My Setings For XXI Battery Recharge Time/Range.

[evan82]

New 2013 engine/battery settings for XXI
************************************************** *******
More powerfull disel engine - faster battery recharge time, but more noisy boat (more easy to detect) with difrent stability!!!:/\\!!
Maybe someone fix this XXI problem in the future by editing hard code for XXI players:hmm2:
************************************************** *******
If You decide to use my settings, You should start a new carrer. Don't forget to delete also old folder with saves for remove all temp files.

What You should have alredy:
1. Fixed battery recharge in XXI. [From 0 - 100% recharge. Full]
2. Silent3Ditor Program (S3D) [for editing XXI Sim file] Link to program:
http://sh4.skwas.net/downloads.aspx

With my settings max snorkel speed = 17Kt.
Recharging batteries takes about 7 hours from 10% to 100% of power.
************************************************** *****
These new settings means the best balance between range, battery recharging time, and noise emisive by XXI - at least for me. XXI ability to staying as silent as possible should be very important. However, I newer tested it with GWX. Now XXI is about 16,7% easier to detect
than vanila XXI. But we can't skip this, if we need to recharge batteries on time.
************************************************** *****

So let's start:arrgh!::

File: Ubisoft/SilentHunterIII/Data/Submarine/NSS_Uboat21/NSS_Uboat21.sim need to be open in Silent3Ditor program.

New settings should look like these in red colour

1.
unit_Submarine-->unit_Ship-->Propulsion:
max_speed=15,6
eng_power=5250,0
eng_rpm=520,0

2.

unit_Submarine-->E_propulsion:
max_speed=17,2
eng_power=5000,0
eng_rpm=560,0

3.

unit_Submarine-->Ranges-->Submerged:
miles=280,0
knots=4,0


Another file: Ubisoft/SilentHunterIII/Data/Submarine/NSS_Uboat21/NSS_Uboat21.CFG should be open in Windows Notepad:

Speeds:

ClassName=SSTypeXXI
HumanPlayable=YES
Interior=data/Interior/NSS_Uboat21/NSS_Uboat21
UnitType=200
MaxSpeed=15,6
MaxSpeedSubmerged=17,2
Length=76.7
Width=6.6
Draft=6.3
RenownAwarded=200

New gears:

[EngineProperties]
AllStop=0.00
AheadSlow=0.17
AheadOneThird=0.35
AheadStandard=0.49
AheadFull=0.75
AheadFlank=1.00
BackSlow=-0.17
BackStandard=-0.35
BackFull=-0.49
BackEmergency=-0.90

Gears are optional.
----------------------------------------------------------------------------------------------------
About XXI stability problem when disel power is very strong.
Always when the power of the disel engine is set up for very stronger value than the power of the electric engine [for faster battery recharge time], XXI sub has tendency to sway to much, especially in the big storm, and at the periscope depth or snorkel depth. This can be fixed.:yep: We need to change gravity height of the boat from the orginal 2,8 to 1,5

Once again we need to open "NSS_Uboat21.sim" file in the Silent 3ditor program, and we change the "gc_height" parameter for 1,5. For example:
http://img169.imageshack.us/img169/9594/screenshot001bs.jpg
One more thing. Underwater up and down drag increased and angle of the dive planes [for better compatible with the new gravity center height]:woot:;
unit_Submarine-->unit_Ship-->obj_Hydro-->Submerged-->drag:
LR=** - You don't need change this ** value in Your sim file, but maybe You should know what this is. This is left and right turn ability of the boat. [Submerged]
UD=0,17

You can test this for Your favourite setting, however these are the optional settings and You can left orginal 0,15 here.:know:

You can find the LR surface turn ability for XXI under this line in the XXI sim. file:
unit_Submarine-->unit_Ship-->obj_Hydro-->Surfaced-->drag

Angle of the front and rear dive plane should be changed for stronger trim when boat diving or surfaceing:

unit_Submarine-->Front_diveplane:
drag = 0,04

unit_Submarine-->Rear_diveplane:
drag = 0,04
:ping:

Additional Info for GWX users;
In the GWX XXI sub. using supercharger for upgrade disel speed.
With supercharger You probably will be sail faster on my settings.
19+Kt on the snorkel for example. You can remove supercharger from XXI, but then You need to start a new career.:yawn:
How to remove supercharger?

Open this file in Windows Notepad:
Ubisoft/SilentHunterIII/Data/Cfg/Basic.Cfg

Now find all lines for XXI in this file [all XXI lines simmilar to this line]:

Year2=1945
ForeTube20=3 ;T1
ForeTube21=3
ForeTube22=6
ForeTube23=6
ForeTube24=4
ForeTube25=4
ForeResIntern20=3
ForeResIntern21=3
ForeResIntern22=3
ForeResIntern23=3
ForeResIntern24=3
ForeResIntern25=6
ForeResIntern26=6
ForeResIntern27=6
ForeResIntern28=6
ForeResIntern29=1
ForeResIntern210=1
ForeResIntern211=1
ForeResIntern212=1
ForeResIntern213=4
ForeResIntern214=4
ForeResIntern215=4
ForeResIntern216=4
Z01_20=12 ; IX/3
A01_20=9
A02_20=9
SuperCharger_20=-1 "-1" must be set up here for no disel upgrade
Snorkel_20=1262
Batteries_20=1269
AftBatteries_20=1269
Hydrophone_20=1272
Sonar_20=1274
Radar_20=1278
RadarWarningReceiver_20=1282
Decoy_Launcher_20=1287
SonarCoatings_20=1303
RadarCoatings_20=1305
Renown2=30000

Change this file manually in the notepad. Write "-1" number for all XXI years. This is all.
And backup Your orginal files before any changes.
___________________________________________

About XXI:
http://www.uboat.net/types/xxi.htm
http://www.uboat.net/men/schnee.htm
http://www.uboatarchive.net/DesignStudiesTypeXXI.htm
http://en.wikipedia.org/wiki/Type_XXI_submarine
http://pl.wikipedia.org/wiki/Okr%C4%99ty_podwodne_typu_XXI
http://www.militaryfactory.com/ships/detail.asp?ship_id=Type-XXI-Uboat
http://www.uboataces.com/uboat-type-xxi.shtml
http://www.ipmsstockholm.org/magazine/2003/11/detail_uboot_xxi.htm
http://www.advanceddivermagazine.com/articles/u2513/u2513.html
http://ww2total.com/WW2/Weapons/Warships/Submarines/German/U-boats/Type-XXI.htm
http://www.fact-index.com/t/ty/type_xxi_u_boat.html
http://www.battle-fleet.com/pw/his/uboat20.htm

************************************************** *******

[difool2]

Sounds great, but how exactly is this an improvement over what GWX has done with the XXI? [No snark intended, geniunely curious] If you are talking about modding vanilla, yeah it sure needs it, but the GWX guys already beat you to the punch, and I am happy with the charging/discharging times they used. Personally I don't like to let it get below 60%, as that robs me of any tactical flexibility/reserve power; at that % it requires about a 4 hour snort to get back to 100%.

[evan82]

Sounds great, but how exactly is this an improvement over what GWX has done with the XXI? [No snark intended, geniunely curious] If you are talking about modding vanilla, yeah it sure needs it, but the GWX guys already beat you to the punch, and I am happy with the charging/discharging times they used. Personally I don't like to let it get below 60%, as that robs me of any tactical flexibility/reserve power; at that % it requires about a 4 hour snort to get back to 100%.
So if I understand correctly the recharging baterry process from low power to full take 4 hours?:hmm: I ask because I don't use GWX. But how about E_propulsion in GWX? I write erlier what hapends if this setting is tuned to low.:hmm: If You talking about recharging form 60% to 100% it means my settings are probably simmilar, but what about swimming haracteristics of the boat? How about max rengas at speed, and recharging baterries times from low energy to max?

[difool2]

4 hours to go 60% to 100%. Like I said, without having done much extensive & rigourous testing (for the sake of testing), GWX seems pretty spot-on for the XXI. They also modded out the bug where the snorkel has the same visual size, to the enemy, as does the whole boat. If anything the boat should be limited to 8-10 knots when snorting, but I don't think that is moddable.

[evan82]

4 hours to go 60% to 100%. Like I said, without having done much extensive & rigourous testing (for the sake of testing), GWX seems pretty spot-on for the XXI. They also modded out the bug where the snorkel has the same visual size, to the enemy, as does the whole boat. If anything the boat should be limited to 8-10 knots when snorting, but I don't think that is moddable.
Hi. So my parameters are simmilar. You very interesting me with this snorchel visibility. Well. I'm not the GWX user. I know some things about that mod, but thanks to You I was find out about a "invisible elephant which sit on my snorchel":rotfl:. Thanks:D.

I describe my settings here for share, but if someone like his own settings I understand it of course. This is normal. I also don't changing this things, which I like. Is difficult to describe my settings better. If someone is interesting in my settings and knows how to use S3D, then can always simply use my setting for a while and test.

Yes. I also like to have slower XXI at the snorchel depth, but this is not possible without a ingeration in the main game files.:shifty: At least I think so.

[AH_Thor]

I am going to test you settings :D....thanks for sharing your knowledge :up:

;)

[evan82]

I am going to test you settings :D....thanks for sharing your knowledge :up:

;) Hi AH_Thor! Thank's. Tell me after your test what do you think about it, and how it works [I don't know which mod You using] Also tell me what is wrong if you find something:yep:.

[evan82]

For all thouse persons which are interesting in this settings. This topic is old in my opinion, and setting are not so good. Now I use better setings based on this what I found on uboat.net. Settings from first Post are old and not so good!!!:yep:

[Magic1111]

Settings from first Post are old and not so good!!!:yep:

...please post the new settings...:03:

Best regards,
Magic

[Magic1111]

Many thanks, evan82 ! :yeah:

Best regards,
Magic:salute:

[evan82]

Many thanks, evan82 ! :yeah:

Best regards,
Magic:salute:
I also thank You Magic1111 for gived me some motivation.:up:
Good hunting!

[Magic1111]

Sorry for my mistake.

No Problem mate ! :up: Thank you for update ! :yeah:

Best regards,
Magic:salute:

[evan82]

Final settings for XXI in the first post.:arrgh!:

[Magic1111]

Final settings for XXI in the first post.:arrgh!:

Thank you very much mate !!! :up:

Best regards,
Magic:salute:

[evan82]

Old thread, but updated again. Everything is in the first post!:ping:
If someone alredy fixed recharging times for XXI by editing hard code files PM me please!

[Marcello]

I am not so sure. As far I have read with a boat not fitted with superchargers stage 1 and 2 took 6.2 hours at about 5 knots while using the snorkel. The third stage, from 90% to full, an other 2.4 hours (though whether snorting at 5 knots as previously or with all power available I am not sure, it was done every now and then mostly to preserve battery life anyway). So in total 8.6 hours to go from 10% charge to 100%.

[mikey117us]

Excerpts from captured type XXI trials:
The vessels in U.S. custody as well as numerous other type XXI submarines had their supercharger removed. The precise reason for its removal is not known. Whatever it was that caused the Germans to take this drastic step brought about a serious decrease in diesel power available and a resultant serious unbalance in the machinery plant. A possible reason lies in the damage that would be caused to the exhaust gas turbine should it receive a slug of water during snorkel operation. However, the exhaust gas driven blower on the 9 cylinder MAN engine on type IX submarine was not removed when the snorkel was installed, so that this reason for its removal is not conclusive.
The attempt by the Germans to provide a high powered, small size diesel engine for the proposed operation of the XXI submarines that could use interchangeable parts from the 9 cylinder MAN engine proved a failure and created a serious weakness in the vessel as finally delivered. The forced removal of the exhaust gas driven supercharger from the engine decreased the useful output of the engine by nearly half the original designed rating. Furthermore, the engine, on test, both with and without the supercharger, was limited in output below designed ratings by excessively high exhaust temperatures which exceed those permitted in US submarine practice by 350° F., have created trouble in all exhaust valves as they are not suitably designed to take this temperature.
The basic design (on which German trial data is available) incorporated a large battery of 372 cells, two 2470 HP (2500 PS) main motors, two 111 HP creeping motors and two supercharged 1970 HP (2000 PS) diesel engines. The main motor and diesel engine on each side are separately geared to the main shaft while the creeping motor is connected to it by a V-belt drive. Adequate clutches are provided to give maximum flexibility in the use of this arrangement.
On trial runs the propulsion motors developed their rated power. When using the main motors, submerged speed in excess of 16 knots were obtained. It should be possible to maintain this speed during a one hour battery discharge. Surface and submerged speeds up to 6 knots have been obtained when running on the creeping motors. The cruising range based on one battery discharge is 365 miles at 5 knots or 110 miles at 10 knots.
The diesel engines, on the contrary, have proved a major weakness in the vessel's design. On actual trials the output was limited to 1700 HP (15 knots) by excessive exhaust gas temperatures. Furthermore, the exhaust driven supercharger when used during snorkelling operations proved hazardous and was subsequently removed. The diesel without supercharger is able to operate only with snorkel cams in, with a resultant limiting output of 850 HP (12 knots) before excessive exhaust temperatures are reached. As it is necessary to furnish approximately 1200 HP for 4 hours to the generators for charging each of the two batteries at the normal charging rate, the time required for a full charge is excessive. This necessarily places a major handicap on the vessel's operation and decreases the value of the higher submerged speeds.

[evan82]

Hi guys and thanks for both replies :know:. With my settings all another possible batterry recharging time changes are still simple.:yep: All we need to do is increase values in this lines via s3d:
3.
unit_Submarine-->Ranges-->Submerged:
miles=240,0
knots=4,0

...for bigger underwater XXI range by increase miles line, or knots or both lines.:salute:
This one thing can be safe change in base between patrols.:yep:
************************************************** **
If someone have more info about XXI, or know something more about recharging battery times of this Boat, please write.

[Marcello]

The design study for the type XXI can be found here (http://www.uboatarchive.net/DesignStudiesTypeXXI.htm) . Focus is on design rather than performance figures but it does provide some elements.
Charging was done in stages (as in the others u-boats)
1) 10-60%
2) 60-90%
3) 90-100%
As far as it can be found online each stage would probably take about two hours and half under ideal conditions (including a stationary boat) and a bit more than three hours in actual practice with the snorkel.I have not read primary sources about this specific issue however, just quotes.Note that charging time would be non linear (not a Type XXI exclusive feature of course, just basic battery mechanics), I do not know if the game can simulate this.
In addition it seems that the usual charge mode would have been using both diesels to drive the main motors as generators and using the creep motors for propulsion. In the game you are stuck with the one engine used for propulsion and the other for generation mode, which was the usual (though not the only possible) method for earlier u-boats.

[evan82]

Thanks. I didn't read everything from that page erlier.
After few in game tests on: miles=280,0 knots=4,0 [everything else is set up like in first post]
12 -14 h at 6kt, [underwater range near 190km] Then 6,5h for recharging.
At 4 kt - 418km [2-3 days underwater].
About 32km underwater range at 12kt, at 3kt 520km+:ping:
So for 7h+ recharging time, miles could be set for 300,0 - 330,0. at 4 knots.:shucks:
One thing is also importatnt here. Batteries power [Cfg basic file].
I use stock settings.

Edit: Sorry. I used batteries AFA27MAK800 set for 1.0.
So for model AFA44MAL740 with stock Energy 1.25, range and recharge time on my settings will be longer.

[Marcello]

About 32km underwater range at 12kt, at 3kt 520km+:ping:Well..

The wartime report intercepted by the allies gives:
3 kn/450 miles
6 kn/265 miles
8 kn/165 miles
11 kn/110 miles
14 kn/45 miles
max (around 16 knots)/24 miles

Polmar gives:
5 and half knots (on creep motors)/320 miles
6 kn/280 miles
12 kn/60 miles
16 kn/25 miles

The US report gives:
5 knots/365 miles
10 knots/110 miles

Presumably miles are all standard nautical miles or thereabouts. The differences can be attributed to either mistakes/guesses or actual performances (or a combination of both): early boats were slower but had faster dive times, with a a different flood holes arrangement underwater performance was improved at the expense of longer diving time. U-3008 also got a streamlined tower casing without guns postwar.
My two cents worth would be trying to figure out something that sort of matches endurance at 5 knots (cruising) and 10 knots or thereabouts (intercept), is not horribly off mark in terms of recharge time and let the chips fall where they may elsewhere (within reason, if endurance at max underwater speed turns out to be just 3 minutes then evading depth charges is going to be tricky...) if it cannot be avoided as I suspect that duplicating performances across the board is going to be impossible.

[evan82]

Well..

The wartime report intercepted by the allies gives:
3 kn/450 miles
6 kn/265 miles
8 kn/165 miles
11 kn/110 miles
14 kn/45 miles
max (around 16 knots)/24 miles

Polmar gives:
5 and half knots (on creep motors)/320 miles
6 kn/280 miles
12 kn/60 miles
16 kn/25 miles

The US report gives:
5 knots/365 miles
10 knots/110 miles


Yes I know my dream, but is not possible in sh3. Like I said befeore in first post;
These new settings means the best balance between range, battery recharging time, and noise emisive by XXI - at least for me. XXI ability to staying as silent as possible should be very important. However, I newer tested it with GWX. Now XXI is about 16,7% easier to detect
than vanila XXI. But we can't skip this, if we need to recharge batteries on time.

[mikey117us]

Translation of German Tests some of the most important data as these were from different boats tested in the baltic to give wartime procedure for the type xxi.
The snorkel system had a relatively large water resistance due to its two circular tubes. Since in the range of 6.5 to 8.5 kn appeared strong vibrations, only speed steps from 0 to 5.5 were for their operation kn (battery charging) and 9 to 10.5 knots ( cruising ) allowed.
The tall boot made ​​a very large valve overlap of 150 ° necessary, which resulted in an increased back pressure sensitivity. This could go as far back in snorkel trip the supercharging that motor performance remained strong standing plummeted and the motor in unfavorable cases. On the control shaft therefore a second valve cam kit (snorkel setting) was attached, the reduced valve overlap. Thus, the diesel power went to 2 × 1400 hp = 2 × 1030 kW at 470 min -1 and the charger was only 10,000 min -1 U 3503 scored at snorkel trip with two diesel engines, 395 min -1 engine rpm and 7500 rpm. - 1 charger speed, a speed of 10.4 knots.
The decrease in the diesel performance snorkel trip was a significant problem, because this took the battery charge, 6.2 hours from 10 to 90% state of charge relatively long.
The board practice showed that the previous snorkelling performance could be achieved without charging. Since the above-water properties were subordinated, was abandoned in later versions on the installation of the turbocharger. The maximum power diesel with snorkel was then 2 x 1200 hp = 2 × 883 kW at 10.9 knots. In practice, however 6 knots could hardly be exceeded because of the periscope and snorkelling oscillations.
THIS NEXT SECTION IS VERY IMPORTANT!
It has been calculated that every 24 hours 3 hours battery charge with snorkel were sufficient at 5 knots submerged cruising with slow (CREEP MOTORS )motors to maintain the state of charge between 60 and 90%. Because the diesel power with battery charging only 2 × 1050 hp = 2 × amounted to 772 kW at snorkel trip, recharging a discharged down to 10% battery (drive with creep speed engines) until completion of the second loading stage lasted about 6 kn (90% charge) 6.2 hours. In trials at the pier (shore power was possible), however, load times were reached 2.5 hours for the first two stages of charging. For the third loading stage (up 100%), which was necessary to maintain the capacity at certain time intervals, it was expected further 2.4 hours charging time, what a full charge time of 8.6 hours gives in snorkel trip. ( the batteries were tied in series and this included sub-batteries for silent running therefore three stages for charging )
Recharging the port or starboard part batteries could only row effected. Separate recharging of individual sub-batteries was not possible. Therefore, the power requirement of the auxiliary machines had to be distributed to the sub-batteries tuned in operation. Normal recharging started in the first charging stage with a current strength of 2040 A according to a charging voltage of 2 × 446 V = 2.40 volts per cell. In the second loading stage, the current intensity decreased at a constant voltage at 510 A. In the third loading stage was loaded with constant current up to 510 A at a voltage of 2.7 volts per cell.
This data is in the german language and translated via google translator.
another interesting link: http://www.u552.de/german/docs/TypXXI/TypXXI.htm

[Marcello]

Yes I know my dream, but is not possible in sh3. Like I said befeore in first post;
These new settings means the best balance between range, battery recharging time, and noise emisive by XXI - at least for me. XXI ability to staying as silent as possible should be very important. However, I newer tested it with GWX. Now XXI is about 16,7% easier to detect
than vanila XXI. But we can't skip this, if we need to recharge batteries on time.

I would have guessed so. What's the mileage at 10 knots?

[evan82]

I would have guessed so. What's the mileage at 10 knots?

Hi again Marcello. The problem with XXI in sh3 is known from a long time. I tested XXI on many diffrent settings through 5 years. In Vanila sh3 XXI diesel power is set for 4500, electric engine for 5000. Vanila underwater range for XXI = 285 Nm at 6 kt. So 285 x one Nm [1.852km]= 527km underwater range for XXI at 6 kt in vanila sh3. But in vanila, recharging batteries from 10% - 100% take abot 12h, maybe more, never reach end. On stock settings when the diesel is less strong than electric engine 4500/5000 electric, even with fix for battery recharged full from 0 - 100% of power, batteries never recharged to the end. The diesel should be set for minimum 5000 or other value, but at least for the same value [not less value than electric engine] like electric engine for recharging batteries to the end. But 5000 diesel power, and 5000, electric power gives still to long baterry recharging time for XXI in sh3. Still about 12h+, maybe more, if underwater range = 285 at 6 kt. How it can be "fixed" without changing a hard code. We can increase the diesel power for faster recharging time, or we can reduce underwater range, or we can do this both things for best results. This last option is the best in my opinion. Why? Because like I said before, if the diesel engine in XXI is set up for very stronger power value than the electric engine, XXI becomes more easy to detect by enemy escorts especially with ASDIC, not only hydrophones! So ability for detect by the escorts with ASDIC depending on the XXI disel power, or electric engine power? No! Escorts ability for detect XXI depend in much degree on the difference between power of the diesel and electric engine. So 5250 disel power, and 5000 electric engine power is the best option. Someone can use 4000/3750, or less, but with negative acceleration of the Boat [from 0 - full] kt. Further. 5250/5000 engines power settings with vanila sh3 underwater range [285nm/6kt] gives still very long recharging time. If someone like this, shure why not. This thred is not an order to use my setting but is more helpfull thred in it's intention. However ability to recharge batteries from 10% - 100% of the power in 6 - max 8 hours is good option.
One night and again You can travel underwater 3x+ longer than on VIIC, for example at 4 kt 2 - 3,8 days, if underwater range is set up for 280Nm or 310 /4kt. At 6kt all day 14 -18h, and recharge at night. In the end of the war airplanes can be dangerous even at night.
I thinkered about it. But on the other hand is better to racharge batteries fast, than slow [12h+]. Because sometimes we have very short time to recharging batteries at the end of the war. In situation when You have 25% power in your batteries, and You desperate need more, what you can do, if you have wait for recharge to long? You can say "I always start recharging when batteries have 50% power. Sure. This is option. But recharge last 25% [from 75% - 100%] power takes most of all time. Sometimes 16 - 17kt speed is also needed. And remember. At 5250 diesel power with 5000 electric power engine XXI is still very more silent [XXI is harder to detect] than on 7000+/5000 D/E engine power for example [2500 power difference - Ping!!!]. This is also important. However if someone is not satisfied, can combine on his own way. I write this thred for help, not to force anybody to use my settings.

At 10 kt about 54 -60km, maybe more. It depands also on batteries energy. :ping:

EDIT: Also thanks for interesting post mickey177us:know:

[mikey117us]

more german data: Data reflects testing in the Baltic with a lesser degree of saline in the sea water boats are trimmed with more air than seawater as ballast.
Geschwindigkeit:
Aufgetaucht (surfaced)

Auf AK=15,37 kn (http://de.wikipedia.org/wiki/Knoten_(Einheit)) (28,5 km/h) (Diesel)Auf AK=17,94 kn (33,2 km/h) (E-Motor) ( not possible in sh3 to run Electric motors while surfaced )Auf AK+1=18,08 kn (33,5 km/h) (E-Motor + Diesel)Getaucht (dive)

16,5 kn (30,6 km/h) (E-Motor)6,1 kn (11,3 km/h) (Schleichfahrt-E-Motor)10,42 kn (19,3 km/h) (bei Schnorchelfahrt) (cruise not charging battery) (max. erreichte Geschwindigkeiten auf U 3503, U 3506 bzw. U 3507)
Reichweite: (range)
Aufgetaucht (surface)

15.500 sm (http://de.wikipedia.org/wiki/Seemeile) (28.700 km) bei 10 kn (19 km/h) nach Schleppversuchen errechnet, nach Messung auf U 3507: 14.100 sm bei 10 kn, 15.700 sm bei 9 kn.Getaucht(dive)

340 sm (630 km) bei 5 kn (9,3 km/h) bzw. 487 sm bei 3 kn mit Schleichmotoren. 120 sm bei 8 kn mit E-Maschinen.15.100 sm bei 10 kn bei Schnorchelfahrt.(cruise not charging)
The German Data is to me very important as it was the Boats they had during the war in which they went to See in. They had a Crucial Job inspite of Design Flaws (Removal of Maganese from the Hull Design because of Shortages which led to a flaw in the Weld Tempuratures which resulted in Welds Cracking ), Production Changes( MAN SuperChargers in,then out ), and Setbacks (MAN Factory Bombed Torpedo Shortage Due to Bombing of Storage Facility ) Etc. Wether or not they could have done this job is pure speculative.
In Theory the Type XXI in Conjunction with the Type XXIII were to prolong the War by Six Months. First the Type XXIII ( which I use with my own new skin, tweaks like no supercharger, reduced surface speed, rearranged compartments to reflect one diesel one electric motor one creep motor. fore and aft batteries in the fore room, two extra reserve torpedos ONLY for withdrawing and balancing the torpedos at 30m depth and simulating charging of the torpedo batteries not for carrying more torpedos, 27 second time to raise the air operated snorkel as per german data and many more realism tweaks but this boat is so unfinished compared to the other playable boats in the game ) sent to the Coastal Convoy Routes abandoned since 1940 and the withdrawal of the Type II boats. This is to draw Escorts from the West Coast of England and the North Atlantic opening a Hole for the Type XXIs to Enter and Attack Allied Shipping to choke the Supplies of the Proposed Invasion Front ( Plans made in the Summer of 1943 ).
By the time the first type XXI was Laid Down the Invasion had begun. This Months after the Withdrawal of the U-Boats From the Atlantic (at a Critical time) meant the Allies had by Winning the Battle of The Atlantic, Had Won the War.
The U-Boat Arm by May of 1945 was the Only Arm with its Orginization Still Intact. Even if 20 Type XXIs went on Patrol as early as January 1945 there could have been an increase in tonnage losses for the Allies but the War still could not have been delayed by six months the stated goal for the Electo-Boot Programme. The British and Americans would not have Sued for Peace and joined Germany to stop the advancing Soviets. This Scenario was to come to pass and Submariners Played their part again in a very Cold War.

[Anvar1061]

evan82,make your fixed battery recharge in XXI ready to installation through JSGME! http://www.subsim.com/radioroom/images/smilies/Kaleun_Confused.gif

[mikey117us]

I don't think he uses JSGME someone with his permission would need to do that. and if so please include his skin with water streams for an all-in-one evan81 type XXI.

[evan82]

evan82,make your fixed battery recharge in XXI ready to installation

through JSGME!
I never used JSGME. Everything is in the first post. Besides, only description how to do it
can be useful especially when someone is not satisfied with my settings. Then can change them
by himself. The description in the first post is only a simple help how to do it, nothing more.
There is so many mods with so many other settings. So many conflicts are possible. That's why I always work directly on files, and I don't had CTD for a long time.

I don't think he uses JSGME someone with his permission would need to do that. and if so please include his skin with water streams for an all-in-one evan81 type XXI.

Right. But Skin for XXI with water streams and with 37mm AA guns [1 mod - all in one is ready, but not through JSGME]
Edit; I don't upload it yet. New streams are more fps friendly now.

[Marcello]

evan, out of curiosity, have you ever considered modding the MK 303 guns for the Type XXI (even retaining the 20mm graphics if it is convenient)?

[evan82]

I think it does not lie in the realm of my interests now. The profit is to small.:shucks:.

[Anvar1061]

evan82, try JSGME and you will be surprised that it does! You can make Mod and enclose the
instruction in Readme files!

[mikey117us]

After these modifications I may have made an error in the .sim file as my XXI boat spawned at an elevation of 500 meters above the sea! and slowly spun downward into Bergen Harbor and was destroyed! All is not lost as I had in the past repaired the Type XXIII boats recharge times based on the KTB entries of OL. z. S. Karl Jobst of U-2326. The boat would Ventilate each day at 15:30-15:40 and Recharge each day at between 23:45-24:00 for about 3-3.5 hours pausing each hour for 5-10 min. for all-around-listening. Trial and error brought my recharge time to these actual KTB entries by adding the diesels 572hp+the E-Motors 568hp+ the Creep Motors 46hp= 1186hp on the diesel and achievable at a speed of 4kn-8kn depending on sea state in 3hrs. after a stand of speed 4kn distance 140km.
This also applies to the XXI and works as well as Evan's method and either way brings recharge times where they should be. However the real change came when I added a third set of batteries as per prototype. The Plans show AKKUM Raum 1 ( the Aux Battery which was for the creep motors and is the Stage one recharge ) in the aft room and partial in the command room I added the Battery here. Akkum Raum 2 stage two recharge and 3 stage three in the recharge in the fore room. We have aft batteries and fore batteries in sh3 and adding the stage one aux. ( either adding another aft battery to the fore room or in the command room ) battery now reduces power consumption during a stand of 24hrs to the point where at 4kn your battery level is at 88-90% keeping your battery level in stage 3 charge levels and a 2.5 hour recharge time. I submit this to evan82 for Follow Up Testing if he so desires to facilitate realistic charge, range, and battery consumption. I tested a submerged stand at 8 knots with a beginning to end waypoint of 220km which should discharge all three batteries. About 40km before I reached my waypoint I was at 10% battery, speed fell off to 3kn and discharge in this stage 1 battery usage stopped ( sh3 does that )and the XXI acted like it was running on the creep motors. I then snorkeled for 7+hours and reached a full recharge at a speed between 5-8 knots seas were calm.
I am satisfied with these results but they do need further testing and knowledge of editing to the Basic.cfg file. to add the battery. I believe this will fix the Type XXI to a more realistic boat with realistic performance.

[evan82]

After these modifications I may have made an error in the .sim file as my XXI boat spawned... and slowly spun downward into Bergen Harbor and was destroyed!
Because You need to start a new career if You want to change gravity center of the boat and diesel power. This was normal error i think. It's good to know, that You solved problem by create your own settings soup for your self taste.