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Old 04-13-15, 04:19 PM   #1
Sniper297
The Old Man
 
Join Date: Dec 2005
Location: Philadelphia Shipyard Brig
Posts: 1,386
Downloads: 160
Uploads: 19
Default TDC, PK, manual targeting, corrections.

Playing around with CapnScurvy's OTC mod, set up my own mission so I already know what the target's actual speed and course are. Also playing with map contact updates on as "training wheels" so I can check the accuracy of my range observations and measure the true AOB.

Couple things about manual targeting, bearing is a no brainer and impossible to screw up, point the scope at the center of the target and there's the relative bearing. Range is more iffy even with OTC especially at longer ranges when you can't actually see the tops of the masts. AOB forever eludes me, difference between port 5 and port 10 takes an eye better than mine. Fortunately if I have the PK on it automatically tracks range - bearing - AOB and updates them with each new input.

One thing I'm missing, and a google search don't mention it one way or the other - what about speed calculations? If I have an exact range and bearing and take another perfect range and bearing X minutes and seconds after the first, I can run a course track between two points, and using the time it took for the target to get from point 1 to point 2, come up with a really close solution to the actual speed of advance.

TDC is an analog mechanical computer rather than the electronic digital gadget I'm typing this on, but if it didn't have a circuit to calculate speed automatically and correct it automatically based on each input - update it really should have. Theoretically I should be able to get a range and bearing, wait 5 minutes and input another range and bearing, the TDC should be able to figure out just from simple geometry and clock, using the difference between the two points and time elapsed, (1) target speed and (2) actual AOB. If it worked the way I think it should have worked, I should be able to leave speed and AOB at zero, input two range and bearing positions, and the TDC would give me something in the neighborhood of the actual speed and AOB without mussing its hair.

Anyone know the actual dope on the WWII TDC? Did the developers get this wrong and leave out some actual capabilities?
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