SUBSIM Radio Room Forums - View Single Post - U-Boat manual targeting

sharkbit · 04-16-11, 03:58 PM

Alrighty then, here is what I did to confirm:

I positioned my sub 90 degrees off the starboard side of a non-moving ship, bearing dead ahead. So-
Target Speed: 0
AOB: Stbd 90
Range: 1000 meters.
Bearing(relative): 000

I input the pertinent information into the TDC and engaged the TDC.

With the scope locked, I ordered a hard right rudder and came around until the ship was bearing 270 degrees relative.
When I was steadied on what would be a parallel course, the TDC read a 0 dgree AOB while in reality I still had a 90 degree starboard AOB(a little less actually due to my movement during the turn).
As I turned, the AOB dial spun around to the 0 degree AOB as the locked scope remained on the target.

So bottom line-with the German TDC, any change in your submarine's course or the target's course requires the TDC to be disengaged, the new information input in the TDC, and the TDC re-engaged.
The way the German TDC works is why the Fast-90 method works so well. Once you "calibrate" the scope to the 90 degree AOB, any way you move the scope will show what the AOB would be at any relative bearing, as long as you or the target does not change course.

Also with the German TDC, unlike the US TDC, the range needs to be constantly updated as you approach the target since there is no Position Keeper on the German TDC.

This check was done using SH3. I am assuming, since I have never tried out the u-boats in SH4, the u-boat TDC in SH4 is set up the same way as the german TDC in SH3. If someon could confirm that, it would be appreciated. If it does not work the same way as it does in SH3, well......
Never Mind.

04-16-11, 03:58 PM	#13
sharkbit The Old Man Join Date: Apr 2008 Location: Denver, CO Posts: 1,529 Downloads: 334 Uploads: 0	Alrighty then, here is what I did to confirm: I positioned my sub 90 degrees off the starboard side of a non-moving ship, bearing dead ahead. So- Target Speed: 0 AOB: Stbd 90 Range: 1000 meters. Bearing(relative): 000 I input the pertinent information into the TDC and engaged the TDC. With the scope locked, I ordered a hard right rudder and came around until the ship was bearing 270 degrees relative. When I was steadied on what would be a parallel course, the TDC read a 0 dgree AOB while in reality I still had a 90 degree starboard AOB(a little less actually due to my movement during the turn). As I turned, the AOB dial spun around to the 0 degree AOB as the locked scope remained on the target. So bottom line-with the German TDC, any change in your submarine's course or the target's course requires the TDC to be disengaged, the new information input in the TDC, and the TDC re-engaged. The way the German TDC works is why the Fast-90 method works so well. Once you "calibrate" the scope to the 90 degree AOB, any way you move the scope will show what the AOB would be at any relative bearing, as long as you or the target does not change course. Also with the German TDC, unlike the US TDC, the range needs to be constantly updated as you approach the target since there is no Position Keeper on the German TDC. This check was done using SH3. I am assuming, since I have never tried out the u-boats in SH4, the u-boat TDC in SH4 is set up the same way as the german TDC in SH3. If someon could confirm that, it would be appreciated. If it does not work the same way as it does in SH3, well...... Never Mind. __________________ “Prejudice is blind. There will always be someone who says you aren’t welcome at the table. Stop apologizing for who you are and using all your energy trying to change their minds. Yes, you will lose friends, maybe even family. But you will gain your self-respect. You will know your worth. Once you have that, nothing can stop you.”