TDC Torpedo speed bug - or why those T-III's miss alot

[Ducimus]

Anyone else have a problem with eletric fish missing alot even with a perfect firing solution? For the longest tiem i couldnt figure out why. Then on a whim i was looking over this url:

http://www.paulwasserman.net/SHIII/#...al%20Targeting

and found buried in there the reason why:

WARNING: There is a *nasty* bug as of version 1.2 that will cause misses in certain situations if switching between different types of torpedoes with differing speeds. In order to protect against this bug, you MUST click the TORPEDO SPEED switch EVEN IF that selected torpedo only has one speed setting after you select
the torpedo. This will update the gyro with the new torpedo speed.



EXAMPLE: If you have Tube #1 selected with a Type I Steam Torpedo set to FAST (i.e. 44 knots), the gyro will set accordingly for the speed of the torpedo to correctly lead the target. If you then switch to Tune #3 containing a Type II Electric Torpedo
that only has one speed setting (i.e. SLOW of 30 knots), the gyro WILL NOT BE UPDATED to reflect the slower torpedo speed UNLESS TO TORPEDO SPEED SWITCH is clicked resulting in a probable missed shot.

I just confirmed this in game. I prefer to carry T-1's in tubes 1 and 2, and T-3's in tubes 3 and 4. With that setup, targeting a ship with T-1's on fast setting, and then changing to the T-3's, the gyro angle (once corrected) was around 5 or 6 degree's off!

So... there ya have it. Learn something new everyday. Of course with my luck, im sure im probably the last person on the forum to know about this.

[ReallyDedPoet]

On a different note Ducimus, nice log there with U-125

RDP

[Paajtor]

I didn't know this, but have noticed it I think (strange TIII misses)...something to remember on next attack.

[Mush Martin]

thanks for the tip
MM

[AVGWarhawk]

Interesting because I suck with these torps and I guess this is the reason. Awesome update!

[Ducimus]

Originally Posted by reallydedpoet

On a different note Ducimus, nice log there with U-125
RDP

Thanks. You motivated me to toss up U-184. Ive been sitting on that log for awhile. Was one of my better career games. Not a GWX career, but my own highly modded version of UC vanilla and in some respects harder then GWX. Towards the end, i just gave up. Got too frustrating, and i was too tired to continue past jan 45.

Originally Posted by AVGWarhawk

Interesting because I suck with these torps and I guess this is the reason. Awesome update!

Gives you a whole new zest for using those black eels in GWX doesnt it?

[Finback]

Thank You for the info!!! I've always wondered why so many electrics miss but now it makes sense. Thinking back, it only seems like I had Horrible luck with them after shooting a steam 1st.

Thanks Again!!!

[Payoff]

So I guess we need to get in the habit of performing this obsessive compulsive little click speed tick every time. . .



So I guess we need to get in the habit of performing this obsessive compulsive little click speed tick every time. . .



So I guess we need to get in the habit of . . .:p

[Abd_von_Mumit]

There is another bad bug with torpedoes and TDC I found:

When I set my TDC while my scope is on 0 bearing and then turn it back to somewhere between 140-220 deg. bearing, TDC gets crazy. For example (with aft torpedo selected) at 140 degs it indicates 30 deg. torp. bearing, at 130 the offset becomes 0 and at 120 it becomes 10 deg. Looks like the values were randomized.

I had a close look at that after numerous times in convoys, that all my bow torpedoes hit the ships and none aft torpedos did.

[joea]

Ummm

WARNING: There is a *nasty* bug as of version 1.2 that will cause misses in certain situations if switching between different types of torpedoes with differing speeds. In order to protect against this bug, you MUST click the TORPEDO SPEED switch EVEN IF that selected torpedo only has one speed setting after you select
the torpedo. This will update the gyro with the new torpedo speed.

This was for 1.2 is it still there for 1.4? I thought it was fixed?

[Lanzfeld]

HA!

We finally have simulated a real world torpedo failure!

[Ducimus]

Originally Posted by joea

Ummm

This was for 1.2 is it still there for 1.4? I thought it was fixed?

Nope, not fixed. Still there. Thats why i posted this. I confirmed it in game. Easy to do. Load your tubes so you have a salvo of steam, and a salvo of electric fish. Select the steam salvo, put it to fast speed. Then change salvos to your electric salvo. Look at the gyroangle, then click the torpedo speed again and watch it change by about 5 or 6 degrees.

[Karl-Heinz Jaeger]

Originally Posted by Abd_von_Mumit

There is another bad bug with torpedoes and TDC I found:

When I set my TDC while my scope is on 0 bearing and then turn it back to somewhere between 140-220 deg. bearing, TDC gets crazy. For example (with aft torpedo selected) at 140 degs it indicates 30 deg. torp. bearing, at 130 the offset becomes 0 and at 120 it becomes 10 deg. Looks like the values were randomized.

I had a close look at that after numerous times in convoys, that all my bow torpedoes hit the ships and none aft torpedos did.

I take it that was using manual input? Firing the aft tubes manually always confused me, and more often than not led to miss after miss.

On manual input I ALWAYS attack on a 90 degree intercept angle, and usually fire my torpedos 10 degrees to one side of the 90. So when setting my torps, I set the Target Bearing dial to 0, then the AOB dial to 90 degrees on whatever side I am attacking from. Then I set the target bearing dial to 10 on the OPPOSITE side that the AOB dial is at. So if the AOB dial is 90 degrees on the RED side, I know that the target bearing dial will be 10 degrees into the GREEN side. This corrects the AOB to 80 degrees and sets up my shot perfectly.

So, when attacking with the bow tubes, if your AOB dial is set to the RED side, your Target Bearing dial will be 10 degrees on the GREEN side.

Sound familiar?? Good!

The thing to remember is when firing the Aft torpedo's this system is somewhat skewed. Firstly, set your Target Bearing dial to 180. Then set your AOB dial to 90 degrees on whatever side you are attacking from. The thing to remember here is that if your AOB dial is on the RED side while firing the aft tubes, the Target Bearing dial will be set 10 degrees on the SAME side as the AOB dial, in reverse of a bow shot. This corrects the AOB dial to 80 degrees and sets up my aft shot perfectly.

So, when attacking with the aft tubes, if your AOB dial is set to the RED side, your Target Bearing dial will be 10 degrees on the RED side also.

This may not be the cause of everyone's problems, but I felt compelled to post it since it gave me such trouble.

[Abd_von_Mumit]

Originally Posted by Karl-Heinz Jaeger

I take it that was using manual input?

Yes.

Originally Posted by Karl-Heinz Jaeger

On manual input I ALWAYS attack on a 90 degree intercept angle, and usually fire my torpedos 10 degrees to one side of the 90. So when setting my torps, I set the Target Bearing dial to 0, then the AOB dial to 90 degrees on whatever side I am attacking from. Then I set the target bearing dial to 10 on the OPPOSITE side that the AOB dial is at. So if the AOB dial is 90 degrees on the RED side, I know that the target bearing dial will be 10 degrees into the GREEN side. This corrects the AOB to 80 degrees and sets up my shot perfectly.

So, when attacking with the bow tubes, if your AOB dial is set to the RED side, your Target Bearing dial will be 10 degrees on the GREEN side.

If I undertstand your description, what you do is not needed, as there is simpler way to do it:
- set your scope (or UZO) to 0 bearing,
- switch to manual TDC,
- set your Bearing to target to 0,
- set the AOB to 90/270,
- switch to automatic TDC,
- turn your scope in whatever direction you need, will it be 10 degrees left or right (doesn't matter).

For aft shots you could do it that way (some other possibilities too):
- set your scope (or UZO) to 180 bearing,
- switch to manual TDC,
- set your Bearing to target to 0,
- set the AOB to 90/270,
- switch to automatic TDC,
- turn your scope in whatever direction you need, will it be 10 degrees left or right (doesn't matter).

[Karl-Heinz Jaeger]

Originally Posted by Abd_von_Mumit

Yes.

If I undertstand your description, what you do is not needed, as there is simpler way to do it:
- set your scope (or UZO) to 0 bearing,
- switch to manual TDC,
- set your Bearing to target to 0,
- set the AOB to 90/270,
- switch to automatic TDC,
- turn your scope in whatever direction you need, will it be 10 degrees left or right (doesn't matter).

For aft shots you could do it that way (some other possibilities too):
- set your scope (or UZO) to 180 bearing,
- switch to manual TDC,
- set your Bearing to target to 0,
- set the AOB to 90/270,
- switch to automatic TDC,
- turn your scope in whatever direction you need, will it be 10 degrees left or right (doesn't matter).

That means I've been doing things the really complicated way for 2 1/2 years now!

I was always wary of trusting the UZO to correct the angle when using Manual Input, so I set up everything myself seperately for each shot. What a Bernard I have been, I've missed more often than not on my second shot because I panicked and rushed the adjustments. To think of all the tonnage I've let slip by me. Do me a favour guys and....***whispers***Don't tell my crew!!

:rotfl: :rotfl: :rotfl: