Underwater range and endurance

Sniper297 · 02-20-14, 11:12 AM

I know there's been discussion about the S boats submerged range and recharge time, but I noticed the range is a problem for all the fleet boats as well.

All the data I can find indicates all US fleet boats from Porpoise to Balao, and the U-boats from type VII on, list endurance as 48 hours at 2 knots. So 96 miles in 48 hours before the batteries are dead.

Not getting that here, at 2 knots the battery is down to 50% after 14 hours, down to 10% after 26 hours. Total range about 50-55 miles.

So I started tinkering with the files;

\Data\Submarine\NSS_Gato\NSS_Gato.cfg

and

\Data\Submarine\NSS_Gato\NSS_Gato.sim

CFG is pretty simple so the surfaced and submerged speed percentages use the same datablock;

[Unit]
ClassName=SSGato
3DModelFileName=data/Submarine/NSS_Gato/NSS_Gato
HumanPlayable=YES
Interior=data/Interior/NSS_Gato/NSS_Gato
UnitType=200
MaxSpeed=21
MaxSpeedSubmerged=9
Length=95
Width=8.3
RenownAwarded=130

[EngineProperties]
AllStop=0.00
AheadSlow=0.40
AheadOneThird=0.57
AheadStandard=0.80
AheadFull=0.94
AheadFlank=1.00
BackSlow=-0.26
BackStandard=-0.40
BackFull=-0.53
BackEmergency=-0.66

40% of 9 knots is 3.6, so you have to switch to the knots dial to manually set 2 knots for the cruise test.

In the SIM file;

11:unit_submarine

Under the ranges\submerged it's;

miles=96
knots=2

Which is the correct values, but starting a career with a brand new sub diving to 100 feet and cruising at 2 knots I don't GET 96 miles, I get half that.

So I added more to the range including ridiculous numbers like miles=2500 but still don't get anywhere near 96 miles at 2 knots. Did the programmers make a m!$Take converting from metric hectares to nautical miles, or is there another file I'm missing that affects submerged range and endurance?

02-20-14, 11:12 AM	#1
Sniper297 The Old Man Join Date: Dec 2005 Location: Philadelphia Shipyard Brig Posts: 1,386 Downloads: 160 Uploads: 19	Underwater range and endurance I know there's been discussion about the S boats submerged range and recharge time, but I noticed the range is a problem for all the fleet boats as well. All the data I can find indicates all US fleet boats from Porpoise to Balao, and the U-boats from type VII on, list endurance as 48 hours at 2 knots. So 96 miles in 48 hours before the batteries are dead. Not getting that here, at 2 knots the battery is down to 50% after 14 hours, down to 10% after 26 hours. Total range about 50-55 miles. So I started tinkering with the files; \Data\Submarine\NSS_Gato\NSS_Gato.cfg and \Data\Submarine\NSS_Gato\NSS_Gato.sim CFG is pretty simple so the surfaced and submerged speed percentages use the same datablock; [Unit] ClassName=SSGato 3DModelFileName=data/Submarine/NSS_Gato/NSS_Gato HumanPlayable=YES Interior=data/Interior/NSS_Gato/NSS_Gato UnitType=200 MaxSpeed=21 MaxSpeedSubmerged=9 Length=95 Width=8.3 RenownAwarded=130 [EngineProperties] AllStop=0.00 AheadSlow=0.40 AheadOneThird=0.57 AheadStandard=0.80 AheadFull=0.94 AheadFlank=1.00 BackSlow=-0.26 BackStandard=-0.40 BackFull=-0.53 BackEmergency=-0.66 40% of 9 knots is 3.6, so you have to switch to the knots dial to manually set 2 knots for the cruise test. In the SIM file; 11:unit_submarine Under the ranges\submerged it's; miles=96 knots=2 Which is the correct values, but starting a career with a brand new sub diving to 100 feet and cruising at 2 knots I don't GET 96 miles, I get half that. So I added more to the range including ridiculous numbers like miles=2500 but still don't get anywhere near 96 miles at 2 knots. Did the programmers make a m!$Take converting from metric hectares to nautical miles, or is there another file I'm missing that affects submerged range and endurance?