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Old 08-25-07, 07:23 AM   #14
greyrider
Watch Officer
 
Join Date: Apr 2005
Location: massachusetts
Posts: 334
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i dont know, but if you guys still insist on making things difficult for yourselfs,
who am i to get in your way.
but i just thought i would post some shots to back up what i posted.
last nite i played alittle, in the campaign, and a lone destroyer came upon me while i was traveling
to my objective., i was far enough ahead of him, that i could just submerge, wait til he goes away,
and then continue toward my obj.
i thoght this would be a good example of what i was talking about, so i started taking pictures.
i missed this target, i identified this target as an asashio class, it was a minekaze class dd, which threw off my speed calculations by 2 knots.
i didnt realize the dd was minekaze until after she passed my zero degree bearing without being hit.
but this is still a good example on getting into a 90 degree collision course with the target, just by sight alone.
the dd appeared to my rear, i submerged, then began to turn to starboeard, setting up my target to get on bearing 280, the target
will be closing from the port side. from his AOB, i can see its shallow, and all i will have to do is turn, and stop.

in the pic above, the target is falling toward bearing 280, with the sub turning to starboard.

below in pic 2, i have gotten my target on 280, and cut my engines, coming to a full stop, in this picture, the triangle, right triangle, is now set.


now in pic 3 below, this is the reason why i missed this target, i had id the target as asashio.

pic 4, the target continues to approach, on bearing 290 now, closing toward my zero.

in pic 5, the dd continues to close, toward bearing 300. see how beautiful the 90 is being set up? in a minute or so, my SO, should be singing the constant distance song.

at this point, i have to stop, because imageshack, just went off the air for awhile, i cant upload ppics to it at the moment, so i will finish this later.

in pic 6 , the dd continues to advance to my zero bearing, the torpedo is set to run straight and true, when it fires
by leaving it alone, the only setting i change is torpedo depth, which in this case, 2 meters is enough, so i left it as default.


pic 7, continuing the advance,


pic 8, the destroyer advances close to the attack bearing of 340, in a perfect 90, the scope is set to 340, and waiting for the target.


somewhere before i had calculated the speed, using the time passed from the bow of the dd to the stern,passing the vertical aiming wire,
and got 17 seconds, for an asashio dd, that would be, 13 knots, therefore my attack bearing will be 340 port, for a 36 knot mk10 torpedo.
thinking thats what i had, an asashio class destroyer, i waited until the destroyer got on bearing 340, and i fired the torpedo.


pic 10, the torpedo has been fired, the target is almost at zero degrees, where it should be blown out of the water in a few seconds.

pic 11, just about there, a few seconds away from collision with the torpedo.

pic 12,
there is no pic 12, this picture should have been the one that showed the torpedo hitting the destroyer, but the real picture
here should of been of my face, when i watched the whole length of the ship pass my aiming wire without being hit, i looked around for answers,
it wasnt torpedo depth or bad positioning, it was bad identification of the ship, realizing it was a minekaze now, i recalculated the speed, and the speed of
the destroyer was in reality 11 knots, my torpedo passed his bow at the collision point before the destroyer got there.
but at any rate, this shows that you dont need the targeting mechanics of the pk, how you can get on 90 courses to targets without plotting.
you can also use hydrophones, at great distances, getting target on the 80 degree offsets i spoke about, and keep them on the 80 degree offsets,
as much as possible, if they drift in sound bearings,( advancing in bearings, either forward or to the rear of you, move forwaed, or backward, keeping them on 80 degree offsets, until you
make visual contact with them.
by keeping them on 80 degree offsets, your shrinking the right triangle, and keeping the ranges manageable.
i hope this helps out alittle, i will play the game alittle later, and when i come across something again, ill take pictures, this time, with a torpedo hit
and a convoy attack.

Last edited by greyrider; 08-25-07 at 01:04 PM.
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