SUBSIM Radio Room Forums - View Single Post

Rommer69 · 02-26-09, 08:41 AM

I just want to share my own experience, taking tips from different manuals and adjusting them to my convenience. I play 78% realism, with map contact updates on.
In my last 5 patrols, no more than 3-4 misses firing all my torpedoes of my VIIC boat.

First of all, I don´t use the notepad at all, just intro all the settings manually on the TDC in the attack map after you get them in the nav map.

SPEED:
1.- Draw a mark at the actual position of your target , start the chronometer, stop it after 3:15 min and draw a new mark. Use the icon of the ruler to calculate the distance between the two marks. That distance multiplied by 10 is the speed in knots. If you can´t wait, use a shorter time and calculate the speed in the nomograph at the right side of the navmap. Just as everybody does. Set it on the TDC.

AOB:
1.- Plot the course of your target and draw a line on the map.
2.- Use the angle protractor, draw the first line from your boat to the ship course trough your 0º bearing; the second line following the course line in the direction of the advance of the ship. The angle will show your AOB, be careful to set it in the right place, Stb or port and set it on the TDC.

DISTANCE:
1.- Use the ruler to calculate the distance between your boat and the ship (or if you are in a stand position, the distance to the course line through the bearing you are going to fire). Set it on the TDC
If you are close enough you can use the range marks around your boat on the nav ma to find the distance.
2.- If you are surfaced, you can also ask to the watch officer for visual contacts, he gives you the range.

REMEMBER TO TURN OFF THE MANUAL DATA INPUT AT THE ATTACK MAP AFTER ALL THE SETTINGS.

REMEMBER TO MAINTAIN YOUR PERISCOPE OR UZO AIMING TO 0º BEARING DURING ALL THIS PROCCEEDINGS.
If you are standing and you want to use other bearing different from 0º, you can do it, just turn your periscope/uzo to that bearing before introducing data manually on the TDC and do not move it until you have switch off the manual input data.

You may have to correct the data if the ship changes its course or if you plot it inaccurately, but you just have to follow again the steps.

Now you have your data linked to the periscope/uzo, so when you move it, the AOB is automatically corrected.
Open the tube door before you fire.

Fire torpedo/s when the part of the ship you want to hit reaches the bearing where you intended to fire (because of the range most of all; the AOB will be correct always). If at night or storms and no visibility, point your scope to the bearing you want and fire when your sonarman says the ship reached it. You will hit it in the middle (or where the boilers are).

Watch your torpedo hit were you want to do it!

You can copy and paste to your text editor and print it to a single sheet.
I would like to show screen captures to explain it better, but I can´t an this moment.

If settings are OK, you can get hits from spectacular ranges (I got hits from more than 7000 m).
Hope it will help!

02-26-09, 08:41 AM	#5
Rommer69 A-ganger Join Date: Jul 2008 Location: Spain Posts: 72 Downloads: 4 Uploads: 0	I just want to share my own experience, taking tips from different manuals and adjusting them to my convenience. I play 78% realism, with map contact updates on. In my last 5 patrols, no more than 3-4 misses firing all my torpedoes of my VIIC boat. First of all, I don´t use the notepad at all, just intro all the settings manually on the TDC in the attack map after you get them in the nav map. SPEED: 1.- Draw a mark at the actual position of your target , start the chronometer, stop it after 3:15 min and draw a new mark. Use the icon of the ruler to calculate the distance between the two marks. That distance multiplied by 10 is the speed in knots. If you can´t wait, use a shorter time and calculate the speed in the nomograph at the right side of the navmap. Just as everybody does. Set it on the TDC. AOB: 1.- Plot the course of your target and draw a line on the map. 2.- Use the angle protractor, draw the first line from your boat to the ship course trough your 0º bearing; the second line following the course line in the direction of the advance of the ship. The angle will show your AOB, be careful to set it in the right place, Stb or port and set it on the TDC. DISTANCE: 1.- Use the ruler to calculate the distance between your boat and the ship (or if you are in a stand position, the distance to the course line through the bearing you are going to fire). Set it on the TDC If you are close enough you can use the range marks around your boat on the nav ma to find the distance. 2.- If you are surfaced, you can also ask to the watch officer for visual contacts, he gives you the range. REMEMBER TO TURN OFF THE MANUAL DATA INPUT AT THE ATTACK MAP AFTER ALL THE SETTINGS. REMEMBER TO MAINTAIN YOUR PERISCOPE OR UZO AIMING TO 0º BEARING DURING ALL THIS PROCCEEDINGS. If you are standing and you want to use other bearing different from 0º, you can do it, just turn your periscope/uzo to that bearing before introducing data manually on the TDC and do not move it until you have switch off the manual input data. You may have to correct the data if the ship changes its course or if you plot it inaccurately, but you just have to follow again the steps. Now you have your data linked to the periscope/uzo, so when you move it, the AOB is automatically corrected. Open the tube door before you fire. Fire torpedo/s when the part of the ship you want to hit reaches the bearing where you intended to fire (because of the range most of all; the AOB will be correct always). If at night or storms and no visibility, point your scope to the bearing you want and fire when your sonarman says the ship reached it. You will hit it in the middle (or where the boilers are). Watch your torpedo hit were you want to do it! You can copy and paste to your text editor and print it to a single sheet. I would like to show screen captures to explain it better, but I can´t an this moment. If settings are OK, you can get hits from spectacular ranges (I got hits from more than 7000 m). Hope it will help!