[REL] Hitman's In Game Torpedo Spread Angle Calculator

Nisgeis · 11-09-08, 01:14 PM

What a mouthful, so let's just called it a TSAC for short. This little mod will insert on the attack map a chart that graphically solves the equations to work out the angular length of a target at various ranges and Angles on the bow. It looks like this:

There's a PDF included so you can print out a higher resolution (and much easier to read) version. The PDF also has three examples of how to use it to get the length of a target. Using this chart, you can work out how much spread to use to get 100% coverage on a target and therefore work out any other combination of spread percentagtes. The great advantage to this chart is the reduction of errors made whilst trying to calculate the various factors and once you are used to it, it's very simple to get a quick spread coverage.

Firstly, get the Torpedo Track Angle from the TDC:

Use this on the chart by finding the target's length and then following round the length lines to the corresponding angle. This graphically solves the change in apparent target length from actual target length due to the foreshortening effect of not being dead on 90 degrees.

Then find out the torped run time, at the end of the torpedo projected path line:

Then look up the torpedo run length from that time for the speed of your torpedo. Normally the TDC would give you the torpedo run length, but that's not something we have the luxury of in SH4 yet, so we'll have to settle for looking it up in the table for now. This gives you the torpedo run length, so you can now move along from the apparent target length you have until you hit the run length line that corresponds to your torpedo's run length. Moving upwards from this line to the top will give you the apparent target length in degrees for your target at that AoB and range. You can then use this to place your spreads.

For example, if your target will have an angular length of 5 degrees at the time of torpedo impact, then you can fire one torpedo 2.5 degrees left, one at 0 to hit the MOT (Middle of Target) and one 2.5 degeres right. I would recommend shooting aft, MOT then bow to get the best divergent spread.

Install with JSGME, but if you have a mod that has already modified the meu_1024_768.ini file, then there are instructions in the readme file that tell you how to add it manually - just remove the menu_1024_768.ini file from the mod folder and follow the instructions.

Thanks to Hitman for doing all the work for getting it into the game - something that i would not have thought thought of and also for the instructions for manually adding it in.

Also thanks to the USS Torsk Volunteer Association, without whom this chart would probably have been forgotten.

Oh yes, almost forgot! The download link is here:

http://files.filefront.com/Hitmans+I.../fileinfo.html

11-09-08, 01:14 PM	#1
Nisgeis Ocean Warrior Join Date: Jan 2008 Posts: 2,909 Downloads: 77 Uploads: 11	[REL] Hitman's In Game Torpedo Spread Angle Calculator What a mouthful, so let's just called it a TSAC for short. This little mod will insert on the attack map a chart that graphically solves the equations to work out the angular length of a target at various ranges and Angles on the bow. It looks like this: There's a PDF included so you can print out a higher resolution (and much easier to read) version. The PDF also has three examples of how to use it to get the length of a target. Using this chart, you can work out how much spread to use to get 100% coverage on a target and therefore work out any other combination of spread percentagtes. The great advantage to this chart is the reduction of errors made whilst trying to calculate the various factors and once you are used to it, it's very simple to get a quick spread coverage. Firstly, get the Torpedo Track Angle from the TDC: Use this on the chart by finding the target's length and then following round the length lines to the corresponding angle. This graphically solves the change in apparent target length from actual target length due to the foreshortening effect of not being dead on 90 degrees. Then find out the torped run time, at the end of the torpedo projected path line: Then look up the torpedo run length from that time for the speed of your torpedo. Normally the TDC would give you the torpedo run length, but that's not something we have the luxury of in SH4 yet, so we'll have to settle for looking it up in the table for now. This gives you the torpedo run length, so you can now move along from the apparent target length you have until you hit the run length line that corresponds to your torpedo's run length. Moving upwards from this line to the top will give you the apparent target length in degrees for your target at that AoB and range. You can then use this to place your spreads. For example, if your target will have an angular length of 5 degrees at the time of torpedo impact, then you can fire one torpedo 2.5 degrees left, one at 0 to hit the MOT (Middle of Target) and one 2.5 degeres right. I would recommend shooting aft, MOT then bow to get the best divergent spread. Install with JSGME, but if you have a mod that has already modified the meu_1024_768.ini file, then there are instructions in the readme file that tell you how to add it manually - just remove the menu_1024_768.ini file from the mod folder and follow the instructions. Thanks to Hitman for doing all the work for getting it into the game - something that i would not have thought thought of and also for the instructions for manually adding it in. Also thanks to the USS Torsk Volunteer Association, without whom this chart would probably have been forgotten. Oh yes, almost forgot! The download link is here: http://files.filefront.com/Hitmans+I.../fileinfo.html __________________ -------------------------------- This space left intentionally blank. Last edited by Nisgeis; 11-09-08 at 01:23 PM.