Figure this..

[Captainchaos]

I managed to hit a ship at 90 deg ( 100% realism TMO 2.0 :know: )
It slowed to almost a halt, since i only hit with one torp as the others were dud, i spun around to shoot with my aft tubes...

I left the setup as it was since i figured it should be the same, however the shots went veering off someplace miles off the mark :stare:

I can`t figure why that happened or am i missing the plot regarding aft tube setup?

[WernherVonTrapp]

Did you open your tubes (Q-key) before firing?:hmmm:

[Armistead]

If you had a true 90, if you spun around without resetting correct angles and bearings that would pose big problems. I seldom use the 90 now, but if the ship was moving very slow after the first hit, what speed settings did you use for the bow shot vs the stern shot when you spun around. You do have to have correct speed for a 90 to work. I see all kinds of problems if you were doing a true 90 and just spun around and left everything like it was, everything would be off.

Did you have the PK on or off?

[Captainchaos]

Well, firstly i always open tubes early to prevent noise & PK is always off.

Stern shot was probably not exactly at 90 deg, but i set up as that because the gyro angle was showing 6 deg off 00.
The ships convoy was reported at 5 knts so i set to that.

So I fired at 00 & hit at 354 i think, basically i thought since i turned 180 deg i was pretty much in the same position so i figured i leave all the settings as they were and fire.. they veered off to the right almost as if they wanted to go to that 354 mark rather than 6 deg off 180.

should i need to re-input the same info or what?

Just when i think i understand it all goes pearshaped :88)

I`ve been playing the convoy tutorial over & over for the last few sessions trying to understand DD avoidment & general basics before i venture onto the missions.

Did i mess up or should it have been correct?

I understand it`s hard to nail a problem if you can`t see it first hand, but i try to keep everything as simple as possible as my maths sucks.

[Armistead]

I assume you mean the lead angle was 6 degrees from the 90 track. I think for speeds basically 15kts and slower about a 10-15 lead is used, simply your preset bearing where you plan to fire. Your bow shot should've had a set bearing of around 350 target coming left, 10 degree lead either direction works for slower targets, torps hitting at about 0 if you had correct factors. You're saying 00 for your aft shot, I assume you mean the target was coming from the right of your aft and you shot at 180, hitting somewhere in in the 170's, like the target got a little past the best shooting point, 190 would've been better, hitting at about 180 or reverse if coming the other direction.

Target going slow, 6 degree lead may have worked. Did you set a new bearing? You come off a 90 track by spinning around, I see problems if you didn't reset a new bearing ahead of the target, aob and correct speed. With a 90 the PK should be off, so you would've had to get all new info when you turned and I bet you weren't on a 90 track, not that you can't adjust, but the math may be off. Sometimes I'll lock the PK when I spin, so info is updated.

It's also possible the ship slowed down even more after you shot again since you hit it before, so sometimes it's good to shoot a spread, even shoot one more aft in case it slows. Using a fast 90 correctly you're shooting by the wire at the juicy parts of the ship.

Also possible the ship went into a zig....

Could be several things, but you'll figure it out after a few attacks. A fast 90 is really meant to be a one attack deal from bow of aft, not both. Can be rather hard to be in the right position and spin, but with a slow target if you turned to come in front you could set it up. Simply, if it's coming right off your bow and you shoot you could flank left turn and the sterns could be set up for another 90, obvious if you turned right into the target it is probably past a true 90.

The main thing is having about a 10 lead bearing set ahead of slower targets, about 20 works for me for ships going 15kts. Sometimes when I shoot at multiples using a 90, if the next target is say at a 0 bearing going left from my bow, you have to set the lead to 10 degrees, torps may hit at more angle, but OK. If you let a target go past the 90 track, gonna be tough.

I use to use a fast 90 for say a bow shot, spin and then do normal manual targeting. Now, I hate any method that locks me to a set course leaving my flank exposed to an escort, moreso with TMO, so I seldom use them.

I'm terrible at explaining things, maybe someone else can make it make sense.

I assume you studied RR's 90 fast attack video. He also has printable cards for 90 and other attacks.

[Captainchaos]

The ship was about 600yds for the stern shot, at 5knts & fast torps i figured 5 deg lead was plenty ( it worked).

Seems i was working backwards.. judging what the gyro angle said, then figuring when to fire rather than the other way around.

Maybe turning 180 does put you in a different location , that might be the trouble.. have to see next time!

By the way, tube 3 & 4 had older slower torps, should i allow a bigger lead for them? i shot at one ship 3000yds away with a similar setup.. for the slower torp i fired 1 deg early (it missed ahead slightly), the fast torp was spot on.

Must look if the speed of them is much different or just the range.

Thanks for the info :up:, i`ll just have to experiment & gain judgement by experience.

[Armistead]

I could see where that would work going 5kts. Go to Skipper bag of tricks and print RR's attack cards, will really help until you get it in your head. Often the aft bow, left right gets confusing, better just to remember lead angles, get correct speed, ect...

Did you use the 3 minute rule or what to get speed?

[raymond6751]

Could it be that the TDC setting was set with the target ahead, offset blah blah, and by turning around and not resetting, your torpedo was trying to fire at the previous settings?

I'm not sure if the TDC follows as in position keeper of SH4.

[Captainchaos]

I could see where that would work going 5kts. Go to Skipper bag of tricks and print RR's attack cards, will really help until you get it in your head. Often the aft bow, left right gets confusing, better just to remember lead angles, get correct speed, ect...

Did you use the 3 minute rule or what to get speed?

3 minutes & the ship would have been gone, i just went with what the radio message said..that was good enough this time.
I will take a look at RR`s cards.. Thanks.

"Raymond6751": Well.. probably yes, though i figured that if i turned, the target is still "ahead" if i switch to aft & at the same angle/setup..obviously it don`t quite work like that!

[Armistead]

You'll find you can use the 3 minute rule even with faster TF if you plot correctly and ahead. I assume you got speed off a radio message playing stock. That usually works if you're close. Couse two good stad measures and asking for speed will also get you close.

[Captainchaos]

You'll find you can use the 3 minute rule even with faster TF if you plot correctly and ahead. I assume you got speed off a radio message playing stock. That usually works if you're close. Couse two good stad measures and asking for speed will also get you close.

I`m with TMO 2.0, & yes a radio message (convoy tutorial).
Plotting correctly.. would work but my name is my nature in this game & i just hapened to be in a good spot before i knew it.

Better than before when i "up-periscope" to find the whole screen full of enemy hull. Not one crew member notified a ship in the vicinity :ping:

[Armistead]

Yea, sadly your sonarman is a failed issue in many ways. Before you come up make sure you ask him "for nearest warship" and he'll give you a clue on range, if close, be careful.

Usually a escort that close with sonar you'll be getting pinged, unless he has you on longscale and you want to chance it. Also doesn't hurt to turn and clear your baffles so your sonarman can hear behind you.

Without cams, sound is everything, helps to crank it up and even look up at the ceiling and you'll hear ships a lot easier.

Never forget a patrol or so ago I came up to shoot at a carrier, no escort near, but a Kongo BB ran me over as I was looking through the scope, pushed me down to 100ft, did some topside damage and saved the carrier. I let fly by sonar and only got one hit, course without cams had no clue what happened and had to do another long end around.