Interceptor Sub

[Travis Reed]

Originally Posted by Silverwolf

It can handle those ranges. I just took the sub, no other mods installed, from San Fransisco to just off the coast of Japan. I was underwater for as long as I could be until the CO2 was too much. Made 4 trips there and back on the peroxide and nothing went wrong. I had the sub at flank the entire time.

How long does it take to recharge the batteries with that range? I may consider using it if something goes wrong with the batteries when I up the range.

I know nuclear subs are supposed to be able to travel at their maximum speed. That's one of the reasons I'm making the ranges so long. It's so you can travel at flank and not have to worry about the batteries going dead. That and the fact that the new battery max speed is 10 knots it pretty much forces you to use the peroxide engine when going over long distances.

Good to know SH4 doesn't croak with such values.

As for recharge time, I'd have to test it further. I'm not even certain if the numbers I've quoted you are going to be my final numbers. I ran them as part of a quick test to see if I could get some decent range and still be able to recharge. I drained the batteries to somewhere around 80-90% and then recharged them at 2/3 surfaced speed. With some time accel (I don't remember how much right now) I did note the battery charge going up. Once I can get better data (and possibly a better tweak), I'll let you know.

EDIT: I've managed to complete a better test and have found that it's not nearly as balanced as I'd like it to be. Left port, followed a course to a wide open space, all submerged at 40 knots. I surfaced only to deal with CO2. I exceeded the 1500NM I'd set and still had plenty of battery left. CO2 level was greater than 90/100 when I surfaced (surfacing at 40 knots is fun, BTW...). My battery level was only 77/100 when the diesels finally kicked in. Ran at 2/3 (using the telegraph settings I posted in an earlier post, which gives about 10 knots) and hit the timeaccel. More than 24 hours later, the battery level was only 88/100. I ended the test.

It seems that something I read elsewhere on these forums is true, to an extent. SH4 does not seem to use the range value for submerged endurance. At least, not in the way we expect it to. My batteries should have been dead or near dead after 1500NM. I also note, that at least the RPM value for the E_Propulsion isn't used. Instead it uses the RPM value from the surfaced portion of the propulsion (which may mean it also uses the surfaced range as well, though perhaps not the speed). Either way, I had far greater range than I'd set, and while I did manage to get it recharging, it was doing so too slowly to be of any real use. Further tweaking is in order. Note also, that the surfaced range was still set at 150k NM. You may wish to check to see whether it does use the RPM value for the Peroxide engine.