[REL] Solution Solver 2.3

[ljqcn101]

There're other programs that can help you if you want your uboat moving all the time. Those are generally speaking TMA methods.

The Maneubo, if you're comfortable with clicking and setting numbers in a UI: http://www.adammil.net/Maneubo/

Or some TMA calculators, if you're comfortable with typing numbers in a console:

[ljqcn101]

Originally Posted by Pisces

(There are other 4 bearing methods that work in a different way and can be done moving all the time. See some PDFs in my lowest signature link. They have to be drawn manually on the map, Gutted's program doesn't work like that.)

Gutted's hydrophone tracker can still be used under a constant moving condition in some way. The theory is that, the same formula used to extrapolate the 4th bearing when stationary can also be used when ownship is moving at a constant speed & course.

[Pisces]

It can be used to predict the 4th 'imaginary' bearing. But the plot it provides falls apart if you are moving. You would need to plot your predicted position along the old course for the 4th instant and draw it on the map yourself anyway. Then find the intersection with the bearing from your actual position.

[ljqcn101]

Yes exactly. If someone wants to save time by using the hydrophone tracker to get the 4th 'imaginary' bearing then he/she could work this way.

When ownship is constantly moving, the plot this program provides can be deemed as a relative motion plot, which is also useful in a Maneuvering Board if someone wants to try out the historical 2x3 bearing method (https://www.subsim.com/radioroom/sho...d.php?t=240739), but it could be more time consuming too.

Anyways just some of the many ways to do TMA.

[Captain Prise]

neat app but how does the clock work? could anyone help me? thanks

[Pisces]

Originally Posted by Captain Prise

neat app but how does the clock work? could anyone help me? thanks

Be stopped, or only move forward while the periscope is pointing forward or aft and you are turned facing or away from the target.

Start the clock when the target starts crossing the line with it's bow.
Stop the clock when it leaves the line with the stern.

Look at the scales which are closest to the length of the target:
The needle crosses the scale where that length of target would have that speed. On the other length scale it would have a different speed. If your target has a speed somewhere in between you need to adjust the result to best reflect it.

If it has length 125m, then take the average of the crossing points on the 100m and 150m scale.

If it has length 110m, then take the difference in speeds indicated on both scales, divide by 5 (or shift the decimal to the left and multiply by 2), then add that to the speed indicated on the lower length scale.

It's not as useful if you want precision. But it indicates a quick ballpark.

Using the calculator side of the attackdisk can be much more straight forward quickly. Align target length on the yellowish distance scale with the time in seconds on the white time disk. Pointer on the time disk points to speed in knots on the yellowish speed scale (in the middle of it).

[gutted]

Originally Posted by Pisces

There is nothing wrong with your result. The example is somehow in error. Maybe made before a bug was fixed.

correct, and im too lazy to update the screenshot


Added a note under the hydrophone screenshot to not use it as an example.

[gutted]

version 2.3.4 was uploaded


Small fix for the settings dialog box. It was not reading the saved value for OwnShip default speed, and was always setting the control to the default value of 3.