Yes. I just did a major test to fix the Snorkel / airplane spotting problem.
The mod listed for the Snorkel_Radar fix will help from hiding from radar. But listen to this.
I made the enemy Visual range to zero to get it out of the way. The Snorkel is not detected at all April 1943 by several radars, A Flower Corvette type 286 had a range of 3 km at 1.5m MinSurface modded to 2.5m. You extend the Snorkel completly high up.
Also Catilina airplanes using the ASVMark I radar set for that 2.5m never picks you up with radar.
Nor the aircraft carrier using SP radar set for 0.3m modded to 1.5m.
The problem is that the Snorkel VISUAL size is Huge!
It is not radar that is causing the problem per say.
If you are cruising with snorkel underwater, the airplanes sees the Snorkel Visual area as extremely big. And they attack from far away. It is not the radar.
I am going to put the original values for radar back in with the Visual enemy AI set to zero to shut it off, and test the default values to pick up the Snorkel, to see if changing the radar signature has any real effect.
Unfortunatley, I cannot find the data for the Snorkel VISUAL surface area to lower it to something a bit bigger than the periscope size. As it is now, the game thinks the Snorkel is as big as your submarine.!!
You can only use it if you barely have it above the water.
Unless I can find the Visual data for the Snorkel, So far no luck at all, only a 'reduction' of MinHeight to Visual sensor in the AI_Sensors.dat file from zero to say 1.5m will let you snorkel better without being seen. Of course your scope is even more invisible. This is not the greatest solution for this problem.
It would make you periscope and snorkel invisible below 1.5m and maybe you could go flank speed and the ship will never see you. I need to test this in game and see what happens, if this could be used as a viable fix. Least I fix one thing, and breaks another part of gameplay mechanics.
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