point and shoot video, by radar

[greyrider]

this is a video of the point and shoot technique using just the radar. its 153 mbs.

http://hosted.filefront.com/greyrider/

i believe this is the first video of a convoy being attacked by the use of radar only in sh4, it has been proved that the point and shoot technique works visually, and with the hydrophones,
how we can add tha radars to the list of sensors that can engage and destroy targets.
the target was a 10 ship convoy, closing, four escorts and 6 merchants, i targetted two merchants with two torpedoes apiece, missing one target with both torpedoes,
but hitting the other and sinking it with both torpedoes, of which one was a dud. the kill was a modern passenger liner, MPL.
there is no narration in the film itself, just the crew voices, i have no mic, so ill have to explain here.
it was a night that was very dark, (pacific e), around 23:00, torpedoes were set to 12 ft, contact fuse. submarine at 39 ft depth.
the target destroyed was at a range of 1.09nm at torpedo impact, or 2000 yards.

mods that i think were essential in making this shot were:
pacific e 4, for the night to be so dark.
trigger maru camera. dat file. im running stock 1.5, but took alot from tm, the cam dat file lets me zoom into the radar screen, and breeze around the sub, just like the tm users do, works great in stock.
hi rez radar screen, great precision, very accurate!
small radar contacts.
if not for these mods, i dont know if the shot would be possible, but with them it is, so thanks to these modders

ok, the situation,
i have made radar contact with a convoy off the port side, range about 36000 yards, i followed the first step in the point and shoot technique by determining the convoys AOB,
by its relative movement, which would take it pass the port side of the submarine to the rear. it has a port AOB, so i reversed speed, and went hard to starboard, which would bring the convoy to the second step of the point and shoot
technique, which is to get the target on an eighty degree offset. i would attack this convoy on its left flank.
i turned until the destroyer at the point was on a bearing close to 80 degrees, once i got the point destroyer at or near 80 degrees, the convoys course was basically 270
relative to the submarine.
at about 16000 yds, i took a speed estimation, starting the watch, estimating the distance of 1000 yds on the radar screen, and watching the second ship in the first column, in about 4 minutes i stopped the clock, and plugged those figures into the TSD formula
4 minutes at 1000 yds, gave a speed of 7.4 knots. the firing bearing would be 13 degrees starboard.
now, all that was left was to let the convoy proceed on its course, taking it across the firing bearing of 13 degrees, and striking the targets at zero degrees.
shooting at the farthest ship in the first row across, last column, just to see if i could hit it with radar, and then the second farthest ship.
i dont know which one i hit, because after the fourth torpedo was fired, i went to normal dive, and listened in the hydrophones for the explosions.

the really nice thing about this tutorial, is that you can plainly see the ships, and the procedure of the point and shoot technique, how really simple it is, how lethal
it is also.
"it was easier in real life" said jurgen osten, this proves it i think
greyrider

[richardphat]

Cool video. If only it works with sh3 too:cry:

[Nisgeis]

Very nice Greyrider. It's a bit long with no commentary though :D . You should definately invest in a mic and that would add a lot of value to the vid.

By the way, have you tried the digital radar range readout mod? It allows you to get accurate ranges and bearings to help you plot on the nav map.

[Rockin Robbins]

Nisgeis, do you have the software to put a voice track on greyrider's video? He could script it out and you could do the recording to rerelease with commentary! Or he could send you the soundtrack and you could merge the two.:up: If we can get this in a unified package, I'd like to incorporate this into the Advanced TDC/PK thread. Great job greyrider!

[tale]

I watched the video from start to end and I think I got hypnotized by the endless radar beam turning round and round :doh:

As a fan of video tutorials and the topic of double targeting I'd like to see another production from yourself but this time edited to reduce time and increase action, I don't mind if there is no voice over as long as there is a text explaining the procedure; just a small advice if you don't mind

By the way the technique looks very promising :yep: I'll see if I can try it.

Hope to see more video tutorial from you greyrider

[greyrider]

thanks guys for the compliments, this was the first time i tried to make a movie, and the first time
i tried point and shoot with the radar, i didnt think i was going to publish that, but since it did work,
i wanted to share that with you, and not keep it to myself, i figured if you could see it, than you would know
it was possible, and you guys would start working with the radar too,
im going to get a microphone, maybe tomorrow, and redo point and shoot with radar, and add voice this time.
i watched that film, and even i learn something from it that i knew but forgot.
the ship that was sunk was at a range of 2000 yds, the one that was missed, may have been 1500 yds, when i shot at the 1500 yd ship,
it was very hard to see that ships pip because of the brightness of the antenna. but the ship that was hit, its pip was easily seen,
which tells me that the radars are better for targets that are at the longer ranges, 2000 plus yds and out.

it also occured to me that the relative movement of ships at close range, 2000 yds and in closer, seem to travel faster threw the firing bearing,
and at longer ranges, the speed of a longer range ship seem to go threw the firing bearing alittle slower, even tho both ships are traveling at the same speed.
so at longer ranges it seems you have the better chance of hitting the target with radar.
even with the hi res radar mod, it is hard to really know when a ship is on the firing bearing, so what i did was i had a 6 inch clear plastic ruler,
i put one end of the ruler over the center of the ppi, which represents the sub, and the other end on bearing 13, so that i had a clear line to judge
when the target was at the firing bearing, i put the ruler right on the monitor screen to do this, that works fine, but i would love to see a mod that could overlay
the 360 bearings lines over the radar screen.
so ill redo the point and shoot video, this time with voice, im also going to try to shoot from a longer range, like maybe 5000 yds, with another convoy.
i am running your radar range mod Nisgeis, that is another great mod, like animated fans and the sliderule mod,, you gave us something that wasnt there before, im grateful for that and your work,
i just hope the devs are watching the modders, and see what there doing, so that they can incorporate the work of the modders, and thier ideas, into the next version of sh,
because these are things that should always be in the subsim

[greyrider]

i have posted another silent video of the point and shoot method, by radar. there is no narration, i have tried for three days to make one narrated by me,
but i cant do it,
i guess im microphone shy.
if there is anyone who understands the point and shoot method, and wants to make a narrated video of an attack by radar, your more than welcomed to make one,
dont wait for me, it might never get done. nesgeis, rr, are you up to it?
i have made a mission, to teach the point and shoot radar method, and i have decided that the instuctions for the P+S method, can be radioed in, and following the radio instructions should get anyone interested comfortable
using P+S,R.
i will probably upload that to filefront sometime tomorrow night.

the mission in the film is from my fifth mission in my current campaign, a few days later than the first video i posted.

http://hosted.filefront.com/greyrider/

this one here is an hour long, played in real time, the target was a 22 ship warship task force, composed of at 11 escorts, the rest being capital ships, with fleet oiler and and or repair ship.
4 torpedoes were fired from the bow on bearing 340.5 degrees, and three torpedoes hit the battleship. range at torpedo impact was 2.23 nm, or 4534 yards.
the torpedo firing sequence begins at about the 53rd/54th minute of the film. this attack was conducted purely with radar, but the choice of the target was made with the hydrophones.
speed of the task force was estimated using nisgeis radar range mod, by locking the antenna on one of the contacts, and watching the range readout count down in sequence
before losing contact with that ship, and picking up another one at a different range.
200 yds at 12 seconds gave me 11 kts. bearing to fire was 340.5 degrees, torpedo speed was 31 kts, torpedo depth was 12 feet.

you can compare this attack to one in real life, the uss sealion's sinking of the battleship kongo with two torpedos.
the story is here:
http://www.combinedfleet.com/eclipkong.html

the audio tapes of the sealion of the actual attack conducted by radar here, there are 4 tapes.

tape one:http://www.hnsa.org/sound/sealion/sealionkongo1.htm
tape two:http://www.hnsa.org/sound/sealion/sealionkongo2.htm
tape three:http://www.hnsa.org/sound/sealion/sealionkongo3.htm
tape four:http://www.hnsa.org/sound/sealion/sealionkongo4.htm

theres really no doubt that Captain Eli T. Reich, commanding the sealion, was using the point and shoot technique, on this one.
i kinda like how rr names a tactic after a us captain, so if rr makes a tutorial, and i know he can because he understands the p+s method,
and wants to rename it, i wouldnt mind it being renamed to the Eli T. Reich method.

[Rockin Robbins]

Let me digest all this stuff and see what comes out..... Maybe that's not quite the right way to say that.:rotfl:Downloading now.