Are these pictures taken when the scope is locked on the target? The observed halve length isn't allways the same on the bow as on the stern. It could be that the 'lock point' on SH5 models are not completely dead center. Therefore I would rather use the full observed length of the target than just one side of the line, and base the scaling on that.

Yes "follow target" is on. I had noticed this and am working on
iiii|iiiii =4.5 clicks. So far it has worked well with my latest tests with no more than 5deg out. I need to test more ships at diff ranges to be sure.

The Uzo test was on a ship measured on map and RM as:-

Range = 2600m
Mastheight=27.1
ShipLength=147m
AOB=30deg


Pic1 - Find Range

Look at mast on ship and read clicks - set inside middle ring to 4.1 at the top marker.
Read mastheight from outer ring.
Read range from outside middle ring.

http://img510.imageshack.us/img510/9967/pic1x.png

Pic2 Find AOB

Turn middle ring until range lines up with ship lenght on outside ring.
Count clicks that half the ship takes up and read the clicks on the inside middle ring. They line up with AOB in inside ring.

http://img205.imageshack.us/img205/996/pic2f.png

This is a very important calibration exercise you are doing, trevally. I'm surprised it went so long with the wrong reticule.

When next I am in orkney, I shall have to look you up and we can have a beer and talk u-boats!:()1:

Yes I am too. I guess people could not get it to work and could not understand why. just like me in post 1:oops:
I thought I knew how it worked until I tried to explain it to someone:D

Yes that would be great - the guys at work are fed up with my u-boat talk:arrgh!:

Do you think I should try and nail down that last 2deg error with the horizontal ones - or mabye creat more test missions from more ranges and angles:06:

The Red Marker.


Start timing as ship touches the centre scope line.
Do not move scope.
You must be at 0 knots

Pic1
http://img703.imageshack.us/img703/6924/pic1s.png

Stop timing as ship passes

Pic2
http://img151.imageshack.us/img151/2865/pic2l.png

Move the time it took in seconds (36) middle ring outside - to the ship lenght (147m) on the outside ring.
Read speed on middle inside ring at the red marker:salute:

Pic3
http://img813.imageshack.us/img813/6349/pic3l.png

Good work, gents...painstaking work, I know, but it's greatly appreciated. Do you know what your scope magnification settings are? Standard TDW UI 1x/4x or are you using Arclight's increase to 1.5x/6x?

Thanks Laconic:up:

It was using Arclight's 1.5x/6x

Ship scaling is wrong in SH5. If you read the .cfg files, you will see that a Liberty class is longer than a mighty tanker:

[Unit]
ClassName=KL/LL (aka Liberty cargo))
...
Length=147

[Unit]
ClassName=T3Cimmaron
....
Length=139.6

is this pertinent to the problem in hand, though?

Dunno, was just a heads up regarding the wrong ship scaling in SH5, so dont trust in the readings from the recon manual. I'm not using raofb or any UI mod, only stadimeter and chrono.. I love 2 keep things simple and effective.

well the raobf is simple and effective, once calibrated correctly, and once u know how to use it.

but importantly, are you saying the recog manual is inaccurate? ifso, have no major mods addressed this?

I will test this.

Yep, I figured this out a long time ago when I was practicing this simple manual tdc tutorial, the "ships length divided by how many seconds it took to pass the scope vertical line" method. Looking in the recon manual I realized that the ships lengths are very wrong. So this method will not work in SH5, better results with the 3.15 rule if your game is not lagging. As far as I know, there is no mod/fix for the wrong scaling.