SUBSIM Radio Room Forums - View Single Post - Destroyers Discussion (getting rid of pin point drops)

caspofungin · 11-24-05, 01:08 PM

i'm getting there, and starting to understand things a little more...

1. inc noise factor ridiculously nerfs escort hydrophones -- at 50, they can't pick me up repairing, flank speed. tweaking this value down to try and get a level where dc explosions makes them lose hydrophone effect.

2. in my initial test, min height -10, sonar beam elevation 90-116 (i believe that sky and water hemispheres are not mirrored -- 0 straight up, 90 dead level, 180 straight down), hydrophones nerfed.

results -- if i was at 150m, sonar contact lost (they stopped pinging, stealh meter green) at about 800m distance, at 70m depth contact lost at approx 400m distance. this didn't correlate to a 26 degree sonar beam -- until i subtracted 10m (the min depth). then the numbers make sense.

test -- set min depth to 0, hydrophones again nerfed w/ noise factor, now the range of contact loss corresponds to a 26 degree sonar beam (irl beams were 16 deg wide, but in technical diagrams they always seemed to be angled down slightly.) eg at depth 100m, contact lost at approx 500m, at 50m lost at approx 250m. the actual numbers, when calculated, give a beam of 11-15 degrees, i believe this error is due to poor range calculation by myself. i suppose i could be exact, run a test wher my sub has s-gerat and ping the escort for range, but things are close enough for me -- in terms of beam geometry. we can always set min elevation as 92-100 to simulate surface effect.

so, think i have the basics sorted. the escort can ping you while you're w/in the actual beam, loses contact when you're out. at that point, all detection is hydrophone based -- if you're running silent, he won't detect you. if you are in the baffles of the escort, you're invisible to him regardless of depth, speed, noise making.

11-24-05, 01:08 PM	#103
caspofungin Commander Join Date: Apr 2005 Posts: 459 Downloads: 41 Uploads: 0	i'm getting there, and starting to understand things a little more... 1. inc noise factor ridiculously nerfs escort hydrophones -- at 50, they can't pick me up repairing, flank speed. tweaking this value down to try and get a level where dc explosions makes them lose hydrophone effect. 2. in my initial test, min height -10, sonar beam elevation 90-116 (i believe that sky and water hemispheres are not mirrored -- 0 straight up, 90 dead level, 180 straight down), hydrophones nerfed. results -- if i was at 150m, sonar contact lost (they stopped pinging, stealh meter green) at about 800m distance, at 70m depth contact lost at approx 400m distance. this didn't correlate to a 26 degree sonar beam -- until i subtracted 10m (the min depth). then the numbers make sense. test -- set min depth to 0, hydrophones again nerfed w/ noise factor, now the range of contact loss corresponds to a 26 degree sonar beam (irl beams were 16 deg wide, but in technical diagrams they always seemed to be angled down slightly.) eg at depth 100m, contact lost at approx 500m, at 50m lost at approx 250m. the actual numbers, when calculated, give a beam of 11-15 degrees, i believe this error is due to poor range calculation by myself. i suppose i could be exact, run a test wher my sub has s-gerat and ping the escort for range, but things are close enough for me -- in terms of beam geometry. we can always set min elevation as 92-100 to simulate surface effect. so, think i have the basics sorted. the escort can ping you while you're w/in the actual beam, loses contact when you're out. at that point, all detection is hydrophone based -- if you're running silent, he won't detect you. if you are in the baffles of the escort, you're invisible to him regardless of depth, speed, noise making.