Convoy interception tutorial.

Aequitas · 08-05-07, 06:40 PM

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.

XLjedi · 08-06-07, 07:52 AM

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

ETsd4 · 10-31-11, 10:19 PM

Quote:

Originally Posted by Aequitas

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

19Herr_Rapp86 · 10-31-11, 10:53 PM

Gonna have to try it out. Been using Wazoo's method.

Daniel Prates · 11-03-11, 11:42 AM

In any case, all those methods are just for getting and idea on how to screen a convoy or ship from afar, and positioning your boat into an optimal firing position. The actual firing procedure can be entirely (or semi-entirely, if you want an AOB that is close to perfect) by visual means. So I never felt the need of such an extremely tidy method for following a convoy.

I'm goin' down · 11-03-11, 05:08 PM

Sliced bread is almost as good as MOBO, created by our in resident genius, aaronblood. (psst. aaronblood, you haven't forgotten that I was and am still MOBO biggest fan? It is incredible.)

10-31-11, 10:53 PM	#4
19Herr_Rapp86 Lieutenant Join Date: Nov 2009 Location: Ellinwood, Kansas Posts: 260 Downloads: 259 Uploads: 0	Gonna have to try it out. Been using Wazoo's method. __________________ Kapitanleutnant Rapp, Kommandant U-45

08-05-07, 06:40 PM	#1
Aequitas Nub Join Date: Jul 2007 Posts: 4 Downloads: 9 Uploads: 0	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.

11-03-11, 11:42 AM	#5
Daniel Prates Grey Wolf Join Date: Apr 2011 Location: Curitiba, Brazil Posts: 938 Downloads: 65 Uploads: 0	In any case, all those methods are just for getting and idea on how to screen a convoy or ship from afar, and positioning your boat into an optimal firing position. The actual firing procedure can be entirely (or semi-entirely, if you want an AOB that is close to perfect) by visual means. So I never felt the need of such an extremely tidy method for following a convoy.

11-03-11, 05:08 PM	#6
I'm goin' down Ocean Warrior Join Date: Sep 2008 Location: Notify command we have entered the Grass Sea Posts: 2,822 Downloads: 813 Uploads: 0	Sliced bread is almost as good as MOBO, created by our in resident genius, aaronblood. (psst. aaronblood, you haven't forgotten that I was and am still MOBO biggest fan? It is incredible.)