucker in a DD head on and about 500 meters let go with a salvo
at .5 spread and his fast turn is to little to late. I also crash dive and turn
oposite his turn.

ps. Remember Bungo Pete. :p

danurve · 02-28-07, 03:16 PM

Quote:

Originally Posted by FIREWALL

I like to sucker in a DD head on and about 500 meters let go with a salvo
at .5 spread and his fast turn is to little to late. I also crash dive and turn
oposite his turn.

ps. Remember Bungo Pete. :p

I like that idea, sounds like it has brass. Might only get in one hit & waste eels but sinking a DD hunting you is most excellent.

CaptainAsh · 02-28-07, 03:45 PM

I disagree...
one torpedo against a DD is a waste but can be a life savor.
3 or 4 torpedoes against a DD is just a waste. 1200 or 1300 tons?

Keelbuster · 02-28-07, 04:39 PM

Sometimes I'll try for a DtT (down the throat) shot against a lone DD. If >3km away, I'll surface at flank and blaze directly away from the destroyer. Wait till he's at max speed, and going straight for you. Line up a rear T2 shot with 0 gyro and set it for 1m below keeldepth. Fire. Continue at flank - he'll probably miss with his shots. Dive with ~30 secs to impact. He'll continue at flank, and hopefull keep exactly that course. Sometimes you can get a kill with this. It works _much_ better with a wakehomer. You can just keep him running after you and let the wakehomer chase him down. But yea - in general - don't waste torps DDs.

FIREWALL · 02-28-07, 04:50 PM

1939- 40 I even use deck gun to get his attention. When he turns at
me i dive to PD and line up at 0 degrees and use tactic in last post.
No Guts no Glory. Good practice for SH4.

greyrider · 02-28-07, 05:20 PM

letterboy1
you might want to take a look at this chart, of torpedo offsets, as i think this chart will answer the question you asked.

this was not made by me, but by someone along time ago, it was written for sh1, so its gonna be good to use for sh4.
the offsets are given in yards, the english measuring system, not meters. if you want to use it for sh3, you have to convert from yards to meters.
the chart lists the torpedo offset angle on the left column, and the ranges at on the top.
to use this chart, ill make an example:
if you have a target vessel at 500 yards, and you want to fire a two torpedo spread at the target, and you set your two torpedoes for a half degree spread,
then when the torpedoes strike the target, they should explode 13 yards apart against the ships hull.
if you have a target at 2000 yards, and you want to fire a spread of 1 degree, then the torps will strike the targets hull at 105 yards apart from each other.
i hope this helps you, and answers your question, which was a very good one.

the data is hard to read with the blue background if your going to print this chart out, so i removed the blue, for white, which is easier to read now.

http://img87.imageshack.us/my.php?im...oanglesvh5.jpg

02-28-07, 01:13 PM	#16
Heibges Sea Lord Join Date: Feb 2004 Location: San Francisco, California Posts: 1,633 Downloads: 1 Uploads: 0	Fan Shooting is a great way to boost your realism also. from the Uboat Commanders Handbook: 171. As far as the supply of torpedos allows, several shots, in the form of multiple discharges (double or three-fold discharges) should be directed against worthwhile targets, even at short range, and the data are not in doubt. In this case, all the torpedoes should hit the mark in order to ensure the annihilation of the enemy. This means that torpedoes should be fired at different parts of the target. 172. If the range is over 1,000m, or if there is uncertainty as regards aiming data (high speed of the enemy), several torpedoes (2,3, or 4) should be released on the "fan pattern". The idea is to make sure of ONE hit. It is better to score only one hit than to miss the target with each of several consecutive shots. __________________ U.Kdt.Hdb B. I. 28) This possibility of using the hydrophone to help in detecting surface ships should, however, be restricted to those cases where the submarine is unavoidably compelled to stay below the surface. http://www.hackworth.com/

02-28-07, 02:35 PM	#18
FIREWALL Eternal Patrol Join Date: Mar 2006 Location: CATALINA IS. SO . CAL USA Posts: 10,108 Downloads: 511 Uploads: 0	I like to sucker in a DD head on and about 500 meters let go with a salvo at .5 spread and his fast turn is to little to late. I also crash dive and turn oposite his turn. ps. Remember Bungo Pete. :p __________________ RIP FIREWALL I Play GWX. Silent Hunter Who ???

02-28-07, 04:39 PM	#21
Keelbuster Ace of the Deep Join Date: Oct 2005 Location: BA 72 Posts: 1,092 Downloads: 43 Uploads: 0	Sometimes I'll try for a DtT (down the throat) shot against a lone DD. If >3km away, I'll surface at flank and blaze directly away from the destroyer. Wait till he's at max speed, and going straight for you. Line up a rear T2 shot with 0 gyro and set it for 1m below keeldepth. Fire. Continue at flank - he'll probably miss with his shots. Dive with ~30 secs to impact. He'll continue at flank, and hopefull keep exactly that course. Sometimes you can get a kill with this. It works _much_ better with a wakehomer. You can just keep him running after you and let the wakehomer chase him down. But yea - in general - don't waste torps DDs. __________________

02-28-07, 04:50 PM	#22
FIREWALL Eternal Patrol Join Date: Mar 2006 Location: CATALINA IS. SO . CAL USA Posts: 10,108 Downloads: 511 Uploads: 0	1939- 40 I even use deck gun to get his attention. When he turns at me i dive to PD and line up at 0 degrees and use tactic in last post. No Guts no Glory. Good practice for SH4. __________________ RIP FIREWALL I Play GWX. Silent Hunter Who ???

02-28-07, 05:20 PM	#23
greyrider Watch Officer Join Date: Apr 2005 Location: massachusetts Posts: 334 Downloads: 237 Uploads: 0	letterboy1 you might want to take a look at this chart, of torpedo offsets, as i think this chart will answer the question you asked. this was not made by me, but by someone along time ago, it was written for sh1, so its gonna be good to use for sh4. the offsets are given in yards, the english measuring system, not meters. if you want to use it for sh3, you have to convert from yards to meters. the chart lists the torpedo offset angle on the left column, and the ranges at on the top. to use this chart, ill make an example: if you have a target vessel at 500 yards, and you want to fire a two torpedo spread at the target, and you set your two torpedoes for a half degree spread, then when the torpedoes strike the target, they should explode 13 yards apart against the ships hull. if you have a target at 2000 yards, and you want to fire a spread of 1 degree, then the torps will strike the targets hull at 105 yards apart from each other. i hope this helps you, and answers your question, which was a very good one. the data is hard to read with the blue background if your going to print this chart out, so i removed the blue, for white, which is easier to read now. http://img87.imageshack.us/my.php?im...oanglesvh5.jpg __________________ Her gun crew had guts, however, for from her canting bow came a half dozen well-aimed rounds. How they pointed and trained their gun on that tilting platform will long remain a wonder, and their dedication in keeping up the fire until they went under would be a matter of pride to any nation. O'Kane, Richard. Clear the Bridge!: The War Patrols of the U.S.S. Tang Last edited by greyrider; 03-04-07 at 12:11 PM.

02-28-07, 01:47 PM	#17
Engel der Vernichtung Stowaway Posts: n/a Downloads: Uploads:	Right... I very rarely use the fan shot myself. One time I did, was when I was zeroing up on a T2, and the DD in front of the convoy was zeroing in on ME (1000m astern, and pinging me). I knew I'd only get one shot, so I let everything rip at that T2, and dove deep. As luck would have it, the very first torp blew the T2 sky-high, and that wasted the other torps but hey, T2's a good kill in any event.

02-28-07, 03:45 PM	#20
CaptainAsh Machinist's Mate Join Date: Feb 2007 Posts: 128 Downloads: 12 Uploads: 0	I disagree... one torpedo against a DD is a waste but can be a life savor. 3 or 4 torpedoes against a DD is just a waste. 1200 or 1300 tons?