Quote:
Originally Posted by magic452
Use the three minute rule three times, 9 minutes. This will give you a very accurate speed, down to a quarter knot. It will also give you a very accurate target course. Remember that radar updates are every 20 seconds. Start your measurements at an update.
Use the compass rose to get that course in degrees, remember this reading.
First set speed and send to TDC.
To set AoB turn the AoB data input dial about what you guess is the Aob and send to TDC. The target ship dial on the top left side will turn.
Adjust the data input dial till the target ship dial shows the very same target course that you read off the compass rose. With the PK on that course will remain constant, if it does you have perfect AoB.
You also have very good speed +/- 0.5 knots.
You can do all this off radar readings so you have 2/3 of your firing solution and haven't seen the target yet.
If you don't have radar yet sonar will give you the same result but will take a bit more work.
With the 3D TDC you can set range to your best guess and point the scope at the target, estimate from the nav. map, and the PK will track the target for you. Radar updates will show what you need to do to get a good firing solution.
If the target stays on course and the AoB doesn't change all you need is a couple of steadimeter readings for range when the target gets closer and your all set to go.
Magic
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Magic did a good job of explaining me, so I won't add much, but here are a few SS I once took.
I took about 3 stad readings {using SCAF}. Just finished the reading and asked for speed which gives you the speed of 8kts, course 60, so I accept speed and spin the AOB wheel and set it on 60. I use Easy AOB, which allows you to spin the dials freely, but you can adjust either way.
So here on the map screen I had also been plotting his course with markings, notice his course is 60 true, that matches
my stad readings perfect.
You can use stad, radar {3D radar a must} or visuals with 3 minute rule, depending if you have contacts on or off, but once you have his course, you basically have a perfect AOB. Won't add the attack SS's, but range was about 2000 yards, I shot 4,..I unlock and shoot by the wire, all hits bow to stern.
Course that goes out the window if he spots you, but if they just do the small helm zags, you still have his base course, just have to update speed and range.