Sh3.exe and Asdic in shallow waters - Page 5

Stiebler · 11-05-11, 02:41 PM

From October 1944 - May 1945, U-boats with schnorchels patrolled very close to land around the British Isles, relying on the poor detection ability of Asdic in shallow waters, with their fast tides, large rocks and ancient wrecks.

SH3 does not model this failure of asdic in shallow water at all.

I have been looking at the problem, and have now a functioning double-code patch that changes asdic capability according to the depth of the sea. Specifically, the 'minimum surface' (MS) of asdics (original values found in file AI_Sensors.dat') are now changed according to sea-depth in four bands:
Depth > 150m: MS = 100 (m2, metres squared).
Depth >100m: MS = 150
Depth >50m: MS = 200
Depth < 50m: MS = 300.

These changes are not dependent on the year, they will apply throughout the war.

However, for some reason the properties (range, angle, MS, etc) of the asdics are not connected to their names, after loading into SH3. For this reason, I have found it necessary to use a unique value for asdic minimum surfaces, that is, the original value of 100.0 (in NYGM), for identification purposes. But other versions of AI_Sensors.dat use values different from 100.00 (eg GWX, value =0.0).

Therefore I have three queries:
1. Does anyone actually play SH3 around Britain in 1944-1945?
2. Will users be happy to change the minimum surface values of their asdics (only the asdics) to 100.00 in their files data\library\AI_Sensors.dat? It will require manipulation of this data file with a data editor (eg FileAnalyzer, or S3dtor), and the changes cannot be made with a text editor. [Thought: perhaps I could supply these files for stock and GWX as part of the patch-kit.]
3. NYGM has always used the MS=100.00 values, but my other choices of 150, 200 and 300 for decreasing depths are pure guesses. Would anyone be interested in testing this mod, once I have settled the other issues above? It will require a revised SH3Sim.act file, which I can supply, and an extra patch-kit for H.sie's V16A3 patch for SH3.exe.

Otherwise, I shall just keep the mod to myself!

Stiebler.

11-05-11, 02:41 PM	#1
Stiebler Fuel Supplier Join Date: Oct 2005 Location: London, UK Posts: 1,237 Downloads: 29 Uploads: 4	Sh3.exe and Asdic in shallow waters From October 1944 - May 1945, U-boats with schnorchels patrolled very close to land around the British Isles, relying on the poor detection ability of Asdic in shallow waters, with their fast tides, large rocks and ancient wrecks. SH3 does not model this failure of asdic in shallow water at all. I have been looking at the problem, and have now a functioning double-code patch that changes asdic capability according to the depth of the sea. Specifically, the 'minimum surface' (MS) of asdics (original values found in file AI_Sensors.dat') are now changed according to sea-depth in four bands: Depth > 150m: MS = 100 (m2, metres squared). Depth >100m: MS = 150 Depth >50m: MS = 200 Depth < 50m: MS = 300. These changes are not dependent on the year, they will apply throughout the war. However, for some reason the properties (range, angle, MS, etc) of the asdics are not connected to their names, after loading into SH3. For this reason, I have found it necessary to use a unique value for asdic minimum surfaces, that is, the original value of 100.0 (in NYGM), for identification purposes. But other versions of AI_Sensors.dat use values different from 100.00 (eg GWX, value =0.0). Therefore I have three queries: 1. Does anyone actually play SH3 around Britain in 1944-1945? 2. Will users be happy to change the minimum surface values of their asdics (only the asdics) to 100.00 in their files data\library\AI_Sensors.dat? It will require manipulation of this data file with a data editor (eg FileAnalyzer, or S3dtor), and the changes cannot be made with a text editor. [Thought: perhaps I could supply these files for stock and GWX as part of the patch-kit.] 3. NYGM has always used the MS=100.00 values, but my other choices of 150, 200 and 300 for decreasing depths are pure guesses. Would anyone be interested in testing this mod, once I have settled the other issues above? It will require a revised SH3Sim.act file, which I can supply, and an extra patch-kit for H.sie's V16A3 patch for SH3.exe. Otherwise, I shall just keep the mod to myself! Stiebler. __________________ NYGM Tonnage War Mod - More than a mod: it's an experience!