Need help shooting two targets at the same time.

Sniper297 · 04-05-15, 11:07 AM

Depends on the sea state and visibility. At night when the water is choppy and the wind is kicking up spray and whitecaps they might never see the wake at all, but in clear weather daylight with calm seas they can see the wakes from as far as 4000 yards. A Mark 14 set for high speed goes about 1500 yards per minute, so if you shoot from 1000 yards the target has about 40 seconds to detect and react. 500 yards gives him 20 seconds, time enough to say "EEEK!" but not much else. 2000 yards gives him one minute and 20 seconds, which is often enough. Attacking at night in choppy seas I have gotten a good percentage of hits with overlapping targets from 8000 yards with the fish set for low speed, but anything over 2500 yards in the daytime you need a lot of luck to actually hit anything except anchored ships.

When you think you're close enough, get closer.

merc4ulfate · 04-05-15, 07:44 PM

It is easy. With all doors open fire at the first then move the scope ten degrees towards the next one and fire at it too..

Sniper297 · 04-05-15, 08:53 PM

That's with auto targeting, with manual targeting you need to click the "Send range and bearing to TDC" button each time you move the scope, if you don't the gyros will send the next fish toward the previous target instead of the current one. That's the way it was done in real life too - range, bearing, AOB, target speed all entered, TDC tracking, "Final bearing and shoot, up scope!" Center crosshairs, click button, fire one, fire two, "shift targets!" - aim crosshairs at second target, forget speed range and AOB, just click the button to send the all important new bearing to TDC and fire away.

merc4ulfate · 04-06-15, 01:57 PM

Leave the scope where it is and turn your rudder fire at ten degrees offset.

Sniper297 · 04-06-15, 07:04 PM

I think we're starting to see the flaw in self education.

That would work, but shifting the scope 10 degrees and clicking the button is faster.

merc4ulfate · 04-06-15, 08:04 PM

Come on you have never done that?

I took three ships out without touching anything but the rudder. Manual set up. Scope set to zero. Most likely 1000 yards or less from the targets. All I did was turn the boat and fired 6 fish into three targets sinking all three.

You lose about 5 seconds for speed run up so you just lead the target. It is the same on radar or sonar bearing shots. You know that receiver has to go around so you never shoot at the target because it will always lead your line of fire. You can't sit at the sonar and at the scope so you learn to lead the target.

I took out the Yamato in a typhoon with an average yardage of about 1000-1500 using radar alone. You do not need math when you know how the devices your using work.

It is like using the Israeli instinctive shooting method. You just know where it is going.

Sniper297 · 04-06-15, 10:55 PM

Yeah, I'm familiar with "Kentucky Windage", my oldest son was a US Army artilleryman (motto, Ready, Fire, AIM!). IIRC it was Edward L Beach himself who used the "angle-off" method, guesstimate the speed, set range at 1000, speed and AOB in the TDC to zero so you have a zero gyro angle, then fire when the target hits the crosshairs 10 to 15 degrees left or right (depending on estimated speed and crossing direction). Instead of firing a spread, fire all tubes on the same bearing but spaced out 10-15 seconds apart, the motion of the target takes care of the spread all by itself.

I still find it much faster to shift scope, click send button, and fire than to turn the whole sub.

04-05-15, 07:44 PM	#2
merc4ulfate DILLIGAF Join Date: Feb 2007 Location: florida Posts: 2,058 Downloads: 210 Uploads: 0	It is easy. With all doors open fire at the first then move the scope ten degrees towards the next one and fire at it too.. __________________ Self-education is, I firmly believe, the only kind of education there is. ~Isaac Asimov~ Mercfulfate 将補日本帝國海軍

04-06-15, 01:57 PM	#4
merc4ulfate DILLIGAF Join Date: Feb 2007 Location: florida Posts: 2,058 Downloads: 210 Uploads: 0	Leave the scope where it is and turn your rudder fire at ten degrees offset. __________________ Self-education is, I firmly believe, the only kind of education there is. ~Isaac Asimov~ Mercfulfate 将補日本帝國海軍

04-06-15, 08:04 PM	#6
merc4ulfate DILLIGAF Join Date: Feb 2007 Location: florida Posts: 2,058 Downloads: 210 Uploads: 0	Come on you have never done that? I took three ships out without touching anything but the rudder. Manual set up. Scope set to zero. Most likely 1000 yards or less from the targets. All I did was turn the boat and fired 6 fish into three targets sinking all three. You lose about 5 seconds for speed run up so you just lead the target. It is the same on radar or sonar bearing shots. You know that receiver has to go around so you never shoot at the target because it will always lead your line of fire. You can't sit at the sonar and at the scope so you learn to lead the target. I took out the Yamato in a typhoon with an average yardage of about 1000-1500 using radar alone. You do not need math when you know how the devices your using work. It is like using the Israeli instinctive shooting method. You just know where it is going. __________________ Self-education is, I firmly believe, the only kind of education there is. ~Isaac Asimov~ Mercfulfate 将補日本帝國海軍

04-05-15, 11:07 AM	#1
Sniper297 The Old Man Join Date: Dec 2005 Location: Philadelphia Shipyard Brig Posts: 1,386 Downloads: 160 Uploads: 19	Depends on the sea state and visibility. At night when the water is choppy and the wind is kicking up spray and whitecaps they might never see the wake at all, but in clear weather daylight with calm seas they can see the wakes from as far as 4000 yards. A Mark 14 set for high speed goes about 1500 yards per minute, so if you shoot from 1000 yards the target has about 40 seconds to detect and react. 500 yards gives him 20 seconds, time enough to say "EEEK!" but not much else. 2000 yards gives him one minute and 20 seconds, which is often enough. Attacking at night in choppy seas I have gotten a good percentage of hits with overlapping targets from 8000 yards with the fish set for low speed, but anything over 2500 yards in the daytime you need a lot of luck to actually hit anything except anchored ships. When you think you're close enough, get closer.

04-05-15, 08:53 PM	#3
Sniper297 The Old Man Join Date: Dec 2005 Location: Philadelphia Shipyard Brig Posts: 1,386 Downloads: 160 Uploads: 19	That's with auto targeting, with manual targeting you need to click the "Send range and bearing to TDC" button each time you move the scope, if you don't the gyros will send the next fish toward the previous target instead of the current one. That's the way it was done in real life too - range, bearing, AOB, target speed all entered, TDC tracking, "Final bearing and shoot, up scope!" Center crosshairs, click button, fire one, fire two, "shift targets!" - aim crosshairs at second target, forget speed range and AOB, just click the button to send the all important new bearing to TDC and fire away.

04-06-15, 07:04 PM	#5
Sniper297 The Old Man Join Date: Dec 2005 Location: Philadelphia Shipyard Brig Posts: 1,386 Downloads: 160 Uploads: 19	I think we're starting to see the flaw in self education. That would work, but shifting the scope 10 degrees and clicking the button is faster.

04-06-15, 10:55 PM	#7
Sniper297 The Old Man Join Date: Dec 2005 Location: Philadelphia Shipyard Brig Posts: 1,386 Downloads: 160 Uploads: 19	Yeah, I'm familiar with "Kentucky Windage", my oldest son was a US Army artilleryman (motto, Ready, Fire, AIM!). IIRC it was Edward L Beach himself who used the "angle-off" method, guesstimate the speed, set range at 1000, speed and AOB in the TDC to zero so you have a zero gyro angle, then fire when the target hits the crosshairs 10 to 15 degrees left or right (depending on estimated speed and crossing direction). Instead of firing a spread, fire all tubes on the same bearing but spaced out 10-15 seconds apart, the motion of the target takes care of the spread all by itself. I still find it much faster to shift scope, click send button, and fire than to turn the whole sub.