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When im doing constant bearing attacks with 0 gyro angles.. i never use the TDC dials.
I have a precomputed table i made with lead angles. If it's a 90AOB shot, just look up the target speed and match it to the torpedo speed, move the scope from your nose towards the ship the number of specified degrees and shoot as he crosses. If it's not 90AOB you need to get his relative speed across your nose as if it WERE a 90AOB shot. Easily done with a quick vector calculation with the drawing tools. I keep saying im going to precompute these for all AOB's as well, but haven't had the time lately. Too busy playing. most of the time if your within +-30 degress and the range isn't that far, you can just assume a 90AOB shot. i dunno, playing witht he dials if you dont intend to move just seems pointless to me. All you really need to know is how fast he's moving across your nose and lead it. Probably because im a duck hunter in real life :P lately though, i've been using the PK alot for manuevering in and keeping tabs on where he is without needing to actually put the scope up and look at him, and then just turning it off just prior to shooting and using a constant bearing attack. Basically i track him with the PK to a good firing point, and when im about ready to fire i take that last range reading, shut of the PK, move the scope to the ships nose, and put in the new bearing with the same range (shouldn't change much to matter), and fire as the ship crosses the line. i do this because i hate having to manually adjust the spread angle wheel for each torpedo. |
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Rockin Robbins
See post #30 please. I need some help. Where do you input 293 degrees or how do you use it?
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i dont really subscribe to any pre-difned methods. Just like aerial combat.. if you go in with your mind made up, your SOL when the situation changes.
every situation has its own solution. i dont always do it with a constant bearing either. for a really long target or very slower mover i wont sit there and wait for him to travel all the way through. in that case when i shut it off the PK, i'll aim at the rear.. mark it fire.. aim at the center.. mark.. fire.. aim at the front.. mark.. fire.\ i go back to front in this case, becaue when i unlock the target and shut off the Pk, the sight is usually already at the rear. i only use my lookup table for when i dont have the time for a more accurate shot. just put yourself on a rough 90 degree course and fire at the specified lead angle. though if you take the time to setup for a perfect 90AOB shot, its impossible to miss. lately though, i've grown tired of doing that much plotting and figuring, and instead plot just enough to get me in visual range, and just work it with the PK till the fire point. i rarely look at the map anymore after i get visual. i also dont play with map contacts enabled.. because it makes the perfect 90AOB zero gryo shot just way too easy. |
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gutted
Captain, I assume you were addressing my post in this thread. I respond. Your disertation may be welcome and appreciated by others, as you are obviously an enlightened captain. My question was specific. You did not address it.
Maybe you assumed that I did not know how to use manual targeting (per Hitman's tutorial), the Dick O'Kane or Cromwell methods, Tale's techniques on attacking mutiple ships in convoys on the same or parallel courses, using sonar only, or was unaware of how to apply the Easy AoB mod (which I was instrumental in having promoted to a sticky thread)? Mine was a simple straightforward post. I did not understand one aspect of the tutorial on the point and shoot method. Period.:salute: |
i was going to reply to you, but having not read through the entire first post in detail (i skimmed over it, saw someone moving dials for a constant bearing attack and decided to post), and just assumed that 293 was for one thing, but after a closer look i decided to delete my post because i could have been wrong and didn't want to give you any wrong info.
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ok i read the intial post alittle more carefully this time.
293 is the "TRUE BEARING" equivalent of the relative bearing he needs to be looking at when he fires. since he's using the stock bearing lines (top of his scope) that don't have any intermidiate marks.. he has a really hard time telling exactly where 293 is. so he keeps issusing the "set course to where im looking" command until the crew says "set course bearing 293". since he's not moving he wont actually turn the ship. atleast thats the gist of what i got from it. his explination is alittle convoluted. |
I am making some progress
I finally hit the target in a practice mission. My problems are these. Once I get the true bearing of my boat, how to I get the radar man to announce its true course. I play TMO and there is no button to match heading to view. Since I am not moving, nothing happens when I hit the only button that appears relevant, which is the command to return to course. It is not operating because my ship is not moving, as I am in position to fire. Without a command to match heading to view, I have know way of knowing if my boat's heading matches the course (in the tutorial, it is the 293 degree angle). I think I have the rest pretty well in hand, but I have spent a lot of time to narrow it down to this question.
Also, I click the TDC button to send speed, range, and distance. Do I click that button when I set the periscope at the firing angle? Once I have this thing down, it will be easier for me to conceptualize it. I agree, the tutorial is not a model of clarity on a few points, but the concept is very interesting. Thanks for weighing in on this. It took me a while to be able to articulate these issues, as I haven't hit the target in multiple attempts until a few minutes ago. It appears you can either hit is with fast or slow torpedoes but not both fired in a single salvo. Whew, I am exhausted. |
i might have solved one of the issues
the key command for heading to view is the "=" sign.
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Using the lead angle line allows him to use the protractor to figure out exactly what the AoB at time of firing will be. The range along the sighting line is also the correct range for the TDC. Rocks'n'Shoals has no idea, and doesn't really need to care what his gyro angle is. He really doesn't know the course the torpedoes will take toward the target because he's letting the TDC figure that out for him. He knows by inspection that the gyro angle is under 30º, and all shots under a 30º gyro angle are considered straight fire according to the Submarine Torpedo Fire Control Manual. One thing he could do to simplify his method of setting the periscope bearing is to order the boat's course with the course setting tool instead of the compass. This would leave a line on the nav map showing the boat's heading. He could then use the protractor, clicking on the own heading line, clicking on the middle of the sub and then again somewhere up the sight bearing. Let's suppose that angle is 22º. In this case you would take 360º (same as a zero bearing) and subtract the 22º measured angle to set the periscope at 338º for your shoot bearing. That way you don't have to use the set heading to view key to trick the computer into telling you the true bearing of the periscope sight line. It's quite a bit quicker than Rocks'n'Shoal's trial and terror method too!:D Of course the absolute best solution would be to load up the 3000 yard/meter bearing tool and just read the relative bearing off the tool! |
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torpedo 1 = impact; torpedo 2 = impact; torpedo 3 = impact; torpedo 4 = "it's a dud, Sir" (it hit the target, as I witnessed the impact) impact.); torpedo 5 = impact; and, finally torpedo 6 = impact! I think I got it now. Rockn' shoals tutorial still confuses me, but your solution eliminates a step and seems (:haha:) to work. Thanks. |
The crew of that tanker you mercilessly incinerated do NOT thank you.:nope:
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You could also just set yourself up at any abritrary angle to the target and not even use the TDC dials.
What you do is draw a straght line from your nose to where it crosses the targets path (you're trrue bearing). this is the impact point. then draw a line from the impact point down the targets course towards the target equal to his speed (5kts, draw a 500m.) note: could be yards doesn't matter. adjust your "course" line (the first one you drews) so that it's length is equal to your torpedo speed (46kts fast fish, 4600m). then measure the angle between those two end points. .ie click at the impact point, then click at the end of your torpedo line, then the end of the ships speed line. note the angle, then turn your periscope that many degrees from 0 towards the target and wait for him to cross it. doing this is quicker, and uses a zero gyro angle. which means you can hit any ship that crosses that line extremely accurately regardless of it's range. i hosed a target like this from over 7000m the other day. so there you go. you as captain should have a large bag of tricks. just try not to hemm yourself into 1 way of doing things. Using the PK to track a taret is still important IMO.. because if the target changes course at the last minute, you can fall back on it. Happened to me last night. Was approaching from the front parallel to his course... and had him squarely tracked with the PK. after i turned in for the shot when the range was short, the target made a course change.. turning towards my inside. crap! so i kept my turn going and selected the stern tubes. readjusted his AOB to what it looked like and grabbed a quick stadimter and fired. BOOM! |
In the tutorial pics, the sub seems to be actually pointing a few degrees to the port side of the 'lead angle' line.
Won't this throw off the TDC calculations and won't his AoB be incorrect? here's the pic for reference... http://astro.nightsky.at/Download/ConstantBearing_3.jpg EDIT: Oh, nevermind...that black line is the sonar reading, I was thinking that was his line to shoot...obviously his line to shoot is the red one, in which case the zero degree line is not drawn in (the path the torpedos will travel). |
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