What is a good method to plot a ships course using the gramophone?

09-18-08, 09:42 AM

For example I am submerged when I pick up a contact via audio and I can't see it, what is a good way to plot the course? In SH4 I ping it with sonar every few minutes and draw a line that is the ships course and intercept. "ship, closing at long range at 10 degrees is a bit vague.

Kruger · 09-18-08, 09:46 AM

Sorry...the gramophone ?

onelifecrisis · 09-18-08, 09:48 AM

This is more of a "by the way" than a complete answer, but you can ping it in SH3 once the technology arrives (1942 IIRC).

Sailor Steve · 09-18-08, 11:44 AM

Yep, most u-boats for most of the war didn't have active sonar. They couldn't ping and get a precise range and bearing. They had to get close enough to see the target, and then get the information visually.

Task Force · 09-18-08, 11:47 AM

Gamaphone = music

Hydrophone = listening equipment for a sub.

(just joaking ok)

kylania · 09-18-08, 12:20 PM

If you're playing with map updates on the ships position will be at the end of the sound contact line. So you can simply plot it's course and location from that.

Otherwise... well, enjoy this:

Plotting a contact-course only using hydrophones!

That'll get you a good plot using only the hydrophones and a spectacular amount of drawing and trig. :p

Tango589 · 09-18-08, 12:23 PM

To use the gramaphone to locate a ship, you need to get Bernard standing up on deck with the ships record collection. He then frisbees the records out into the sea. You have to listen for the sound of of your favourite LP hitting the side of a ship. The angle Bernard was facing is the ships bearing and the length of time between Bernard flinging the LP into the briney and the clunk of LP against steel gives you an idea of the ships range.

BTW to be really effective, you need a considerable collection of records.

Something suitable is available here:

http://www.subsim.com/radioroom/showthread.php?t=128841

papa_smurf · 09-18-08, 01:03 PM

Quote:

To use the gramaphone to locate a ship, you need to get Bernard standing up on deck with the ships record collection. He then frisbees the records out into the sea. You have to listen for the sound of of your favourite LP hitting the side of a ship. The angle Bernard was facing is the ships bearing and the length of time between Bernard flinging the LP into the briney and the clunk of LP against steel gives you an idea of the ships range.

BTW to be really effective, you need a considerable collection of records.

Thats some throw Bernards got

Piggy · 09-18-08, 01:17 PM

Dont mean to take this OT but being fairly new to this game/forum who is Bernard and what is the deal with all the jokes about "him"?

Anyone else I should know about?

On topic, with map contacts on (which is the way i play) I make a mark at the end of the contact line, wait a few minutes (or use TC) and make another mark, do this again with enough space between the marks to be able to draw a decent line (long enough to stretch out) across all of them. This gives you a rough idea of its course for an intercept point to get a visual.

FIREWALL · 09-18-08, 01:21 PM

Bernard plays Classic Rock & Roll on the Gramophone to lure in British ships.

Task Force · 09-18-08, 01:26 PM

check out dowlys Humerious SH3 screen shot thread. thats where bernard started.
Bernard simply is the one guy you dont want on your boat. he is the downfall of the entire german U boat waffe.

kylania · 09-18-08, 01:27 PM

Quote:

Originally Posted by Piggy

Dont mean to take this OT but being fairly new to this game/forum who is Bernard and what is the deal with all the jokes about "him"?

Anytime anything at all goes wrong, it was Bernard's fault.

Piggy · 09-18-08, 01:43 PM

Quote:

Originally Posted by Task Force

check out dowlys Humerious SH3 screen shot thread. thats where bernard started.
Bernard simply is the one guy you dont want on your boat. he is the downfall of the entire german U boat waffe.

Yeah Ive seen that thread

, was just curious how it started.

09-18-08, 03:28 PM

I edited my post to say hydrophone. Whoops.

mayandlex · 09-18-08, 04:13 PM

Hi Piggy, one small system I use often when trying to intercept a ship from a hydrophone bearing is to initially head your boat along the line (you must be submerged) and observe whether the line appears to move over time to the left or right. If say the line is moving to the left then alter course to bring it a bit further to the left,( you will soon become good at this) When the hydrophone line does not move at all relative to your boat over time then you are on a "collision course", the only factor then is to make sure you are closing on the target and not being left behind your sound man should tell you this.
Cheers

09-18-08, 09:42 AM	#1
Flamingboat Stowaway Posts: n/a Downloads: Uploads:	What is a good method to plot a ships course using the hydrophone? For example I am submerged when I pick up a contact via audio and I can't see it, what is a good way to plot the course? In SH4 I ping it with sonar every few minutes and draw a line that is the ships course and intercept. "ship, closing at long range at 10 degrees is a bit vague. Last edited by Flamingboat; 09-18-08 at 03:27 PM.

09-18-08, 09:48 AM	#3
onelifecrisis Maverick Modder Join Date: Aug 2007 Location: England Posts: 3,895 Downloads: 65 Uploads: 3	This is more of a "by the way" than a complete answer, but you can ping it in SH3 once the technology arrives (1942 IIRC). __________________ Freedom of speech - priceless. For everything else there's Mastercard.

09-18-08, 11:44 AM	#4
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Yep, most u-boats for most of the war didn't have active sonar. They couldn't ping and get a precise range and bearing. They had to get close enough to see the target, and then get the information visually. __________________ “Never do anything you can't take back.” —Rocky Russo

09-18-08, 11:47 AM	#5
Task Force Rear Admiral Join Date: Jul 2008 Location: SPACE!!!! Posts: 10,142 Downloads: 85 Uploads: 0	Gamaphone = music Hydrophone = listening equipment for a sub. (just joaking ok) __________________ Task Force industries "Taking control of the world, one mind at a time"

09-18-08, 12:20 PM	#6
kylania Silent Hunter Join Date: Aug 2006 Posts: 3,528 Downloads: 118 Uploads: 0	If you're playing with map updates on the ships position will be at the end of the sound contact line. So you can simply plot it's course and location from that. Otherwise... well, enjoy this: Plotting a contact-course only using hydrophones! That'll get you a good plot using only the hydrophones and a spectacular amount of drawing and trig. :p __________________

09-18-08, 09:46 AM	#2
Kruger Commander Join Date: Jun 2006 Posts: 476 Downloads: 21 Uploads: 0	Sorry...the gramophone ?

09-18-08, 12:23 PM	#7
Tango589 Still crazy as ever! Join Date: Jan 2008 Location: A little south of sanity Posts: 3,375 Downloads: 180 Uploads: 1	To use the gramaphone to locate a ship, you need to get Bernard standing up on deck with the ships record collection. He then frisbees the records out into the sea. You have to listen for the sound of of your favourite LP hitting the side of a ship. The angle Bernard was facing is the ships bearing and the length of time between Bernard flinging the LP into the briney and the clunk of LP against steel gives you an idea of the ships range. BTW to be really effective, you need a considerable collection of records. Something suitable is available here: http://www.subsim.com/radioroom/showthread.php?t=128841 __________________ Hanging on in quiet desperation is the English way...

09-18-08, 01:17 PM	#9
Piggy Ensign Join Date: Aug 2008 Location: Vancouver, B.C., Canada Posts: 234 Downloads: 147 Uploads: 0	Dont mean to take this OT but being fairly new to this game/forum who is Bernard and what is the deal with all the jokes about "him"? Anyone else I should know about? On topic, with map contacts on (which is the way i play) I make a mark at the end of the contact line, wait a few minutes (or use TC) and make another mark, do this again with enough space between the marks to be able to draw a decent line (long enough to stretch out) across all of them. This gives you a rough idea of its course for an intercept point to get a visual.

09-18-08, 01:21 PM	#10
FIREWALL Eternal Patrol Join Date: Mar 2006 Location: CATALINA IS. SO . CAL USA Posts: 10,108 Downloads: 511 Uploads: 0	Bernard plays Classic Rock & Roll on the Gramophone to lure in British ships. __________________ RIP FIREWALL I Play GWX. Silent Hunter Who ???

09-18-08, 01:26 PM	#11
Task Force Rear Admiral Join Date: Jul 2008 Location: SPACE!!!! Posts: 10,142 Downloads: 85 Uploads: 0	check out dowlys Humerious SH3 screen shot thread. thats where bernard started. Bernard simply is the one guy you dont want on your boat. he is the downfall of the entire german U boat waffe. __________________ Task Force industries "Taking control of the world, one mind at a time"

09-18-08, 03:28 PM	#14
Flamingboat Stowaway Posts: n/a Downloads: Uploads:	I edited my post to say hydrophone. Whoops.

09-18-08, 04:13 PM	#15
mayandlex A-ganger Join Date: Nov 2005 Location: New Zealand Posts: 74 Downloads: 106 Uploads: 0	Hydrophone Hi Piggy, one small system I use often when trying to intercept a ship from a hydrophone bearing is to initially head your boat along the line (you must be submerged) and observe whether the line appears to move over time to the left or right. If say the line is moving to the left then alter course to bring it a bit further to the left,( you will soon become good at this) When the hydrophone line does not move at all relative to your boat over time then you are on a "collision course", the only factor then is to make sure you are closing on the target and not being left behind your sound man should tell you this. Cheers

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