Another way for manual TDC 100% realistic

[MudMarine]

Originally Posted by Hitman

No the one I use for AOB calculation is another, which I have not yet made publically available. The one you know is the reverse side of the MK3 Submarine Attack course finder, which allows you to calculate everything but you must still guess the AOB. What I have is another wiz wheel that is purposedly built for AOB calculation, so once I get it I plug into the TDC and later in the MK3 if I see I will hve enough time to do a proper plot and confirm speed data.

My second tool has one wheel for scope vertical marsk and another for horizontals. Aligning the number of horizontals with the verticals you see through your scope, you get instantly the new aspect ratio. Moving then the wheel to align this new aspect ratio with the old one, you read instantly the AOB. As I said, a matter of 5-10 seconds.

Cheers

This will be worth waiting for. Please Post a thread and keep us posted as to it developement.

[Puster Bill]

Originally Posted by Hitman

No the one I use for AOB calculation is another, which I have not yet made publically available. The one you know is the reverse side of the MK3 Submarine Attack course finder, which allows you to calculate everything but you must still guess the AOB.

That's not entirely true, Hitman.

You can indeed get the AOB from the reverse side of the MK3 Submarine Attack Course Finder, as well as the back side of your Kriegsmarine version.

However, for it to be an ACCURATE AOB, you must be stationary, or nearly so compared to the target. One knot is the speed at which I do this, if submerged, or if a surface night attack I go to All Stop.



Lets say you took two sightings on a target:

OBS A - 8000 yards, 80 degrees
OBS B - 5100 yards, 50 degrees

The difference between 80 and 50 degrees is 30 degrees. We align the middle wheel of the backside of the SACF so that 30 degrees spans the difference between 5100 yards and 8000 yards on the outer wheel. It should look like this:



Notice that the 65 degree mark is under the range for OBS A (8000 yards) and the 35 degree mark is under the range for OBS B (5100 yards). That 65 degrees under the range for OBS A is the AOB for OBS B, and the 35 degrees under the range for OBS B is the AOB for OBS A.

Here it is plotted out on a maneuvering board, and I verified it with a protractor:



Angle D-A-C (the 'D' is cut off, is is at the top left of the image) is 35 degrees, and the angle D-B-C is 65 degrees.

You don't need a separate AOB calculator wheel, the SACF and the Kriegsmarine wheels will do it for you (although for an AOB greater than 90 degrees, the SACF is superior, because you don't have to do the math in your head to subtract the angle from 180 degrees, it's right there on the wheel).

You still have to resolve it port or starboard. I do it in my head, usually, but in this case we are obviously to the port of the target ship.

I unlock the scope immediately after my second observation, do the wheel calculations, and enter the distance for OBS B, the angle underneath OBS A, and the speed from the calculation that I haven't shown, into the TDC. Then I re-lock the scope on the target.

It's accurate enough that I never bother with the front of the wheels, I get all the information that I need from the back.

[Hitman]

Bill,

yes I know that, but I meant actually that I have developed another wheel for the aspect ratio method, and that the MK3 and KM wiz wheels were actually designed to start from a guesstimate of the AOB. Of course you can calculate the true AOB with them after 2 observations, but I wanted another tool that gives me the AOB to input in the SH4 tool directly with just one scope observation.

P.S. I will not keep posting in this thread as I think I'm "hijacking" it Apologizes kv29, you did a great tutorial

[Puster Bill]

Oh, OK Hitman. Didn't quite realize you were talking about a 1 observation firing procedure. That would be handy for those 'off the cuff' shots that happen at short range.

[kv29]

Don´t worry Hitman, we are all contributing here. I believe its important for SH newbies to know there are several paths to achieve the same thing, making the game far more interesting. Im currently using all the techniques discussed here in the forums, and all vastly improved my gameplay

[MONOLITH]

This is great stuff.

Thanks guys.

*off to practice*