fire up a torpedo without the TDC

[abchirk]

Hi
is it possible to fire up torpedos without using the TDC?
Just givng an angle and thats it?
I tried it with setting speed from TDC to 0 tried it with different ranges...
but it seems that he is doing what he wants. :(

no way to deactivate the TDC??

Its just annoying! :(

[Fincuan]

1) Set speed to 0
2) Point scope to desired bearing
3) Send range and bearing
4) Fire

[abchirk]

hm but I have to set the range...

I cannot guess the range when there are only some seconds. :)
Isn't there another way without guessing range?

[Fincuan]

Guess, that's the key. Without range there's no solution.

[abchirk]

hm damn... :(

It was possible in SH3.... :(
that doesn't make sense in my eyes... that you cannot fire up a torpedo just with an angle... :(

[Rockin Robbins]

No, that doesn't make sense. And that makes sense because it is possible. I grab the plastic triangle in the range/bearing setting dial http://www.subsim.com/radioroom/%5BIMG%5Dhttp://i196.photobucket.com/albums/aa293/RockinRobbins13/Silent%20Hunter%204/Manual%20TDC%20Range/SH4Img14-11-2007_75648_836-1.jpg%5B/IMG%5Dand pull it down as far as I can. http://i196.photobucket.com/albums/aa293/RockinRobbins13/Silent%20Hunter%204/Manual%20TDC%20Range/SH4Img14-11-2007_75648_836-1.jpgThat sets it for about 1450 yards. Then set speed zero. Point the periscope, push the send range/bearing button and the torpedo will go roughly up that bearing.

I say roughly because there is some parallax error between the periscope and the torpedo tubes, plus the torpedo reach. The smaller the gyro angle, the more precise your bearing will be. This is true of U-Boats and Fleet Boats.

Check out the Sub Skipper's Bag of Tricks thread for further ideas and tutorials.

Welcome to the sunny side of sub simming: the Pacific!

[Fincuan]

It was possible in SH3.... :(
that doesn't make sense in my eyes... that you cannot fire up a torpedo just with an angle... :(

No it wasn't, even then you'd have to have something as range. The u-boat TDC has some default range that it'll use if the player doesn't input anything. So does the fleet boat one, but since the US TDC is not tied to the periscope you'll have to manually send a bearing, which in SH4 also sends the range. Anytime the gyro angle would be something else than zero, like 0.001, there MUST BE a range or there can't be a solution.

[Freiwillige]

In a U-boat the TDC was connected directly to the periscope so what ever angle the periscope was looking at the gyro angle was automatically sent to the torpedo. U.S. boats are not connected in such a way, Its all manual imput from the TDC.

[Rockin Robbins]

Nisgeis assures me that the real American TDC would let you link the two to automatically update AoB, but that our game does not allow it. Most curious choice there! I'd love to have that direct hook-up in a convoy situation, although tale shows in his video tutorials that as usual there are workarounds that work just fine.

That difference in the way the game TDCs work is why we came up with the Dick O'Kane Technique. We were trying to adapt U-Boat Fast-90 shooting to the fleet boat. When I came up with a way to make it work I wanted to call it Fast-90 until a couple of vets from SH3 hit me about the head with cudgels and finally made me believe that Fast-90 used a unique aspect of the U-Boat (in the game) TDC that directly linked periscope and TDC. Without that link I shouldn't call it Fast-90 or we'd just confuse everybody on the American side of the war (not difficult to do anyway).

What's really interesting is that you can do a Dick O'Kane in a U-Boat but you can't do Fast-90 in a submarine. But meeting a couple of U-Boat captains months before I ever drove one of those things with foreign words all over the periscope, stadimeter and TDC ;), was the beginning of my whole collection of constant bearing, longitudinal spread attack techniques. Oh, they DID think I was dumb. But they couldn't conceptualize the American TDC at all, while I understood just enough about the German TDC to make the technique work.

http://i196.photobucket.com/albums/aa293/RockinRobbins13/Silent%20Hunter%204/DickOKanetargeting.png

[Urge]

RR wrote...
I grab the plastic triangle in the range/bearing setting dial and pull it down as far as I can. That sets it for about 1450 yards.


Would it go straighter if you were using the "Clickable target distance dial" mod

http://www.subsim.com/radioroom/showthread.php?t=111371

and set the range to say 8000?

Urge