von Zelda |
02-11-07 01:23 PM |
Manual solution for zig-zag target
Quote:
Originally Posted by Killer-Carrot
as the title says. I am having problems with it. I usually miss all torpedoes i shoot at it.
I go to about 700 metres and sometimes get a lucky hit, but most of the times the ship im shooting changes course so i miss.
How do i sink them without wasting 4 torpedoes ?
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Target speed is the most critical factor in a manual torpedo solution. Since target is zig-zaging, its speed (from point A to point B) is less than its actual speed. So, if you use actual speed you will miss. Also, you must establish an angle on the bow to its true course.
Plot target's position on nav map (mark 1) and note the time. Now, estimate target's general course and get in front for a good firing position. By the time you do this the target should have traveled a good bit. So, mark a second point on the nav map (mark 2) and note the time.
Draw a line which represents the target's true course. Hopfully you've set up approximately 500 to 800 meters off this true course with a good firing angle. Using the angle tool draw a line to the intercept point of your zero bearing and target's true course which you have just established. Then mark the third point further down the line of target's true course. This is your angle on the bow (AOB) for the intercept point at a zero bearing. Set this number in your Target Data Computer. (When you input this number your periscope/uzo must be on the zero bearing.) You can now rotate the periscope or uzo and have an accurate AOB, don't change it.
Back to calculating target speed. Determine the time target traveled from mark 1 to mark 2 and then determine the distanced traveled from mark 1 to mark 2. Then use this equation to determine speed in knots. Distance in kmeters x 32.5 divided by minutes = speed in knots.
The more times you make this calculation from the original mark on the nav map, the more accurate your estimate of speed will be. Because the greater the time and distanced traveled in your equation, the lesser the affect for rounding of the meters and time will be. Manually input your estimate for relative speed into the TDC.
Manually input an estimate for distance into the TDC. Measure your distance to the intercept point of your course to that of the target's true course as plotted above.
Last, rotate and pick a bearing on the periscope or uzo that will give you a good 90-degree impact on the target as it travels along its course. Open outer doors and wait until it gets to this spot and fire.
Hope this is helpful.
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