[REL]HMS subamrine Truant playable mod

[Markus]

Ha Ha, And I thought it was me doing something wrong.

New fixes/positions look great - can't wait.

Thanks

Wonder if there are any British uniform mods out there?

[cgjimeneza]

Glad to have you back buddy

have a book by a british CO, called "submarine commander" by Radm Ben Bryant... they did try a lot for zero angle shoots.. leading by rotating the scope and firing when the targets crossed the line

have you read it?

[keltos01]

Originally Posted by cgjimeneza

Glad to have you back buddy

have a book by a british CO, called "submarine commander" by Radm Ben Bryant... they did try a lot for zero angle shoots.. leading by rotating the scope and firing when the targets crossed the line

have you read it?

nope I have not , glad to hear from you too,

so many things to read and do, and our IJN stuff that gets put aside everytime, but sometimes small breathers are required in a large mod effort.

@all : here is the tower view fix, the rest of the stuff will come when it is ready, probably as a whole mod :

d/l tower fix (slip in Objects directory of mod) :
http://www.mediafire.com/file/ymzng4..._Triton_01.dat

keltos

[Hitman]

have a book by a british CO, called "submarine commander" by Radm Ben Bryant... they did try a lot for zero angle shoots.. leading by rotating the scope and firing when the targets crossed the line

have you read it?

The excerpt from that book that deals with how the target solution was built is the web I linked to

add that to the mod and try, I set the angle to 0 on both mark VIII and VIII**

That should work, IIRC sergbuto did it long ago and it was fine

Interestingly, the fruit machine worked like the current SH4 TDC (Which is in turn hugely inferior to the real US thing): You made an input of AOB, bearing and speed based on estimations, and then started the "simulation". If the next time you raised the scope the target was on the same bearing as the Fruit Machine indicated, then the solution was probably correct.

Here is the view through HMS Safari's periscope (Note the protrusion on the upper part for the bearing repeater, like in the german periscopes. The reticle is in mils and looks exactly like the first one you did for the Jap subs based on the old film, keltos):



BTW since the british submarines fought from bases in India and Malaysia as well as later from US bases in Australia, I guess that adding the T-class to the campaign as another playable submarine should be easy and realistic.

[Markus]

Sweet, and I'm off the next two days !
There goes most of the yard work down the tube

Thanks

Mark

[keltos01]

BTW since the british submarines fought from bases in India and Malaysia as well as later from US bases in Australia, I guess that adding the T-class to the campaign as another playable submarine should be easy and realistic

both the Truant and the Zwaardvisch already are in campaign. they were from the start, I started a thread a loooong time ago requesting a dedicated campaign :" Reverse Monsun, British operations in the Pacific" to no avail....

I can't write campaign layers, and I feel this sub should have a Dutch/British campaign.


keltos

[keltos01]

http://www.navalcadet.org/82/tomorro...history-w2.htm

nice periscope shot ! thanks hitman ! but I found a better one !!!!!








http://www.mikekemble.com/ww2/britsubtallyho.html



keltos

[keltos01]

the loadout in campaign



periscope view

Midway :



11 tubes is a bliss !!!!



ooops !!!!!



warning ! : do not use the TBT with this version, TBT still causes CTDs with 11 tubes...

all doors animations are fixed, so is the position of some of the crew.



download link V 1.64 T Class submarine :

http://www.mediafire.com/file/i4jwml...ant_T_class.7z

enjoy !

keltos

[keltos01]

Non turning british torpedoes add on :



forgot to turn the boat... the torps fire straight as in RL now

though this volley of torps got me a takao... then :

[IMG]file:///C:/DOKUME%7E1/Besitzer/LOKALE%7E1/Temp/moz-screenshot-2.png[/IMG]







d/l :

http://www.mediafire.com/file/y5mzzmt2kmz/British mark VIII and VIII.7z

add on top of Class T mod

keltos

[cgjimeneza]

do you recall in Silent Victory...

"we´ll let them go by, they are only heavy cruisers...."

and

"a submarine should have 24 torpedo tubes"

nice work Keltos

[keltos01]

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

[looney]

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

[keltos01]

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

[Hitman]

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.

[JU_88]

@ 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...