TUTORIAL VIDEO: Advanced Firing Solution using Sonar only

[sqk7744]

Moved here by request from:
http://www.subsim.com/radioroom/show...=108931&page=2

Originally Posted by Captain Krunch

"But let's pretend you don't change course. Ok, now the last bit of the puzzle is Angle on the Bow. You have two ways to use this. First, if you can determine the true course of the contact via plotting, you can input the contact's heading to determine AoB. "Sir, contact heading is plotted out to be 330 degrees!" You do not move the A, B, and Periscope dials; you move the C dial until the "0" degrees mark of the C dial is pointing to the "300" degrees mark of the B dial. When you do this, you look at the Periscope dial marker 180 degrees opposite the Periscope triangle. This marker points at "120", on the left side of the C dial ship, so this tells you that the contact AoB is 120 degrees port"
Krunch

----

The following (hopefully) illustrates Capn Krunches' example:
(it appears C (Enemy Vessel) wheel's 0 points to 330 and not 300, is that correct?)

BIG Thanks to Igorry for the Clarification on the Bow oriented up (12 o’clock position) and to Hitman for pointing out that the heading was 330 and not 300.

I wanted to provide an easy, clear 3D example of how this looks for my Mates on the Forum.

Cheers!

-----------------
Visual Aids...Yes Nurse Ratchet let me have an extra hour of arts and crafts time.

And now for the Players:

First-up The USS "Onkel" Stevens


Next, "The Enemy"




[The Set-up]
1) Sub Heading: 90
2) Target heading: 330
3) Target Bearing: 300
4) Target AOB: 120

1) USS "Onkel" Stevens Heading 090 (align your heading 090 on Wheel B to 180 of wheel A)
* Note Submarine examples do not contain the C Wheel for simplicity


2) Our Target Heading 330 (Align the 0 (zero) on Wheel C to Target course 330 of Wheel B)
* Note Target examples do not contain the Transparent Periscope Wheel for simplicity


3) TARGET BEARING 300 relative Sir! (Set the inside Arrow of the transparent Periscope Layer
"highlighted in Red" to 300 on the A Wheel.)


4) AOB=120 to Port Sir (now look at The Arrow Tip of the Periscope Layer on the A Wheel)
* Note: if the C (3rd inner) wheel were included the Tip of the Periscope Arrow wheel would point to 120.
This can be seen on the Is-Was image.


And as shown on the Is-Was


[In Summary]
The Photos:
1) Our Sub's Heading: 90
2) Target heading: 330
3) Target Bearing: 300 (the inside Arrow of the transparent Periscope Layer "highlighted in Red" on the A Wheel.)
4) Target AOB = 120 Shown by the Tip of the Periscope Arrow wheel Highlighted in Red Pointing at the C Wheel

The Wheels:
A Wheel = Our Submarine
B Wheel = True Compass Heading
Transparent Wheel = The Periscope/TBD/Binoculars "bearing" to target
C Wheel = Enemy/Target ship Heading

Hope this is correct and helpful!

Enjoy

[Couldn't resist the result!]

"BOOOOOOOOM!"


Load #3 Torpedo Attack:

Here's what you should see after a minute or two into the simulation:

Subs' Heading = 000 due north and speed 0
Target heading = 102.674 (let's use 100)
Bearing to Target = 325
AOB = 45 (42 if using Target heading of 102-103)
Target speed = 9knts

* TIP: once in Map view F3 hit backspace to pause the sim. When ready, hit the NumPab + (plus) key to continue.

You can check this by drawing a line out from your sub's center with the distance tool on your course to the 8^ 13' N

Now draw another line from the target's center until it intersects your course line.

Take the Protractor and draw a line from the Intersection point to the Target's bow, now left-click and draw another line to your bow. The Angle on the Bow should = 45 degrees for AOB=45.

Please let me know if I've understood this right.

Thanks!

[Herr Karl]

That hilarious!!

:rotfl:

[Iceman]

AWESOME Tutorial!...your as cooooool as a cucumber...great job there sir I salute you. I want you on any team I play on dang fine setup there.... I've been skooled..

[Kickbum]

Bloody good vid mate, thanks a lot. And your english and accent work very well indeed....

[Storabrun]

Originally Posted by WernerSobe

I have not guessed AoB. this method was exact. Look ive placed the boat 90° to the course. When your boat is right angled to the course you can just translate bearing into AoB. In the Video im saying that since the bearing was about 310 the AoB should be about 40. That was a mistake. It should have been 50. (310+50=360). Ive noticed it later and have corrected the AoB.

Its easier to use that method, otherwise id need to make another location mark.

You should probably change that back since your first AoB was correct. If you are set up 90 degrees to his course the AoB will increase up to 90 when he cross your bow at the bearing 0 (360). The bearing will increase from 310 to 360 (50), but AoB must increase by just as much (50) so it must be 40 at the time when bearing was 310.

[MudMarine]

Sqk7744,
The use of the SACF is clear as bell with that illustration. Thanks alot.

[popeye]

excellent tutorial! he sounds like a u-boat commander.

[JSF]

Thanks for the tutorial. That was very informative and helped explain several other aspects of the game I didn't understand till viewing your videos. Job well done Werner.

[sqk7744]

Originally Posted by MudMarine

Sqk7744,
The use of the SACF is clear as bell with that illustration. Thanks alot.

Happy it was of help m8

[TopcatWA]

Thanks for a great tutorial.

[Rockin Robbins]

I am just glad U-Boats didn't have a TDC. Just imagine how deadly they would have been then! I still enjoy playing SH3 more, but Verner, you have just added a new dimension to the American U-Boat that makes it a very interesting weapon. I wonder if American and German U-Boat captains met and swapped stories after the war. I know from some of the American captains' books that they studied U-Boat aces very carefully in determining tactics in the Pacific. In better times they would have been friends.

[AVGWarhawk]

First time I watched this and it is awesome. I have a better understanding of pinging the target and getting useful information from it.

[Treylis]

Wind 17m/s outside, heavy fog, heavy rain, 0130 hours, zero visibility. I hear a lone merchant coming along and I position myself correctly, pause, alt-tab to review your video, and launch two torps, both hit perfectly, the first instantly destroying the... uh-oh, "Friendly Unit Destroyed".


At least the technique works fine, haha. I'm wondering if I should load my pre-firing save or take my lumps because it amuses me so much.

[chopped50ford]

that tutorial was awesome. how do I get one of those wheels.

[EyeGee]

Thanks for taking the time to make a great tutorial