[REL] Realistic Battery Life

[CCIP]

Should not be a problem, there is only one value in the submarine .sim file, and it was always in miles (even in SHIII which was metric-only).

You can test it easily - if a gato sub can stay underwater for about 24 hours at 4 knots, then it's fine. In stock game it would run out of power in about 5-6 hours.

[fire-fox]

hi CCIP good work just D/Led you crush depth's and battary's mod's and notesed that you isnt entry for the two S-bouts. and there isnt an entry for the new S-41's that where in the patch.

sorry if i just p!ssed on your effats but just thort you should k now

[CCIP]

S-42 is actually just a slight visual modification of the S-18 and shares all the same performance data (just like the Gar shares all performance data with the Tambor).

As for S-boats in general - as I mentioned in the request thread for this, I haven't been able to find any accurate data on the S-boats' submerged performance that is any different from what we get in game, so I left it alone for now. I get the sense that the S-boats are overmodeled (unlike the rest of the boats), but I can't prove it right now...

[Banquet]

I found this link;

http://www.navy.mil/navydata/cno/n87.../forgotten.htm

which gives these stats for S class;

Length:
225 feet Beam:
21 feet Draft: 17 feet
Displacement: 960 tons surfaced
1,130 tons submerged Surface Speed: 12-14 knots Submerged Speed:
10 knots Surface Endurance:
3,500 nm at 6.5 knots
Submerged Endurance: 20 hours at 5 knots
Complement: 4 officers; 39 enlisted men

[CCIP]

Yea, that's what I found too. But it does sound a bit odd to me - consider the fact that a fleet boat can only do a top of 64 miles at 5 knots, and surely when all is considered - a fleet sub can't be that much more hydrodynamically inefficient, and certainly has a far more powerful battery. 100 miles at that speed is a lot, the German U-boats have about 1/3 of that underwater range. So it doesn't quite make sense to me.

[Banquet]

It was probably the optimistic manufacturers claims and nothing like that in reality! Certainly seems a bit out of kilter with other subs stats.

I just tried your mod with an S class in the game. At 5 knots I got 23 hours before the battery was down to 10% which is a major improvement over vanilla. Thank you!

Slight downside was that it took 19 hours to charge it back up again. A Gato class took 4-6 hours to recharge. Is the recharge value a hardcoded figure based on battery drain time?

[CCIP]

Actually the mod didn't touch the S-class, so that is purely stock behaviour :p

I did, however, find some things I could add to the S-class file even without changing the performance. For example the boat's electric motor is set at the same power as the fleet boats (2700hp) whereas it was actually just 1500hp. Also, the game sets its max speed at 9kt while all the specs I've seen suggest between 10 and 11kt max speed. Not big changes, I know, but perhaps worth adding in.

I'm going to go to the library and see if anything at all is there. The S-class boat isn't the most popular subject in WWII sub history, so it does tend to be a little ignored. (very happy it's in the game though).

[Sulikate]

Thanks for the mod mate! My batteries were literally killing me

[StandingCow]

Thank you

[don1reed]

much gras, ccip

[Beery]

Hey CCIP. As usual this one looks great! Can I plug it into the RFB mod?

[Dustyboats]

Length (ft).........311.75
Beam (ft)...........27.25
Displacement (tons)....Surfaced 1526....Submerged 2424.
Speed (knts)..............Surfaced 20-25 design...17 Operation Average
Range.......................Surfaced 12000nm @ 10knts
Submerged 95nm @ 5knts.
Diving Depth.......300ft.
Complement........60.

The workhorse of the Pacific Campaign.
Note. I saw someone mention the Bathothermograph (SBT), (I think?). This did not get fitted to any US Boat until 1942. It then became the most important tool for many covert operations.....like the shallows around most of Honshu. It made possible some photography in and around Tokyo Harbour when a manned invasion was on the drawing board, prior to the Atom Bombs, not only of installations but minefields. I'm not too sure but I believe this may have been the "Herring-SS-233" that did this mission. As to depth of these boats it is recorded that the "Albacore-SS-218" made a depth of 450ft...and lived to tell the tale this time, though sadly struck a mine off NE Hokkaido 07/11/1944.

[melendir]

Great mod

[WilhelmSchulz.]

Is it jesme compatible?

[ReallyDedPoet]

Had a look at the file structure, it looks good to go

RDP