British torpedoes were excellent and the Royal Navy experienced none of the problems of malfunction which so plagued both the German and American navies.

Torpedo tubes were either internal, reloaded from within the pressure hull and located forward and/or aft; or external, located in the casings, either on the sides or forward and/or aft, and which would not be reloaded while in a patrol zone.

Several variations of torpedo tube combinations existed, even between boats of the same class. The standard torpedo was the 21in (533mm) MkVIII steam torpedo, 20ft (6.7m) long, with a warhead of approximately 661lb (300kg). They were capable of a speed of 30-35 knots on an average run of 8,000-10,000 yards.

If you had got the enemy course and speed right--you had your attack team to help you in computing it from your estimations--you knew what angle to aim ahead; that angle could then be set on the periscope. There was a bearing ring where the periscope passed through the pressure hull and you could read on it the bearing from dead ahead, on which the periscope was pointing. The actual sight was a graticule, or line down the centre of the periscope lens.


In WW2 the only fire control settings to be applied to a torpedo in the tube were gyro angle and possibly (but not in all boats) running depth. These settings were applied mechanically by hand from information passed over the intercom from the control room. Speed (high/low) was pre-set and a nominal depth (depending on the season and area of operation) was put on before loading.
During the attack estimated taget speed, course and range were fed into a mechanical angle solver ("fruit machine") which was also provided with the submarine's gyro heading. One of the solutions provided by this calculator was the Torpedo Track Angle, the gyro angle to be applied to the torpedoes. This angle was relative to the direction the bow would be facing when the fish was fired. Torpedo spread was achieved by maintaining a steady course (of the submarine) and varying the gyro angle and firing interval (time between firing) for each fish. The advantage of this was that the bow didn't necessarily have to be pointed towards the target.

The largest salvo in history was fired by Lieutenant (later Vice Admiral Sir) Arthur 'Baldy' Hezlet who, as Commanding officer of HMS Trenchant during WWII, sank the Japanese battle-cruiser Ashigara which he hit with five torpedoes out a salvo of eight from a range of four thousand yards!

http://home.cogeco.ca/~gchalcraft/sm/attack.html

5 out of 8, at 4k yards. I'd say NICE WORK.

I need intel on how they set the giros on the british torpedoes if any ?

it seems they did , then I shouldn't set the turn angle on the .sim to 0

but maybe less than the US's 135 degrees ?

keltos

They could but didn't, because it was too troublesome. That's what you can gather from reading the account by Ben Bryant in the page I linked. NOt even for spreads, as they simply spaced the firing of the torpedoes.

@ keltos I have betterlooking and more accurate T-class model int he works since 2007 lol.
I can send it to you when its complete, I just dont know when that will be...

http://i286.photobucket.com/albums/l...6/tclass-1.jpg

http://i286.photobucket.com/albums/l...96/tclass3.jpg

http://i286.photobucket.com/albums/l...96/tclass2.jpg

Fantastic looking one JU :o

Would be a blast to see it in SH4 :rock:

wow 8888 !!!!!! :yeah:

send it over pleaaaase !!!!!

keltos

Cool, gimme a few weeks to get it up to scratch and ill PM you a link to the 3ds & DDs files. i been meaning to finnished it off for ages and its about 75% there.... :)
Though you may want to add the finer details to the bridge your self.... but I really need to skin the conning tower and add the props, stern dive planes and cabling.
No doubt SHIV has a controller for the US fleet boats so you can animate the retractable bow dive planes

Hell I Might try and get it in to SHV also - but probably just as an AI unit.
(By the way, im only allowed to say it better than the current model you use as i made that too. Lamo.....)

JU_88 's first Class T model :

http://img396.imageshack.us/img396/4...odver13tq8.jpg
credits on the first post of this mod and in the mod itself.


JU_88's second Class T model :

http://i286.photobucket.com/albums/l...6/tclass-1.jpg




[QUOTE=JU_88;1363257]Cool, gimme a few weeks to get it up to scratch and ill PM you a link to the 3ds & DDs files. i been meaning to finnished it off for ages and its about 75% there.... :)

yatta !!! thanks !

Though you may want to add the finer details to the bridge your self....

I added some on your first mesh but this one looks, well, perfect !

but I really need to skin the conning tower and add the props, stern dive planes and cabling.
ok

No doubt SHIV has a controller for the US fleet boats so you can animate the retractable bow dive planes

I have already done it for our Jyunsen B which also had retractable planes so I know how to do that :D

this one is gonna be so much better ! the first mesh's tub was too deep for SHIV's dummies

You also need to separate the turret from the tower mesh so we can add it to a new dedicated DG, like we do for the IJN and Narwhal (well like Peabody built for me ;) )

Hell I Might try and get it in to SHV also - but probably just as an AI unit.

Ask Peabody as he already made an AI one for our IJN campaign .

(By the way, im only allowed to say it better than the current model you use as i made that too. Lamo.....)

I liked the first model a lot !:salute: but prefer the new one:yep:




some statistics :

v1.9.1_Hr_MS_Zwaardvisch_e.rar

downloaded 992 times :o

v1.6.1_HMS_Truant_-_T_cla1.rar

downloaded 661 times

v1.6.2_HMS_Truant_-_T_cla1.rar

downloaded 553 times

Grand total of : 2206 downloads !!

I guess people like the model you made ? ;)

keep up the good work and thanks for allowing me to use it in my mod.

regards

keltos

http://img532.imageshack.us/img532/121/tclassmodel1.jpg


JU_88

can you make two models ? one with the external tubes aft of the tower (8 +3) like this one and one with the forward external tubes (10 + 1) under the tower as seen in the picture here above.

I might then make the mod to have :

Class T model 1
Class T model 2

submarines available

regards

keltos

I thought about it but its a lot of work, the T class group one had the fore tubes amid ships, no stern tube and a totally different bow design to boot, they remodeled it for the group 2 and 3 boats because of poor performace caused by the bow design. Plus the group one also had different conning tower.
The first model I have made is a group 3 boat, it took months just to get it where it is, and it would take months to make a group one boat - the bow is very tricky to model.
I couuld make a group 3 with 2 fore tube amid ships but then it is a fictional sub, not a historical one.

http://img687.imageshack.us/img687/4364/tmod1.jpg

So the bow design was different on the group one boats (6+2+2 tubes, later one added to the stern)

I'm re-reading the Class T boat from which the above picture was taken.

A group 3 boat with 6+2 fore and 3 stern tubes will do then ;)

also from what I read they only had external torpedo tube doors on a few of them


do you have intel or a model for the DG ? tired of using a US one... I just read they used a maark XII gun.

commanders in the far east asked for more armor on it, eventually having a full turret covering the gun.

AA gun :

http://img413.imageshack.us/img413/7717/aabritish.jpg

Heavier AA gun :

http://img362.imageshack.us/img362/2729/59500773.jpg

keltos

v 1.65 T class submarine
 

http://www.mediafire.com/file/fyazny...nt_T_class.rar


keltos

British mark VIII and VIII and US mk14 torpex torpedo mod
 

British mark VIII and VIII and US mk14 torpex torpedo mod


http://img208.imageshack.us/img208/8697/64139938.jpg

There were some common ids on different nodes :doh:

fixed that,

fixed the zon file too (all the calculations are in an excell file with the mod, they are based on the stock hit points of the mk 14 used as baseline)

mk VIII TNT
min 96,1
max 144,2
AP 80,1
max turn angle = 35

mk VIII TorPex
min 225
max 337,5
Ap 187,5
max turn angle = 35

mk 14 US torpex
min 180
max 270
AP 150
max turn angle = 135

This mod gives you both british torpedoes mark VIII TNT and mark VIII** Torpex and the US mk14 II torpex torpedoes that was missing from the game, while retaining the original mk14 too, it'll be available mid-1942.


d/l :
http://www.mediafire.com/file/nyrimlwrzmr/British mark VIII and VIII US mk14 torpex.7z

test and report please

keltos

you mentionned somewhere that the planes swivel or something, is it like on the IJN subs ? :

http://img713.imageshack.us/img713/4134/jbbowplanej.gif

keltos

I always thought they folded away like the planes on the US boats.

Exactly this ^^

http://img188.imageshack.us/img188/8905/0077tx.jpg

Aerial shot at sea (probably sea trials) - Ship Name:Tantalus - Image Date:1943

http://www.dockmuseum.org.uk/archive...ect=&subtitle=


so like US ones .?

you also need to make the rudder, bow planes (2 separate) and stern planes separate entities, like the tower and the gun turret as they are animated separately. Sorry if I sound bossy :salute:

From what I read in the T CLass book, there were no outer doors (:D) although they briefly experimented with those based on an unsubstanciated account of a Portuguese sub captain saying they gained 1.5 knots in speed with the outer doors installed.


keltos

Truant Snort
 

Truant

http://img717.imageshack.us/img717/849/0073u.jpg


In Devonshire Dock with snort fitted (snort mast allowed air to be taken into submarine so it could use diesel engines even when submerged); shows details of snort induction and mast. She was the first British submarine to be fitted with this.

http://img153.imageshack.us/img153/8160/0075y.jpg
In Devonshire Dock with snort fitted; show details of snort induction and mast

http://www.dockmuseum.org.uk/archive...ect=&subtitle=

Yes all animated parts must be seperate objects (.obj) I am aware of this.
As for the tube doors.
Only the group 1 T class had external tube doors, they were removed for the redesigned bows of groups 2 and 3.

Thats another problem moddling all the types.
Groups 2 and 3 were very similar in appearance, group two has a 'dip' on the forward decking like group 1 and most had the 'enclosed cab' type conning tower.

But between group 1 and 3, only the main hull was the same in apperance, the bow, deck, conning tower and tube arrangement were all completely different.
Also I have seen no less than 4 different conning tower types on various T class boats.

Looking at google images, it seems that some people mistake the Post war A class for the T class http://home.cogeco.ca/~gchalcraft/sm...s/DOLPHIN4.jpg :)
(The center sub is an A class)