How does the stadimeter work ?
 

Hello fellow Captains

Can anybody post an image of the stadimeter and explain how i can see the range to a ship after i have sent the masthight from the recognition manual to the tdc. It is proberbly me who doesn´t know what to look for. When i do this in my training mission i get a range of approx. 300 meters, but when er messure on my navigation chart it is almost 2500 meters, what am i doing wrong.

Nissum

http://www.fleetsubmarine.com/graphics/scope02.jpg

That's the image you want to get a good range to the target. The range readout is shown in the TDC.

I don't know what game setting your playing with but is sounds like you havent selected any vessel from the recognition manual.

First of all, select the right vessel in your recognition manual (when at periscope station it's the one next to the periscope depth icon... I think, the book).

Depending on the type of vessel (being a war ship or a merchant) select the appropriate book, turn the pages and select the vessel you think our looking at.
Press the check mark and you'll see the class name of the vessel on top of the TDC, now can you measure distance by way of LukeFF's drawing.. might need some AA adjustment on that drawing Luke :D.

You can check the distance measured on the attack map when you press the PK (being the red button under the torpedo depth setting) scroll out and move the chart to the vessel then scroll back in you'll see a black marker line over the dot representing the vessel. If it's off you're just going to have to redo the measurement.

Go to this tread and DL the video tutorials for clearer explanation on how to get bearing and speed.
http://www.subsim.com/radioroom/showthread.php?t=108931

Just to expand on the excellent graphic....

You want to get the bottom of the "Ghost" ship to touch the top of the highest mast on the "real" ship.

JCC

Man i am daft
 

I found out what you mean. Ofcourse, the ghostship in periscope comes from the stadimeter. Thats why i can´t manualy dial it. I was reading "Hitmans" excelent "manual targeting" instructions when it hit me. I have been trying to turn the stadimeter dial for almost 24 hours, but now i know.

Thanks guys

By the way, i seem to have read that the mast hights is way of in the recognition manual. Is there a mod that fixes this, maybe one that put the length of the ship in it too.

Nissum:lol:

Trigger Maru fixes it all (I think). I haven't had any manual solutions fouled up since using this excellent modpack, besides my own idiocies ofcourse:damn: .

Anyone knows if there is any reason for this tricky "ghost ship"? Why did they need the "ghost" for? They couldn't use a simple line like the German apparently had if I refer to SH3?

All this "ghost" stuff makes stadimeter work a little bit blurry and harder...

The german Fire Control proceess did not acually work as it is represented in the game. It was simpliifed for gameplay purposes.

The SHIV Stadimeter is an accurate representation of that part of the US TDC.

It operates on simple tigonometry. If you know the actual height of the mast, and you know the appearance of how high it is from your point of view, the distance to the target is relatively simple to figure out.

JCC

I havent tried it but my understanding is you can use any part of the target for which you know the height. The origianal recognition manuals show the height of the funnel which may be easier to use than the mast because its easier to see in poor visibility. If I can ever run SHIV without crashes long enough to test it I will do so. Joe S

Welcome to SUBSIM :up: Nissum


RDP

Far out man
 

Hello

Have just seen your Uberboot video on youtube. Now thats what i call firepower.

Nissum

In SH4 you can also set manually the wished heigth in the circular dial by dragging the transparent triangle and not use the recognition manual at all. I do it a lot to estimate distance based on funnels, bridge and kingposts instead of using mast :up: The heigth of those parts I calculate using rules of thumb: 8 feet for each deck, then use the decks as yardstick to approach the bridge or funnel heigth. Works usually well :yep:

Hitman hits a home run!
 

Awesome. Without Subsim, I never would have learned that!:up:

I'm wondering how you do that..
When I don't select the appropriate vessel I can only get the dial to go as far as 1500yrds.

And even then when I've chosen the vessel its quite hard due to the 150yrds or so difference.

For example when you want to set the range at 2000yrds (that being your estimate of distance to the vessel) on the TDC the range will be less.. about 150yrds less... it will show 18xx and not the setting you've entered.

At least that's what I get, I always have to reset the dial one to two clicks further for it to be right.

I think you need to have the ship locked (Even if not identified ) for the stadimeter to work. See this example:

I moved manually the transparent triangle with the red mark (Which indicates estimated mast or whatever heigth) to the "50" feet mark, as that is my estimate of heigth for the funnel of a large cargo like the one I see here. Then, it is just a matter of using the stadimeter to align waterline with funnel, and there you go...opposite the red mark of the triangle you can see the resulting range: Nearly 11000 yards :smug: (I have the horizon set at 20000 yards)

http://aycu13.webshots.com/image/271...8695726_rs.jpg