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Old 09-21-15, 12:49 AM   #9
makman94
Hellas
 
Join Date: Jul 2008
Posts: 2,325
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Quote:
Originally Posted by GOREUNCLE View Post
Hi Markman.

I've been working with your mission and with a modified version I've made, the results I'm getting are mixed. The MaGui values work in some cases (long range), but the shooting bearings they provide are too wide in other cases (medium-close range), making the torpedoes miss.

My custom values worked in some cases and missed in some others.
So I started looking into stuff that could explain this. At first I thought this had to be related to range, target's lenght, etc. But today I've discovered something disturbing: the ruler tool is broken.

I've discovered that the distance values given by the ruler tool can't be trusted, here's why:


If I can't get reliable distance data, I can't calculate the target's speed using the 3:14 method, thus, my shooting bearings will be wrong, regardless of the "x" values I decide to use.

Tomorrow I'll keep performing tests and try to figure out what's going on with the ruler tool...

EDIT: Ok, I just realized that the ruler tool actually rounds the values up. The distance shown above is actually 350 meters, now it all makes sense.
The first line is actually 350 meters long.
The line configuration below it consists of two 150 meter lines and one 50 meter line.
The last line configuration is made of 7 lines of 50 meters. All the line configurations measure a total of 350.

So every map square equals 50 meters (at full zoom), put two map squares together and that's 100 meters... Now I can finally get accurate distance/range readings without even having to use the ruler tool, XD.
Great! Now that I know this, I can perform further tests with accurate speed readings.
hello GOREUNCLE,

thats why i am telling you to make your tests at testing missions where you are sure of the exact target's course and speed.so ,use the single mission that i sent you ,create in there your senarios by changing target's speed,course and uboat's course and make your tests.Once you are sure for target's speed and course,you move on to:

The parallax correction is getting ''wilder'' as closer the target is and as bigger the gyroangle is.
So, avoid using this method for close targets or with extreme gyros (>1500m and +-20° gyroangles will be fine).
The shooting tables are 100% correct and these are the tables that you must use in any case.

for accurate distance measurements, the MaGui is using a very very usefull tool, the Malloy Ruler.
Search into the documents for the tools of MaGui and study the tool. with Malloy Ruler you can get 100% accurate distance measurements at any zoom level of map. for start ,practice yourself with the tool at the 0-500m of map scale


all the best
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