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GoldenRivet · 12-26-08, 06:31 PM

i believe the process involved counting the vertical tick marks on the UZO/Scope cross hairs - each representing say - a degree. then comparing that to the mast height of the target as indicated in the recognition manual. given a specific mathematical formula of a triangle given known variables you could estimate the range failry accurately. you could do the math on paper... but i would say - like in aviation - a lot of the mathematics was done via "whiz wheel" / "slide rule" for a quick estimate.

but - even with good math there would be a margin of error

range however as far as im aware was only needed in a solution to determine the running time to impact.

otherwise i dont think it was so important as speed and AOB

Edit... from what i have read and been told, these U-Boats had a range calculating stadimeter built in. all you had to do was set one image atop the other and read the range estimate from a dial.

thats it - its expected to have a margin of error... the only thing range was used for was determining how long it would take the torp to get to the target.

crews understood there was error involved.

when they estimated 40 seconds to target they knew it might actually be 47 seconds or 35 seconds etc

12-26-08, 06:31 PM	#2
GoldenRivet Subsim Aviator Join Date: Mar 2007 Location: Texas Posts: 8,726 Downloads: 146 Uploads: 0	i believe the process involved counting the vertical tick marks on the UZO/Scope cross hairs - each representing say - a degree. then comparing that to the mast height of the target as indicated in the recognition manual. given a specific mathematical formula of a triangle given known variables you could estimate the range failry accurately. you could do the math on paper... but i would say - like in aviation - a lot of the mathematics was done via "whiz wheel" / "slide rule" for a quick estimate. but - even with good math there would be a margin of error range however as far as im aware was only needed in a solution to determine the running time to impact. otherwise i dont think it was so important as speed and AOB Edit... from what i have read and been told, these U-Boats had a range calculating stadimeter built in. all you had to do was set one image atop the other and read the range estimate from a dial. thats it - its expected to have a margin of error... the only thing range was used for was determining how long it would take the torp to get to the target. crews understood there was error involved. when they estimated 40 seconds to target they knew it might actually be 47 seconds or 35 seconds etc __________________ Last edited by GoldenRivet; 12-26-08 at 06:42 PM.