[REL] I-Boat Damage Mod (IBDM) v 1.0

[keltos01]

IBDM v 1.5

Well, now that empirically we found out what settings did work for our boats, so as to give some damage but also be able to repair it, and thus not be sunk or blinded after the first DC attack, I have decided to do like I did when I calculated the hitpower for my IJN torpedoes and for the US torpex torpedoes on the US side. As much as I like empirical data I like calculations better as they can be set to use many variables and can be checked by others, like the torpex torpedo power f.i.




The computing is relatively simple : I took the settings that worked, set the Jyunsen B (JB) as the base boat with a ratio value of 1.

I then calculated the ratio of every boat in respect to their test depth f.i. the KD3B has a test depth of 60 meters, thus 60 % of the JB 100 meters : ratio of 0.6.

I then multiply the armor and the hitpoints of the JB with that ratio, and get the values I have to use for each boat.

a bonus of 0.1 has been given to the newest boats, Type AM and Sen Toku.







There it goes ! the first part of the I-Boat Damage Mod is ready, it covers not only the Jyunsen B submarine but all others too.

No damage boxes were added, they were just moved and resized as all the essential equipment was already there.I set them according to the 3D model I had made earlier from the JB blueprints.
I also increased the number of spheres from 52 to 70 to fit the Jyunsen B and the others like a glove.

The towers have been done as well, there are collision spheres for the tub and aircraft hangar as well as on both scopes heads. The scopes, UZO (for lack of a better term) and the snorkel now have damage boxes too, the AA crew has its own as do the AA guns deckwatch and attack station.

Keltos

download :
IBDM v1.5

http://www.mediafire.com/file/zmidmt..._v1.5_12_11.7z

[Lt commander lare]

are you going to make this available for the us subs as well

lt cmdr lare

[NEON DEON]

Nice job!

[keltos01]

Originally Posted by Lt commander lare

are you going to make this available for the us subs as well

lt cmdr lare

No. That's RFB's domain, we honorable submariners fight for the other side

seriously : this is the finishing touch of the current Jyunsen B, Kaidai 3b and 4, Jyunsen 1M, Type AM submarine mod. The current though not released version is v 3.9. When the damage models are fixed for all above subs and integrated in the mod, it should be released as V 4.0 and come along with Peabody's IJN campaign "Climb Mount Niitaka".

there will be other improvements made to the mod later, when spheres and boxes are fixed for all above subs, I'll then experiment with new zones like the crew quarters and galley, for realism's sake.

then if it works it'll be just great ! this start with the Jyunsen B has opened a wide range of possibilities to me.

keltos

[keltos01]

thanks to Peabody and Neon Deon I foudn where the base armor was located and, to my suprise, I foudn out that the JB only had armor=10 when the Balao had 25 and the Porpoise (a quality like for the JB ?) has also 25 !

so I set the JB so :

armor=25
Hitpoints=750 because it is a larger boat
crashdepth=240


that should help some. for those 25 who are tryin the mod, open the zon file with s3d and open collisionable objects, you'll find the values seen here above, you can either change them or wait for the next mod version.

New mod 1.1 with armor corrected for all japanese subs (Kaichu not included) and Jyunsen B and Jyunsen 1M spheres and boxes done :

download :

http://files.filefront.com/IBDM+JB+0.../fileinfo.html


keltos

[NEON DEON]

The boat should be safe with no damage up to 70 % of the 240m crush depth which is 168m. There is a bit of fudge factor there. About 2 %.
Below that you pretty much are going to be toast if you stay down too long.

I studied the crush depths when I was doing my crush depth mod.

You could also set the max depth in sub cfg file to 168m and the D key will take her to that depth. There are some issues with this tho so where you have it now gives you a lot of play.

Take damage and your crush depth changes. Hidden damage is also a factor that might mislead you also. If you go past safe depth while diving you must surface to stop the bleeding.

[keltos01]

So for the Jyunsen B which had a test depth of 100 m (330 feet), its crushdepth should also be 240 m.

the Sen Toku had a test depth of 100 m (330 feet)

The Type AM had a test depth of 100 m (330 feet)

the Type C2 (I-47) had a test depth of 100 m (330 feet),

the Jyunsen B which had a test depth of 100 m (330 feet),

The Jyunsen 1M had a test depth of 80 m (260 feet)>, its crushdepth should be 192 m.

The Kaidai 3b had a test depth of 60 m (200 feet)>, its crushdepth should 144 m.

The Kaidai 4 had a test depth of 60 m (200 feet)

keltos

[keltos01]

Jyunsen B
I set new spheres for the Jyunsen B thus fitting more precisely the hull (114 spheres) and moved the boxes to size and places according to the
original blueprints.moved the torpedo tube boxes.Main ship armor was set to 25.crush depth was set to 240 m.
New spheres were added to the tower (22) and the boxes (7) resized and moved.spheres and boxes were removed from the scopes as they are in the sensori file.

[edit] it appears the periscopes get easily destroyed, beware ! this is the workhorse if the IJN

Jyunsen 1M
I set new spheres for the Jyunsen 1M thus fitting more precisely the hull (70 spheres) and moved the boxes to size and places according to the
original blueprints.set spheres on rudder, planes and screws.moved the torpedo tube boxes.Main ship armor was set to 25.crush depth was set to 192 m.
New spheres were added to the tower and the boxes resized and moved.

[edit] a very nice sub, kindo like a japanese Narwhal but with bigger guns !

Type AM
I set new spheres for the Jyunsen 1M thus fitting more precisely the hull (70 spheres) and moved the boxes to size and places according to the
original blueprints.set spheres on rudder, planes and screws. moved the torpedo tube boxes.Main ship armor was set to 25. crush depth was set to 240 m.
New spheres were added to the tower (25 total) and the boxes (2) resized and moved.

[edit] large and easily spotted...

Kaidai 3b
I set new spheres for the Jyunsen 1M thus fitting more precisely the hull (60 spheres) and moved the boxes to size and places.moved the torpedo tube boxes.
Added spheres to the rudder, back and fore planes.Main ship armor was set to 25.crush depth was set to 144 m.
New spheres were added to the tower (11 total) and the boxes (2) resized and moved.

[edit] my favorite

Kaidai 4
Main ship armor was set to 25. crush depth was set to 144 m.
The spheres (10 total) and the boxes (2) were resized and moved in the tower.

upload tonight.

keltos

[keltos01]

version 1.2 of I-Boat Damage Mod :

download :

http://files.filefront.com/IBDM+JB+v.../fileinfo.html

[keltos01]

My current WIP is the Type C2 submarine (I-47 class : LtCdr Orita)

It seems she was a really tough girl, she also survived the war which is pretty rare all things considered.

31 March 1945:
25 miles E of Tanegashima Island, S of Kyushu. About 0200, the I-47 sights two enemy destroyers. She crash-dives, but is chased for the next 12 hours. As the I-47 submerges, fragments rain down on her conning tower. Her No. 1 periscope is knocked out and develops a leak. She survives 21 depth charges.

http://www.pacificwrecks.com/ships/subs/I-47.html



version 1.2 of I-Boat Damage Mod :

download :

http://files.filefront.com/IBDM+JB+v.../fileinfo.html
__________________

[keltos01]

new version of the IBDM :

d/l :

http://files.filefront.com/IBDM+JB+v.../fileinfo.html

includes new Jyunsen C2.dat and zon

the Kaitens on deck have their separate zones

keltos

[Carotio]

version 1.3 available through SHMF too

[keltos01]

work will resume asap when the Narwhal is done

keltos

[keltos01]

back on track,

We had a few glitches when attacked by dc where the US subs have damage, we tend to have a breached hull ... and as a good sailor, I can't swim

so I looked up the upc and upcge to spot the difference, the first I noticed is the maintenance coef, lower on the Narwhal than on the KD3b

the damage zones are different : Observer used the US zones when making the U-Boat damage mod, is this the difference ?

keltos

[keltos01]

But to get the point, after your comment I decided to take a break and sail a fleet boat mission. I sailed out of Pearl Harbor to my assigned location. First this I did was sink two tankers in a rainstorm and then realized they were US and said "Woooops" wrong ones.

Anyway, next morning I got caught on the surface and bombed by two planes. Didn't hit the sub but close enough to do some damage. Here is the point. I got about 1/3 damage and flooding in one compartment, minor damage to diesels and minor damage to scopes, and a few other things. But the compartment did not continue to flood (the pumps kept up with it) and the damage got fixed fairly quickly. Since it was a bomb and not a DC I could still use TC so I am not sure exactly how long it took to fix, but it was reasonable.
Now that same amount of damage to the bulkhead with flooding to the 3b and it would have eventually sent me to the bottom. It would be so slow fixing it would completely flood and career over. One compartment flooded and I go to the bottom, and the flooding happens quickly. ANY flooding, even minor thin blue line and I can not get to periscope depth to try and fight.

So, what I was thinking was to try to look at the damage models of the US subs.

Not just placement of spheres and boxes, but numbers and settings for damage and repair time.

(if you know where they are) There must be some settings that are different and we may be able to find them. Remember this all started when we were both getting 100% destroyed on all engines with any DC, no matter what, never partial damage. Maybe we can find some info to help, since the fleet boats seem to work a lot better.

I appreciate all the work you put into the damage model but this may give some clues to make it work better. A minor damage to a bulkhead shouldn't sent a sub to the bottom. I mean something like .32 or sometimes less. Which is what is happening. Peabody

Damn the torpedoes full speed ahead !

any luck

keltos