Manual targeting

[teg916]

So I was practicing my targeting and I seem to be able to do fairly well with manual targeting in good weather. However in bad weather I seem to do a horrible job of measuring the range to my target. I was using the attack periscope to measure the range and I kept getting a range that was way off. Like 1600 Meters when it is actually about 900 meters.

I was using the weapons officer to determine how far off I was by making my own solution, then asking him for a firing solution and comparing the numbers so I had an idea of how far off I was.

Any tips for a good way to get the range to the target in bad weather?

[TigerShark808]

I'm a few months into this manual targeting...and i have played this game for almost 3 years.

Weather and wind will play havoc on you.

Dont give up!

[sharkbit]

If you can, set your sub up on a course perpindicular to your target's course and set your scope/UZO to where the gyro angle reads 000 and shoot when the area of your target you want to hit is lined up with the vertical crosshair.

Range is not a factor with a 0 gyro angle and a perpindicular course.

This assumes you have target speed and the AOB set correctly on the TDC.

See this link for the quick 90 method(if you haven't seen it already):
http://www.paulwasserman.net/SHIII/



Oh yeah:
Welcome aboard!

[Melonfish]

aye even in bad weather i seem to be hitting as long as i'm on a rough 90° aob.
remember you don't need range to calc speed just time how long he takes to get between a coupld of points and calc on the nemograph

[teg916]

I am confused.

Wouldn't the range to target change the gyro angle of the computer? If I shoot at a ship at a 90 degree AOB from 1000 meters away wouldn't the torpedo have to lead the ship more than if I am 500 meters away?

Or is there something I am missing?

[JMV]

TORPEDO LEAD ANGLE

================================================== ==

Lead Angle = Arctan ( Target speed / Torpedo speed)

So if the target is making 12 knots, and you wish to fire a 30 knot T-III electric, then your lead angle is...

Lead Angle = Arctan ( 12 / 30 ) = 21.8 degrees

As long as you're within 5000 metres of the target track.

Another way to figure how much to lead 'em is via the Law of Sines, i.e.,

arcsin ( sin AOB ( Target speed / Torp speed ))

if AOB = 90; Target speed = 25; and Torp speed = 40, then Offset Angle of Collision (OAC) = 39 degrees

[sharkbit]

Originally Posted by teg916

I am confused.

Wouldn't the range to target change the gyro angle of the computer? If I shoot at a ship at a 90 degree AOB from 1000 meters away wouldn't the torpedo have to lead the ship more than if I am 500 meters away?

Or is there something I am missing?

Nope.
Try it. Set your scope at 000 gyro angle, go to the TDC, adjust the range. The gyro angle should stay the same.

There's a thread somewhere that shows this graphically. I'll see if I can find it, but not until tomorrow probably.