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 07-31-07, 08:16 AM   #1
XLjedi
Ace of the Deep
 
Join Date: Jun 2005
Location: Palm Beach, Florida
Posts: 1,243
Downloads: 53
Uploads: 8
Default

If you're interested...

I have a vector math tool that solves that problem (among other things) in about 5 seconds.

__________________
XLjedi is offline   Reply With Quote
Old 07-31-07, 08:46 AM   #2
Snuffy
XO
 
Join Date: Mar 2007
Posts: 420
Downloads: 5
Uploads: 0
Default

Good Job!

Thanks for taking the time!
__________________
-----------------
Snuffy!
Snuffy is offline   Reply With Quote
Old 07-31-07, 08:55 AM   #3
Hitech1
Swabbie
 
Join Date: Dec 2001
Posts: 6
Downloads: 18
Uploads: 0
Quote:
Originally Posted by aaronblood
If you're interested...

I have a vector math tool that solves that problem (among other things) in about 5 seconds.

I for one would be interested in that tool. Where can I find it??

Thanks ................ Hitech
Hitech1 is offline   Reply With Quote
Old 07-31-07, 09:02 AM   #4
XLjedi
Ace of the Deep
 
Join Date: Jun 2005
Location: Palm Beach, Florida
Posts: 1,243
Downloads: 53
Uploads: 8
Default

Quote:
Originally Posted by Hitech1

I for one would be interested in that tool. Where can I find it??

Thanks ................ Hitech
Just stop by the MoBo forum, there's a link in my signature.
__________________
XLjedi is offline   Reply With Quote
Old 07-31-07, 09:23 AM   #5
Hitech1
Swabbie
 
Join Date: Dec 2001
Posts: 6
Downloads: 18
Uploads: 0
Quote:
Originally Posted by aaronblood
Quote:
Originally Posted by Hitech1

I for one would be interested in that tool. Where can I find it??

Thanks ................ Hitech
Just stop by the MoBo forum, there's a link in my signature.

Thanks
Hitech1 is offline   Reply With Quote
Old 07-31-07, 03:39 PM   #6
sportcap
Watch
 
Join Date: Jul 2007
Posts: 21
Downloads: 22
Uploads: 0
Default

Nice tutorial!
__________________
sportcap is offline   Reply With Quote
Old 08-05-07, 06:40 PM   #7
Aequitas
Nub
 
Join Date: Jul 2007
Posts: 4
Downloads: 9
Uploads: 0
Default

I just wanted to thank aaronblood for mentioning "MoBo".
Personally I think the use of "electronic maneuring board" is somearound "incompatible" with "realism" of times WWII. There were only those dividers, circles, protractors,.. and skills of weapons officier, navigator and Herr Kaleun at solving those problems

And I think, they knew the formula

beta = arccos{sqrt[1-(vt*sin(alpha)/v)^2]},

where beta is the angle of interception (counting from 0 course),
vt - target's speed,
alpha - AoB of target,
v - speed of own vessel,
and they used it too (as TDC does) with graphic solutions on paper Maneuring boards.
Yeah, I think they plotted much and were true guru in planar geometry, the masters of ruler and circle

Of course, everybody makes his choice, and I have nothing to say in offence at you .

Also I remark there is a good piece of interesting material in MoBo manual.
From there I've got a great idea of how to get the course of target by using just hydrophone. The key is prediction of bearings and triangulating by those (it was a fresh idea, I always guessed target's speed) after reading section concerning "Advanced TMA" at the end.
Maybe I'll find some time to create a different tutorial with screenshots conserning solution of this task - in terms of using the ingame plot tools (which are similar to real ones instruments), without switching to other programs (and "using techs of future" )

But it's the other topic, however.
Aequitas is offline   Reply With Quote
Old 08-06-07, 07:52 AM   #8
XLjedi
Ace of the Deep
 
Join Date: Jun 2005
Location: Palm Beach, Florida
Posts: 1,243
Downloads: 53
Uploads: 8
Default

Quote:
Originally Posted by Aequitas
Personally I think the use of "electronic maneuring board" is somearound "incompatible" with "realism" of times WWII. There were only those dividers, circles, protractors,.. and skills of weapons officier, navigator and Herr Kaleun at solving those problems
I don't think I've modelled anything in MoBo that a WWII tracking party wouldn't have access to. Granted, I've provided a few shortcuts for the tedious parts, but you're basically just drawing vectors on a map.

Glad you found the TMA info useful... here's a link to a tutorial thread on advanced TMA with MoBo: Advanced TMA
__________________

Last edited by XLjedi; 08-06-07 at 08:33 AM.
XLjedi is offline   Reply With Quote
Old 10-31-11, 10:19 PM   #9
ETsd4
中国水兵
 
Join Date: Dec 2010
Posts: 278
Downloads: 91
Uploads: 0
Default

Quote:
Originally Posted by Aequitas View Post
beta = arccos{sqrt[1-(vt*sin(alpha)/v)^2]},

where beta is the angle of interception (counting from 0 course),
vt - target's speed,
alpha - AoB of target,
v - speed of own vessel,
beta° = (180/pi)(arccos{sqrt[1-(vt*sin(alpha°)/v)^2]}),

where beta° + bearingTotarget° := interceptcourse°,
vt:= target's speed,
alpha°:= AoB of target
v:= speed of own vessel,
pi:= 3.14159265
ETsd4 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 02:47 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.