SUBSIM Radio Room Forums



SUBSIM: The Web's #1 resource for all submarine & naval simulations since 1997

Go Back   SUBSIM Radio Room Forums > Silent Hunter 3 - 4 - 5 > Silent Hunter 4: Wolves of the Pacific
Forget password? Reset here

Reply
 
Thread Tools Display Modes
Old 02-26-12, 08:10 PM   #1
timmyg00
中国水兵
 
Join Date: Jan 2000
Location: The People's Republic of Massachusetts, USA
Posts: 282
Downloads: 42
Uploads: 0
Default Problem with Cromwell attack method

Hi folks,

I just started trying to use the Cromwell method. I have watched the tutorial and am using the crib sheet. I thought i was performing all of the actions in the correct order. However, when i view the attack map, the torpedo track shows a huge gyro angle away from the direction of the target. Has anyone else had this problem or something similar?

Thanks,

TG
__________________
ET1/SS, SSN-760
USSVI Marblehead Base (MA)

Naval Historical Sites - Photo Galleries
timmyg00 is offline   Reply With Quote
Old 02-26-12, 11:30 PM   #2
Deephunter
A-ganger
 
Join Date: Jul 2009
Posts: 79
Downloads: 102
Uploads: 0
Default

The angle is proportional to the target speed. If it angles a lot it's because the target is really haulin'....
Deephunter is offline   Reply With Quote
Old 02-27-12, 01:40 AM   #3
magic452
Sea Lord
 
Join Date: Sep 2007
Location: Reno Nevada USA
Posts: 1,860
Downloads: 85
Uploads: 0
Default

A couple of thoughts here.
When you input data are you clicking the send to TDC button for each input?

The game won't send a good bearing unless there is a range to go with it,
pull the range triangle down to some range then point the scope to your lead angle and send to TDC Do not turn on the PK!

Your torpedo should have almost no gyro angle, 10 or 15°.

Magic
__________________

Reported lost 11 Feb. 1942
Signature by depthtok33l
magic452 is offline   Reply With Quote
Old 02-27-12, 09:23 AM   #4
timmyg00
中国水兵
 
Join Date: Jan 2000
Location: The People's Republic of Massachusetts, USA
Posts: 282
Downloads: 42
Uploads: 0
Default

Thanks guys...

Target speed is low, and i input in the following order... speed (click-click), AOB (45-lead angle) (click-click), bearing/minrange (click-click). This is the same procedure shown in the video and the crib card.

Doesn't matter though, i have a workaround. I just zero out all the TDC settings so that the attack map shows a zero-gyro angle for my shot, and then shoot when the target gets to my desired lead angle. Works great so far.

-TG
__________________
ET1/SS, SSN-760
USSVI Marblehead Base (MA)

Naval Historical Sites - Photo Galleries
timmyg00 is offline   Reply With Quote
Old 02-27-12, 05:39 PM   #5
itsthewoo
Swabbie
 
Join Date: Dec 2011
Posts: 6
Downloads: 74
Uploads: 0
Default

Assuming you're doing the Cromwell method as written (i.e. 45 degree relative course angle), then you should be doing an AoB of about 35 degrees rather than 45, as you'll be firing pistols when they have an AoB of that amount.
itsthewoo is offline   Reply With Quote
Old 02-28-12, 12:16 PM   #6
timmyg00
中国水兵
 
Join Date: Jan 2000
Location: The People's Republic of Massachusetts, USA
Posts: 282
Downloads: 42
Uploads: 0
Default

Quote:
Originally Posted by itsthewoo View Post
Assuming you're doing the Cromwell method as written (i.e. 45 degree relative course angle), then you should be doing an AoB of about 35 degrees rather than 45, as you'll be firing pistols when they have an AoB of that amount.
Thanks, I wrote that to read "45 minus lead angle".

I now use the Solution Solver (thanks Gutted!) to get a more accurate firing bearing for the Cromwell method. Works great so far.

-TG
__________________
ET1/SS, SSN-760
USSVI Marblehead Base (MA)

Naval Historical Sites - Photo Galleries
timmyg00 is offline   Reply With Quote
Old 02-29-12, 06:09 AM   #7
bebop
Swabbie
 
Join Date: Feb 2012
Posts: 12
Downloads: 17
Uploads: 0
Default

Quote:
Originally Posted by itsthewoo View Post
Assuming you're doing the Cromwell method as written (i.e. 45 degree relative course angle), then you should be doing an AoB of about 35 degrees rather than 45, as you'll be firing pistols when they have an AoB of that amount.

Can I come in here?

Correct me if Im wrong, so it should be subtracted since the angle is steeper as we are sending the data?

Thanks

Regards
bebop is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 10:24 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 1995- 2025 Subsim®
"Subsim" is a registered trademark, all rights reserved.