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Harald_Lange · 07-03-12, 02:00 PM

I'm playing manual TDC, and I can pretty much hit stuff more often than not, but I must admit to not being 100% confident with the methods.

I usually plot the ships track, and then park myself 90 degrees perpendicular to it, ( at periscope depth as I always seem to get spotted making surface attacks. I think I have a double agent on my watch crew who must be flashing a torch at them every so often)

At periscope depth I'll usually be pretty close, say 6-800m, and this is what I do.

Centre my attack scope at 0degrees, and open up the TDC controls.
Calculate the speed using the 3m15s technique, set the AOB to be 90degrees, (in the relevant direction)
Input the ships speed and range, set the shot angle at 0 degrees (if necessary)
Set my fish trigger and depth, and then, this is the part I'm not confident with:
I set the TDC and then turn my attack scope slightly towards the target so my bearing angle (or whatever its called) reads 000. I then open the tubes & sit there until the ship comes in front of the cross hairs.

All of this works well, I'm just not sure about any other methods. Does the fact that I move my crosshairs so that my angle reads 000, mean that I'm predicting the position that the torpedo will hit when the ship is dead ahead of me, at ninety degrees? So for example, if the AOB was say, 70degrees, and i input the data, I would then turn my crosshairs so that it still read 000? and then that would be the predicted position the fish would hit when the ship arrives at a 70degree angle?

Pardon me if I'm not making myself clear, but of all the tuts I've watched, none really explain the 'why', at least not well enough for me to grasp it :P

I'd appreciate it if someone could explain the methods used.

07-03-12, 02:00 PM	#1
Harald_Lange Ensign Join Date: Jan 2012 Location: NY Harbour, Periscope depth. Posts: 235 Downloads: 160 Uploads: 0	Manual targetting question. I'm playing manual TDC, and I can pretty much hit stuff more often than not, but I must admit to not being 100% confident with the methods. I usually plot the ships track, and then park myself 90 degrees perpendicular to it, ( at periscope depth as I always seem to get spotted making surface attacks. I think I have a double agent on my watch crew who must be flashing a torch at them every so often) At periscope depth I'll usually be pretty close, say 6-800m, and this is what I do. Centre my attack scope at 0degrees, and open up the TDC controls. Calculate the speed using the 3m15s technique, set the AOB to be 90degrees, (in the relevant direction) Input the ships speed and range, set the shot angle at 0 degrees (if necessary) Set my fish trigger and depth, and then, this is the part I'm not confident with: I set the TDC and then turn my attack scope slightly towards the target so my bearing angle (or whatever its called) reads 000. I then open the tubes & sit there until the ship comes in front of the cross hairs. All of this works well, I'm just not sure about any other methods. Does the fact that I move my crosshairs so that my angle reads 000, mean that I'm predicting the position that the torpedo will hit when the ship is dead ahead of me, at ninety degrees? So for example, if the AOB was say, 70degrees, and i input the data, I would then turn my crosshairs so that it still read 000? and then that would be the predicted position the fish would hit when the ship arrives at a 70degree angle? Pardon me if I'm not making myself clear, but of all the tuts I've watched, none really explain the 'why', at least not well enough for me to grasp it :P I'd appreciate it if someone could explain the methods used.