TDC and torpedo speed

Krucius_Nayl · 04-01-17, 08:31 AM

Hi all, nice to meet you, I hope you are well!

I'm having a little difficulty with TDC and I was hoping some more experienced sub captains might be able to share a nugget or two of wisdom.

For the most part I understand how the system works, I can calculate range, AOB etc. and my torpedos definitely take the right course, however I do get misses due to, I assume, torpedo speed.

Does TDC not take into account the speed you set the torpedo at when calculating the firing solution?
If it doesn't, is there a rule of thumb to use? Such as <1000m = slow, 1k-2k = medium and >2k = fast?
Or better yet is there a mathematical formula for calculating it based on target speed and distance?

Any help would be hugely appreciated

finchOU · 04-01-17, 07:55 PM

It depends.......

First off yes...Torpedo speed affects the Gyro angel which the TDC solves for.

Generally speaking the Good thing about the Fast setting is that the Torpedo takes less time to hit your target. Meaning any errors in your calculation are minimized and allows less time for your Enemy to change course or speed. The bad thing is you can't lob them from long range like you can if you use the slow setting.

Slow setting allows you more of a "stand off" capability. You can lob them from long distances and turn around and speed away on the surface before the enemy zeros in on the place where you launched from. But your calculations need to be perfect and the longer run time allows the enemy to change course.

For my personally, when attacking a convoy, I'll use slow torpedoes first and long ranged targets.....and fast torpedoes for closer targets...and try and time them to all hit about the same time to minimize the their ability to change course and speed when your first torpedo hits or is spotted in the water.

Aktungbby · 04-01-17, 08:14 PM

Krucius_Nayl!

fire-fox · 04-02-17, 03:30 AM

Also that is why most sub commanders would fire a spread of 2 - 4 torpedos at a target. I like the set up so I fire at 0 gyro angle ( as the gyro is locked for the first 50 meters or so of there run - creating adding further to any errors ).

Then fire one as the forward mast or first 1/4 -1/3 crosses my vertical line on the scop and the second as the last at about the last 3/4 - 2/3 crosses that way at least one hits if it slows or speeds up / turns in either direction or you speed is out.

THEBERBSTER · 04-02-17, 07:22 AM

A Warm Welcome To The Subsim Community > Krucius_Nayl
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Less chance of a dud with fast torpedoes.

Krucius_Nayl · 04-08-17, 02:13 PM

Wow thanks for the info guys. Sorry I didn't reply a little sooner but I've been out of action with man flu :p

My problem was ships taking evasive manoeuvres, particularly slowing down once they spotted my torpedo. I toyed with the idea of taking wakeless torpedos but...eh. Instead I found myself a lone merchant, saved the game and played it over and over as a mini-scenario to come up with a way to hit them regardless of what they do.

I'm now hitting 90-95% of the time and I'm fairly happy with that.

Now if only I could get the damn tonnage bars to work...

04-01-17, 08:31 AM	#1
Krucius_Nayl Nub Join Date: Mar 2017 Location: UK Posts: 2 Downloads: 6 Uploads: 0	TDC and torpedo speed Hi all, nice to meet you, I hope you are well! I'm having a little difficulty with TDC and I was hoping some more experienced sub captains might be able to share a nugget or two of wisdom. For the most part I understand how the system works, I can calculate range, AOB etc. and my torpedos definitely take the right course, however I do get misses due to, I assume, torpedo speed. Does TDC not take into account the speed you set the torpedo at when calculating the firing solution? If it doesn't, is there a rule of thumb to use? Such as <1000m = slow, 1k-2k = medium and >2k = fast? Or better yet is there a mathematical formula for calculating it based on target speed and distance? Any help would be hugely appreciated

04-01-17, 07:55 PM	#2
finchOU Samurai Navy Join Date: Jan 2004 Posts: 571 Downloads: 77 Uploads: 0	It depends....... First off yes...Torpedo speed affects the Gyro angel which the TDC solves for. Generally speaking the Good thing about the Fast setting is that the Torpedo takes less time to hit your target. Meaning any errors in your calculation are minimized and allows less time for your Enemy to change course or speed. The bad thing is you can't lob them from long range like you can if you use the slow setting. Slow setting allows you more of a "stand off" capability. You can lob them from long distances and turn around and speed away on the surface before the enemy zeros in on the place where you launched from. But your calculations need to be perfect and the longer run time allows the enemy to change course. For my personally, when attacking a convoy, I'll use slow torpedoes first and long ranged targets.....and fast torpedoes for closer targets...and try and time them to all hit about the same time to minimize the their ability to change course and speed when your first torpedo hits or is spotted in the water. __________________ Intel i7-2700K-3.50GHz, 16 GB RAM, 2 xGTX 560,2GB,SLI,2 TB HD The Wolves of Steel 1.06 The Wolves of Steel 1.06 Update 05c

04-01-17, 08:14 PM	#3
Aktungbby Gefallen Engel U-666 Join Date: Jul 2013 Location: On a tilted, overheated, overpopulated spinning mudball on Collision course with Andromeda Galaxy Posts: 30,006 Downloads: 24 Uploads: 0	welcome aboard! Krucius_Nayl! __________________ "Only two things are infinite; The Universe and human squirrelyness?!!

04-02-17, 03:30 AM	#4
fire-fox Chief Join Date: Mar 2004 Location: Peoples Republic of West Yorkshire Posts: 326 Downloads: 70 Uploads: 0	Also that is why most sub commanders would fire a spread of 2 - 4 torpedos at a target. I like the set up so I fire at 0 gyro angle ( as the gyro is locked for the first 50 meters or so of there run - creating adding further to any errors ). Then fire one as the forward mast or first 1/4 -1/3 crosses my vertical line on the scop and the second as the last at about the last 3/4 - 2/3 crosses that way at least one hits if it slows or speeds up / turns in either direction or you speed is out. __________________ Running subs aground since SH1 and Silent Service Running SH5 @ 100% difficulty + TWoS 2.2.19(RealNav + BDU + port smoke + food) + Carotio_IntercontinentalRadioPack tweaked + The Little Ships of SH5 - Coaster Pack

04-02-17, 07:22 AM	#5
THEBERBSTER Growing Old Disgracefully Join Date: Dec 2012 Location: Hythe - Southampton Posts: 9,609 Downloads: 1133 Uploads: 0	A Warm Welcome To The Subsim Community > Krucius_Nayl Subsim <> How To Donate <> See The Benefits <> Support The Community If you are new to SH5 look > > HERE << STEAM is not compatible with the essential application TDW’s Generic File Patcher Steam Conversion Installation Instructions for SH5 Updated Version Highly Recommended SH5 > The Wolves Of Steel Mega Mod > Includes > Optional KSDCommander And Working Enigma M4 Machine > Sub Flags Less chance of a dud with fast torpedoes. __________________ LSH3-2015 <> TUTORIALS <> ALL YOU NEED TO KNOW <> ALL IN ONE PLACE SH4 <> TUTORIALS <> HOW TO DO IT <> INFORMATION <> DOWNLOAD LINKS SH5 <> TUTORIALS <> HOW TO DO IT <> INFORMATION <> DOWNLOAD LINKS Always Here To Help A Fellow 'Subber' \| Need An Answer to A Question Just Send Me A PM

04-08-17, 02:13 PM	#6
Krucius_Nayl Nub Join Date: Mar 2017 Location: UK Posts: 2 Downloads: 6 Uploads: 0	Wow thanks for the info guys. Sorry I didn't reply a little sooner but I've been out of action with man flu :p My problem was ships taking evasive manoeuvres, particularly slowing down once they spotted my torpedo. I toyed with the idea of taking wakeless torpedos but...eh. Instead I found myself a lone merchant, saved the game and played it over and over as a mini-scenario to come up with a way to hit them regardless of what they do. I'm now hitting 90-95% of the time and I'm fairly happy with that. Now if only I could get the damn tonnage bars to work...