SH5 Dick'O Kane (DoK) Tutorial

[Aufklarer]

Slide 11



While we are here adjust the range to maximum, range should not be an issue although it should be noted that accuracy is decreased the further the target is an extreme shots (over 2k) could possible miss.




Slide 12



At this point we have half the solution, give yourself a break and set your torpedoes up, set all to fast and if you have enough time individually set depth to match your chosen targets. Right back to the protractor.




Slide 13



Ok we will opt for a lead angle on our targets of 10' (There is no hard and fast rule but the greater the lead angle you give the less accurate your solution becomes, keep this in mind). To set up our Angle Off Bow it is very simple. As we are going to give a lead of 10' we will be firing before the target is directly in front of us. So 10' early will be 90' minus 10' which gives a result of 80'. We will fire when our submarine is 80' to starboard of the target ship. Use the protractor to plot that on the map as shown. (In bad weather when you cant see the targets you can extend this line across the convoy and fire blindly when you see sound readings crossing this line, and still accurately hit).




Slide 14



Input 80' to starboard on the dial like shown.




Slide 15



The final thing to do is set your bearing. Now remember we said we would lead the target 10'. Wherever you sub is pointing is a bearing of 0' if we lead a target by 10' then we need to set out attack periscope to 0' minus 10' giving a result of 350'. Do that now using the graticules on your scope.




Slide 16



Check my minimap and you should have something like this, you are now ready to unleash the tadpoles of doom. (note - due to the tanker being slightly ahead of the rest of the ships in the first line, i decided to engage the second line of ships) That is the beauty of this method it is very forgiving and versatile. (At this point a gyro angle of 000 will result in a perfect torpedo intercept course, however as you can see when i fire it is around 7.4)




Slide 17



Right without moving your periscope left or right wait for a target to pass through your crosshair, as soon as the part of the boat you want to hit is in your cross fire a torpedo. If you followed the steps accurately and made the perfect solution your torpedo will hit the exact point you fired it. I fired 1 torpedo at the bow wave and one at the first mast.




Slide 18



As you can see here from the minimap all 4 torpedoes are in the water unfortunately as my first 2 torpedoes passed the bottom left hand merchant he managed to spot their wake and alerted the rest of the convoy, now all ships are making evasive manouevres! How vigilant! trying to mess up my tutorial is he?




Slide 19



So the net result was 2 sunk and the furthest target evaded 1 torpedo but my second still got him, after 30 minutes he had taken on alot of water and slowed to 2 knots. His convoy left him to his fate and i introduced him to Hans Myer my deckgunner.

As you can see even though they started evasive manouevres early in the engagement i still scored good hits, and the furthest target at approx 2k still couldnt evade, even after i aimed at his bow.

I hope this has been of some use to you if you have read this through and put it into practice. Even if this method is not your chosen one hopefully it has been a display of the fundamental basics that all solutions require.

Happy hunting men!

Dieter Von Houghton signing out........

[Westbroek]

Nice tutorial.
All hale Rear Admiral O'Kane!

[BigBANGtheory]

Wow this guide is gonna take longer to digest than the salt water crocodile's meal of the year. Nicely done

[Aufklarer]

i thought id make it as detailed as possible so as to eliminate as many questions as possible

[gutted]

You dont need to be at exactly 90 degrees... and you are not even leveraging the biggest plus of the U-Boats TDC.. the linked AOB & periscope.

It can function as a pseudo lead angle solver.


1. Approach target from a desired angle (doesn't have to be exactly 90 degrees). It could be 60 or 30 or 45.. whatever.
2. Input the target's AOB if you are looking at him.. or put the scope at 000 and enter what it would be if he was on your nose.
3. Input the targets speed.
4. Input any range.
5. Move the scope until the gyro reads 0. (this is your lead angle)
6. Fire when the target reaches the periscope line.

Works for any speed.. any angle.. any range. And you dont have to draw a thing on the map.

7. If you dont want to wait for him to cross your "lead angle", you need to input an accurate range and fire whenever.

Your abritrary 10 degree lead is only valid for a specific torpedo speed, taget speed, and intercept AOB. If he was going faster or slower (or you used a slower torpedo) you would miss.

Use the TDC. It is smart.

[Aufklarer]

Originally Posted by gutted

You dont need to be at exactly 90 degrees... and you are not even leveraging the biggest plus of the U-Boats TDC.. the linked AOB & periscope.

It can function as a pseudo lead angle solver.


1. Approach target from a desired angle (doesn't have to be exactly 90 degrees). It could be 60 or 30 or 45.. whatever.
2. Input the target's AOB if you are looking at him.. or put the scope at 000 and enter what it would be if he was on your nose.
3. Input the targets speed.
4. Input any range.
5. Move the scope until the gyro reads 0. (this is your lead angle)
6. Fire when the target reaches the periscope line.

Works for any speed.. any angle.. any range. And you dont have to draw a thing on the map.

7. If you dont want to wait for him to cross your "lead angle", you need to input an accurate range and fire whenever.

Your abritrary 10 degree lead is only valid for a specific torpedo speed, taget speed, and intercept AOB. If he was going faster or slower (or you used a slower torpedo) you would miss.

Use the TDC. It is smart.

Points taken, however this is designed to show the DoK method as previously mentioned and is taken verbatum from previous explainations just using SH5 as the 'platform' to help newer people to the game.

While a slower torpedo or faster target will cause the shots to miss i have had success with this method on targets ranging between 6-11 knots up to distances of around 2k. Bearing in mind this is primarily for use against large convoys where a miss will likely result in a potential hit on a differing ship. I understand that your method stated above is wholly more accurate but it isnt the DoK method which is what i hoped to demonstrate in this tutorial.

Drawing on the map helps grasp the basics, for me especially pictures paint a thousand words i hoped it would help others too.

[gutted]

Fast Torpedo (44kts) vs. a target at 90 Intercept AOB:

Target Speed - Lead Angle
5kts - 6.5 degrees
7kts - 9 degrees
9kts - 11.6 degrees
11kts - 14 degrees

The error in degrees is amplified by range.

90 degree intercept (medium speed 40kt torpedo)
5kts - 7.1 degrees
7kts - 9.9 degrees
9kts - 12.7 degrees
11kts - 15.4 degrees

Nearly a whole degree difference (on average).. just changing the torpedo speed.


60 degree Intercept AOB (44kt torpedo):
5kts - 5.3 degrees
7kts - 7 degrees
9kts - 9.1 degrees
11kts - 10.9 degrees


All values found using my "Solution Solver" (which in itself is totally not needed, and is more of a toy).

If you use the TDC how it's supposed to.. you will get the correct lead angle for any speed and any intecept angle.

[gutted]

I understand that your method stated above is wholly more accurate but it isnt the DoK method which is what i hoped to demonstrate in this tutorial.

I totally understand what you're trying to do. But i think it's more important to point out to people who dont know how all this stuff works... what exactly is going on... and what to expect if they stick to a step by step rigid inflexible method.

I was never a subscriber to the DOK method in SHIV btw.

Sorry if i hijacked.. i wont bother the thread anymore.

[kylania]

Nice tutorial! However as gutted pointed out, using the Fast90 or DOK method on a u-boat without using the gyroangle feature is an oversight imo.

All the AOB and lead stuff isn't needed. Just rely on the gyroangle rather than just say "I'm gonna use a 10 degree lead". The gyro shows you why (due to speed) you'd need 10 or 20 or whatever degree lead. Set the scope to 0, set 90 degrees AoB (required for this attack method) and turn the scope back so you're at 000 gyroangle and fire when ships pass center line. Personally I'd also use the meters in 3m 15s divided by 100 for the speed rather than L/T divided by 1.94. 100 is easier to remember than 1.94, way easier math and it doesn't require you to keep your scope still and exposed for the minute or so it takes to cross.

Surely all these various methods "work". The thing about the Fast90 approach I always loved was how quick and easy it is. Reducing math and letting the gyroangle work for you is a big part of that approach for me. Keeping it simple is the key.

[bilgepump]

Nice tutorial Aufklarer, thanks for posting it!