Rockin Robbins Fast 90's question

[bebop]

I know how annoying it is when a Nub is asking very basic questions without using "search" facility or showing efforts to do more self learning, so be gentle guys, I have been trying to figure this out for the last couple of days.

Rockin Robbins' tutorial (credits for his sense of humor:DL):

This guy is always going to be set at 90º. All we have to do is figure out whether it should be right or left. Think of this as "what side of the target am I looking at." Our guy is coming left to right, so we're looking at his starboard (right or recht side). Now if you're a boater, you know green is starboard and red is port (port wine is red), but if you're not, just look over at the bearing dial which says "bug recht" on the green side. This is just like the old multiple guess test in school. Half the answers are in the other questions. Set this needle to 90º right. (If he were coming from the right, we'd set it to 90º left. But he's not so we're not.) Done! This is too easy. Are you sure we can DO THIS????


By "if he were coming from the right, we'd set it to 90 degrees left", does it mean that we always set 90 degrees left whenever the target is coming from right and vice versa no matter what the precise target's angle is?

This confuses me since a video from YT telling us that we measure the AoB precisely (and he updates it twice).


Thank you in advance.



Regards

[magic452]

To shoot a "Fast 90" you must do two things.

First plot the target's course.

Second plot your intercept course so that when you get to your firing position
you are perpendicular or 90° to the target course. Hence Fast 90.

If the target is coming from your right you will be shooting at the target's left or port side. Coming from the left, shooting at right or starboard side.
Set the AoB port or starboard depending on which side you'll shoot at.

You set AoB to 90 because that is what the AoB will be when you shoot.
Might not be exactly 90° but very close.

I don't know what the "video from YT" is but make sure you are not mixing up two different shooting methods. If he is setting the AoB and updating it, it sounds like some other method.

Magic

[WernherVonTrapp]

I know how annoying it is when a Nub is asking very basic questions without using "search" facility or showing efforts to do more self learningWhat makes you say that?

See? Magic was right on top of things for you.:03:

Anyway:
http://i1045.photobucket.com/albums/b456/archangel501/Smileys/89ad3696.gif

I know, I probably welcomed you already, but seein' hows I like to use smileys and all, well, you know what I mean.:D

[bebop]

If the target is coming from your right you will be shooting at the target's left or port side. Coming from the left, shooting at right or starboard side.
Set the AoB port or starboard depending on which side you'll shoot at.



Picture a needle. So when the target is moving from left to right (as I will aim its starboard), I have to move AoB needle 90 degrees to the left?

What makes you say that?

See? Magic was right on top of things for you.:03:

Anyway:
http://i1045.photobucket.com/albums/b456/archangel501/Smileys/89ad3696.gif

I know, I probably welcomed you already, but seein' hows I like to use smileys and all, well, you know what I mean.:D


Thank YouMr Von Trapp :salute:

[WernherVonTrapp]

http://i1045.photobucket.com/albums/b456/archangel501/9f0f2af1.gif

:salute:

[Platapus]

Wish I had a dollar for every time I set up using the wrong orientation. :damn::damn:

It happens. For some of us, it happens more often. :D

[WernherVonTrapp]

I knew:hmmm: I forgot to add something to that illustration.:damn:
Right to Left (on the bottom). <---

Left to Right (on the top). --->

:doh::nope:

[magic452]

The Port and Starboard on the AoB dial refer to the target ship not your boat.
If it is coming from the right to left you will set the AoB dial to Port (left) that is the side of the target you'll see.


Target. <---------



Your boat is here ^

You are looking at the left side, set the AoB to 90° Port.

Magic

[Rockin Robbins]

Werner, you forgot to show the torpedo track turning the wrong way when port was entered instead of starboard!:har: It sure isn't funny when I do it.

Always check the projected torpedo track on the attack map. That will show you which direction the torpedo is turning. It should turn to lead the target by enough to make a nice loud BOOM!

@OP, yes on the U-Boat you always sight the periscope straight ahead on the zero bearing, set the AoB to 90, then lock the TDC to the periscope. That way as you turn the periscope, it will automatically enter the correct AoB into the TDC. Remember! On the German TDC there is no "send info to TDC" button. The TDC is continuously updated by the position of the periscope. If you've got an attack set up, you can't go watch the girls on the beach unless you want to send a nice fast torpedo their way! Move the scope off the target and you've got a bad solution!

U-Boat guys say "how stupid could RR be! Of course that's how it is." Fleet boat guys say "that seems like a really stupid system. No WONDER I've been missing all the time." It's all what you're used to.

[bebop]

Werner, you forgot to show the torpedo track turning the wrong way when port was entered instead of starboard!:har: It sure isn't funny when I do it.

Always check the projected torpedo track on the attack map. That will show you which direction the torpedo is turning. It should turn to lead the target by enough to make a nice loud BOOM!

@OP, yes on the U-Boat you always sight the periscope straight ahead on the zero bearing, set the AoB to 90, then lock the TDC to the periscope. That way as you turn the periscope, it will automatically enter the correct AoB into the TDC. Remember! On the German TDC there is no "send info to TDC" button. The TDC is continuously updated by the position of the periscope. If you've got an attack set up, you can't go watch the girls on the beach unless you want to send a nice fast torpedo their way! Move the scope off the target and you've got a bad solution!

U-Boat guys say "how stupid could RR be! Of course that's how it is." Fleet boat guys say "that seems like a really stupid system. No WONDER I've been missing all the time." It's all what you're used to.

LOL.. For the beach girls, my torps are always ready to be unleashed, they will never miss..

Thanks for your explanation sir. I really appreciate it, these past few weeks I have been trying to figure this out. So it is much easier (simple) than the fleet boat.

Correct me if I'm wrong. So to conclude, here what I should do:
Assuming target is coming from right to left.

1. Spot the target.
2. Set my periscope to bearing 0.
3. Turn on the TDC.
4. Move the AoB needle to 90 degrees left (red area).
5. Set desired range (double it like you said)
6. Set speed ... Annd turn off the TDC
7. Go back to periscope and follow the target.
8. At 20 degrees. Unleashed torpedos that can't be set to fast.
9. Or shoot at 15 degrees if we have ones that can be set to fast.
10. And I can go to the bathroom.

Am I correct?


Thanks in advanced. Your tutorial is exceptional.


Regards

[Rockin Robbins]

Correct me if I'm wrong. So to conclude, here what I should do:
Assuming target is coming from right to left.

1. Spot the target.
2. Set my periscope to bearing 0.
3. Turn on the TDC.
4. Move the AoB needle to 90 degrees left (red area).
5. Set desired range (double it like you said)
6. Set speed ... Annd turn off the TDC
7. Go back to periscope and follow the target.
8. At 20 degrees. Unleashed torpedos that can't be set to fast.
9. Or shoot at 15 degrees if we have ones that can be set to fast.
10. And I can go to the bathroom.

Am I correct?


Thanks in advanced. Your tutorial is exceptional.


Regards
1. check!
2. check!
3. check!
4. If you are looking at the starboard side of the target you set to starboard. Looking at the port side, set port.
5. Hmmmm. I never said double it. Actually with a Fast 90 attack the range doesn't matter much at all. A rough estimate and slam it in there will hit every time. Then the most important thing is to lock the TDC to the periscope so when you turn the scope the AoB changes.
6. Don't turn off the TDC. Just make sure it's locked to the periscope before you move the scope off the zero mark.
7. check!
8. 20, 15, 10 you're going to hit it. For lowest gyro angle and a target under 10 knots 10 degrees works really fine.
9. Going to the bathroom while torpedoes explode not far off can have embarrassing consequences......:o

[WernherVonTrapp]

Werner, you forgot to show the torpedo track turning the wrong way when port was entered instead of starboard!:har: It sure isn't funny when I do it.
Uugh, that can only mean one thing. That I misunderstood and FUBARed the illustration.:nope::doh: