razark wrote...but when you enter the course the white triangle for the high speed dial is pointing to 8° and now it is pointing to just under 4°. I went back and tried this again and kept getting radar readings to compare with the generated range and the differential between the two increases to 600yds when the target is dead ahead. here is a screenshot showing the target on the 338° course and the actual radar ranges I got at various points.
http://i982.photobucket.com/albums/a...230600_687.jpg
The second course line I drew in is 333°(It starts at the moment I turned on the PK) and it lines up perfectly with the range difference between the generated range and the actual radar readings. The 3 compass circles correspond to the difference between the generated range and the actual readings as shown on the green and white dials on the range unit.

Urge

I just want to hear someone say that they actually played this test mission and sunk or at least hit the tanker using the TDC solution. When is the best time to fire for TDC shots? When they are a few degrees before dead ahead?

On a positive note, if I ever figure out how to actually hit something, I have gotten to the point where I can do all the TDC entry(to the point of turning on the PK) in not much more time than a DOK setup.

Urge

Urge, run the mission with automatic targetting turned on and lock the scope to the target. That will populate the TDC with the target data. Don't turn the PK on thgough, just keep the scope locked. Then you can take radar readings and compare them to the TDC (100% accurate automatic data) range and bearing and see what's possibly going wrong.

The white triangles on the TDC will change as the bearing changes but don't pay any attention to it, it's only changing because the target bearing is changing and New Target Course = Own Course + Relative Bearing to Target + Angle on the Bow.

I can certainly attest that it is possible (see the last slide in part 2 above). That is an actual hit using the process as outlined. I have repeated the success several times since on actual patrols with Map Contacts off... which is 10X more difficult that a situation where you already know course and speed.

However....

as this mod ratchets up the reality of this sim to new levels I have learned that, to be successful, you have to follow actual WWII US Sub doctrine. So what I have been doing is, before shooting, I confirm the solution with an observation and, if there are any discrepancies at all, I update the solution by using the Stadimeter to confirm the appx range and using the "Send Range/Bearing" button to update the bearing. This has increased my sucess rate substantially.

The other unintended benefit of this mod is that, after all of the work involved in getting a successful hit, when you get a dud it really hurts. It gives you a small aproximation of the frustration the real Captains must have felt.

JCC

John Channing wrote...Can you flesh this out? Are you taking radar readings? Are you turning off the PK? etc.

Nisgeis- I will try this with auto targetting.

What I am doing is pretty much exactly what is outlined in Parts 1 & 2 above. The only difference is that now when I make my shooting observation if I observe any measureable deviation with what the TDC is telling me I lock the scope , take a range/bearing reading, check the range with the Stadimeter to make sure it is close to what the TDC has running (and if you have been following the steps it will be) and I send the new range/bearing to the TDC and then shoot. All of this is with the PK running. I never turn it off unless there is a target zig, in which case I start all over again.

I don't think auto targetting will work as it takes over the TDC function (Nisgeis?). What worked for me was practicing with Map Contacts on so you can see where you are falling behind.

JCC

JCC

Locking the scope will update the TDC with actual real time data, so is like having the TDC running with the PK on, even though it's off. Or, you can lock the scope, then start the PK and from that point on the PK will update based on the target's attributes at that point in time (but not subseuently if for example it zigs). It's a good way to see what the TDC does when tracking a target, as you know the info will be 100% accurate. In that way you can use it to compare your radar measurements against the generated solution with the added peace of mind that the TDC solution is correct. It might help.

I tried shooting at long range in the test mission, just to verify it did work, but two near instantaneous prematures later the target was zigzagging madly with about three minutes left on the torpedo run time :88).

training mission 3
 

I am having problems. I am playing with map contacts on, as I still need a crutch. Here are two questions. I am after the tanker that is at 290 degrees approximatley in traning mission no. 3

1. When the target's bearing reads 301 degrees via sonar, but the periscope reads 305, for example, should I send range and bearing to the TDC at 301 or 305 degrees? I think Nisgeis said to send the periscope bearing to the TDC, as it is more accurate.
2. Now I want to plot the range and bearing on the Nav. Map. When I plot the bearing in question no. 1, should I plot with the sonar bearing (301 degrees) or the periscope bearing (305 degrees)? Sometimes the plot differential can be significant.
Here is the big question;
3. I am having a problem setting the target's course. I have plotted its course to be roughly 105 degrees. First, I change the stadimeter view to the Aob dial. Then I return to the TDC mod and move the triangle to 105 degrees on the target ship dial. However the target ship does not adjust its course to 105 degrees even when I return to the stadimeter and click on the Aob dial to send the course to the TDC. I must be doing something wrong, as the target's course doesn't adjust and remains at about 115 degrees, which is obviously incorrect. What am I doing wrong? Alternatively, what should I being doing? (I am using TMO 2.0)

That sounds right. I haven't had a problem doing it that way. Try adjusting the AOB directly in the periscope screen, and make sure it is adjusting.

razark
 

Your answer to question no. 3 doesn't cut it. The tutorial by the revered John Channing says that you drag the triangle on the mod to the target's course. I do that. I does not work. Channing? Nisgeis? Your turn, please.
(Christ, Captain, while you are fiddling with this new tool you call the TDC mod, the entire Jap Navy said right by us!)

Revered? Really?


Anyway... if you follow what I did in the video it has always worked for me. Not sure what is going on with yours.


JCC

Channing
 

Is this the video with no sound? If so, I will watch it again.

I just tried again
 

My Aob dial on the stadimeter is not snapping to the course set on the mod. Is it supposed to jump to the course or move slowly to the course set by dragging the triangle on the TDC target dial?

Leaving the above aside, the bottom line may be that this mod is simply too procedurally difficult to screw with. It takes a long, long time to set up, and I am having no success on practice lesson no. 3, even on the slow ship.

I played the mission out twice, once with the scope locked and the PK on and once with just the scope locked. In both cases I sank the tanker and the radar ranges and generated ranges were virtually identical throughout(when I only had the scope locked and the PK off the ranges didn't match up until the ship got within 9000yds). I did notice that the white triangle on the Target Course fast dial eventually drifted off of the 8° mark but when I went back and looked thru the scope it went right back to 8°.
I had to include this shot after all the frustration I've been having.
http://i982.photobucket.com/albums/a...221244_218.jpg

So Nisgeis, what does all this mean and how can I do this without using auto targetting?

Urge

urge
 

that is the puniest ship I ever saw.:haha: