SUBSIM Radio Room Forums - View Single Post - Help with RAOBF dis. My measurements are off.

nazaka · 08-31-21, 01:50 PM

The main source of error between the measured distance and the actual distance of the target vessel is the inaccuracy of the mast heights.
Same for the AOB measurement, the lengths are sometimes very far from reality.

To verify this, I did a very simple test to get the real values of the ships: ships located at key sites (0-45-90-135-180-225-270-315), at a distance of 1000m and with an exact AOB angle of 90°.

And I checked the really interesting ships. And I got some surprises.

A nice example was the DALE:
_ on the identification booklet it was indicated: length(139.6m), mast height(29.7)
_ during my test: measured ship length (17.9 ticks, or 179m) and measured height (10.9 ticks or 27.2m)

Difficult to have measurements close to the real with so many differences.

08-31-21, 01:50 PM	#20
nazaka A-ganger Join Date: Sep 2014 Posts: 75 Downloads: 51 Uploads: 0	The main source of error between the measured distance and the actual distance of the target vessel is the inaccuracy of the mast heights. Same for the AOB measurement, the lengths are sometimes very far from reality. To verify this, I did a very simple test to get the real values of the ships: ships located at key sites (0-45-90-135-180-225-270-315), at a distance of 1000m and with an exact AOB angle of 90°. And I checked the really interesting ships. And I got some surprises. A nice example was the DALE: _ on the identification booklet it was indicated: length(139.6m), mast height(29.7) _ during my test: measured ship length (17.9 ticks, or 179m) and measured height (10.9 ticks or 27.2m) Difficult to have measurements close to the real with so many differences.