SUBSIM Radio Room Forums - View Single Post - GWX - any use for submerged speeds other than silent and flank?

johnno74 · 06-06-07, 05:37 PM

Your sub gets very poor "battery economy" running at flank. You can drain the batteries in only an hour or two at flank speed. At standard, or 2/3rds you'll get 2 or 3 times the endurance, for only a slight drop in speed.
Someone here can probably give us a table of endurance/range for each of the speed settings...

Also, there isn't a linear relationship between submerged speed and noise produced. I haven't done any comprehensive testing but I'd guess at flank speed you'd be producing twice as much noise as at 2/3rds speed.

So, if you are stalking or evading a ship at medim range you can safely use 2/3rds ahead, but hit flank and they would hear you immediately.

I generally only use 1/3 if I'm within 2km of a warship, or if I'm already in position and I'm just waiting for my target to arrive.

06-06-07, 05:37 PM	#5
johnno74 Planesman Join Date: Nov 2006 Location: Melbourne, Australia Posts: 197 Downloads: 5 Uploads: 0	Your sub gets very poor "battery economy" running at flank. You can drain the batteries in only an hour or two at flank speed. At standard, or 2/3rds you'll get 2 or 3 times the endurance, for only a slight drop in speed. Someone here can probably give us a table of endurance/range for each of the speed settings... Also, there isn't a linear relationship between submerged speed and noise produced. I haven't done any comprehensive testing but I'd guess at flank speed you'd be producing twice as much noise as at 2/3rds speed. So, if you are stalking or evading a ship at medim range you can safely use 2/3rds ahead, but hit flank and they would hear you immediately. I generally only use 1/3 if I'm within 2km of a warship, or if I'm already in position and I'm just waiting for my target to arrive.