Interceptor Sub

[Silverwolf]

Originally Posted by Travis Reed

Silverwolf, I've modified the beta slightly to reduce noise. I was getting detected by DDs miles away at low speed (1/3). It's much quieter now (I was having the same issue with the Shark, actually).

Also, I'm curious as to whether the Interceptor has any armor (like the Shark does). I'd like to have some so I can get some use from the guns, but not necessarily on the level of the BlackWolf or Titan.

Yeah I did notice the noise problem and have fixed that. I'm using the hydrogen peroxide engine that ETR3(SS) used in his 688i. I know the beta's engine is 1500rpm I believe so it was very noisy. In the final version the electric engines will have 200rpm and the peroxide engine will have 500. That should help with the noise problem.

The interceptor has a 65cm hull so she does have some armor to take on a couple of destroyers if need be. The blackwolf has an 80cm hull just for comparison.

Originally Posted by Gorshkov

What freak is this???

I believe ETR3(SS) sums it up pretty well.

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Ok so here's some updates. The command room is nearly done I'm just putting in a few small things to take up some of the bare wall space. Then all I need to do is finish some of the textures and I can bring it in game. She will have click-able buttons for most of the commands the game has.





I have also looked into adding the venting of air from the sub when submerging. I'm still working on it but this is what I have so far.
http://i175.photobucket.com/albums/w...142419_346.jpg

This vid here shows kind of what I'm going for. You need to skip to about 48 sec in. I know i'll never get it to look exactly like the vid but I want to get as close as I can.

[Marka Ragnos]

Silverwolf this is awesome

Looking forward to take it for a test dive

[Travis Reed]

My solution didn't include the Walther engine. I just reduced the RPM (submerged) down to 0.01 (the Caterpillar drive was supposed to have "no moving parts"). I want to try absolute 0, but no sure how SH4 will handle it. For surfaced propulsion, I reduced it to the setting for the Balao (which seems to be what was used as the basis for the config).

[Travis Reed]

I wish there was a way to reduce the noise the screws make. 0 max RPM while submerged does work, but the screws still make some noise that I can hear (although the AI doesn't seem to be able to hear it very well).

I'm curious as to why you left 2 screws configured, when only one is modeled. Perhaps because SH4 doesn't like single screwed subs?

As for using the Walther Engine for noise reduction...are we certain that works? I would think that since they pretty much allow the main diesels to run while submerged it would be extremely noisy... Perhaps SH4 doesn't implement it...

To truly solve the noise problem and create a true silent drive I'd like to figure out how to adjust the volume (as perceived by both the player and the AI) of the engine and screws independently of adjusting the engine RPM...but that's presently beyond my knowledge...assuming it's even possible...

EDIT: While running the beta through testing, I did notice that the gun crew is injured way too easily. I would imagine that the deck gun crew and the gunners for the AA triple guns would be inside and not on the deck...thus not exposed to incoming fire. The deck watch and those manning the .50 cal AA would be exposed (but I doubt you could easily separate the two AA gun crews, given the lack of space on the crew management screen).

Also, I noticed that the draft could use adjustment. Most of the modern shaped subs don't have the waterline halfway up the sides, usually more than halfway (I should not be able to see the tip of the bow at the waterline). Perhaps change the draft to 30-32 feet. Would also help put the screw all the way into the water and hide the shroud..

[TabbyHunter]

Dude, you love to make interesting subs, dont you? Hope you finish it soon!

[ETR3(SS)]

The amount of noise you put into the water is determined by the amount of shaft rpms. Anything less than 50rpm is a silent running speed. I haven't tried editing sound files so that may or may not help as well.

[Travis Reed]

Originally Posted by ETR3(SS)

The amount of noise you put into the water is determined by the amount of shaft rpms. Anything less than 50rpm is a silent running speed. I haven't tried editing sound files so that may or may not help as well.

I was actually thinking of the config for the sounds (the .dsd files), not the sound files themselves. It seems, though, that the .dsd files do not have anything to do with volume, just which sound file is played by what event.

Something else to consider is that the Hydrogen Peroxide engine is more difficult to refuel. You have to actually end your patrol back at your assigned base to get more fuel for it (in my experience, anyway). This means that you can't just stop at any friendly base to get it topped off (as with diesel fuel). In my opinion, it should not be used as a primary propulsion system. This is, however, Silverwolf's boat...so he may do as he pleases.

[ETR3(SS)]

Originally Posted by Travis Reed

I was actually thinking of the config for the sounds (the .dsd files), not the sound files themselves. It seems, though, that the .dsd files do not have anything to do with volume, just which sound file is played by what event.

Something else to consider is that the Hydrogen Peroxide engine is more difficult to refuel. You have to actually end your patrol back at your assigned base to get more fuel for it (in my experience, anyway). This means that you can't just stop at any friendly base to get it topped off (as with diesel fuel). In my opinion, it should not be used as a primary propulsion system. This is, however, Silverwolf's boat...so he may do as he pleases.

Well the range you get with the Walther drive can be adjusted just like the diesels and electrics. One advantage to making the Walther drive the primary drive is that it can never fail. However that being said, I've started looking at using it as the backup means of propulsion now. Couple reasons for that: 1) By switching it to secondary that removes user error, comments like "this mod sucks! I can only go X knots" would go away (well hopefully). 2) It can better emulate propulsion casualties such as: a primary coolant leak, steam line rupture, burnt out rotor, or a cracked cylinder head. Also with the Walther as primary it's harder to get the speeds you want with the diesels or electrics if you want a lower speed for them.

[PL_Andrev]

Originally Posted by Silverwolf

...
Amazing, just amazing...