Calculating range and speed

Frank0001 · 07-12-08, 07:54 PM

Fellow kaleuns,

I've recently been struck with awe after missing a torpedo aimed at a single merchant going slow, at perfect weather and a perfect attack position.

It seemed I horribly miscalculated the speed of the bugger.
My question now is, what is your advice to gain the most accurate speed calculation?

Thank you in advance

Laufen zum Ziel · 07-12-08, 09:03 PM

If you are playing GWX 2 thereis a built in nomograph (sp) where you pull it up
from the bottom of the map chart. You mark your first sighting on the map
with the marker tool then wait a while and then make a second mark where the target is now.
Then use your ruller and draw a line throug min-km-knts on the
graph that will give you speed.

The below link has a print out of the graph that you can alsso use. If your
not playing GWX there is a mod available. GWX also has a pull down speed chart from the map screen.

http://i262.photobucket.com/albums/i...g?t=1215914530

GoldenRivet · 07-12-08, 09:13 PM

watch the target through the periscope while your speed is as close as possible to zero.

Id the target

point the periscope at a point slightly ahead of the target ship.

when the front of the target ship touches the vertical cross hair in the periscope start your clock and do not move the periscope.

when the back of the target ship crosses the vertical cross hair in the periscope stop your clock.

find the target ship's lenght in the recognition manual..

length of ship divided by time in seconds multiplied times 1.94 = speed in knots

round up to the nearest knot. for example if your calculation revealed a speed of 4.12 knots... call it 5 knots.

thats a quick "on the fly" method of calculating speed. and its pretty darned accurate.

for convoys, just "clock" the nearest ship, and its a safe bet that every ship in the convoy is moving at the same speed

Frank0001 · 07-13-08, 08:50 AM

Ooh thank you gentlemen, I haven't thought of those ways yet!
I was using the 'lock' function, and press the timer, but that seems to be fairly inaccurate at times.

I'll try your suggestions, thanks again!

Badger Finn · 07-13-08, 11:20 PM

become competent with the OLC GUI and its 3 quick actions

speed distance AOB

once speed has been determined using the OLC GUI u can update (manually) the calcs for AOB and Distance in super quick time..sec's

its pin point acurate...

UnderseaLcpl · 07-14-08, 12:48 AM

Iron sights and guesswork FTW.

07-12-08, 07:54 PM	#1
Frank0001 Chief Join Date: Apr 2008 Posts: 317 Downloads: 16 Uploads: 0	Calculating range and speed Fellow kaleuns, I've recently been struck with awe after missing a torpedo aimed at a single merchant going slow, at perfect weather and a perfect attack position. It seemed I horribly miscalculated the speed of the bugger. My question now is, what is your advice to gain the most accurate speed calculation? Thank you in advance __________________ Snipers of the Seas One eel - one Kill

07-12-08, 09:03 PM	#2
Laufen zum Ziel Eternal Patrol Join Date: Jan 2008 Location: Hiding on the bottom Posts: 1,783 Downloads: 853 Uploads: 457	If you are playing GWX 2 thereis a built in nomograph (sp) where you pull it up from the bottom of the map chart. You mark your first sighting on the map with the marker tool then wait a while and then make a second mark where the target is now. Then use your ruller and draw a line throug min-km-knts on the graph that will give you speed. The below link has a print out of the graph that you can alsso use. If your not playing GWX there is a mod available. GWX also has a pull down speed chart from the map screen. http://i262.photobucket.com/albums/i...g?t=1215914530 __________________ RIP Laufen zum Ziel

07-12-08, 09:13 PM	#3
GoldenRivet Subsim Aviator Join Date: Mar 2007 Location: Texas Posts: 8,726 Downloads: 146 Uploads: 0	watch the target through the periscope while your speed is as close as possible to zero. Id the target point the periscope at a point slightly ahead of the target ship. when the front of the target ship touches the vertical cross hair in the periscope start your clock and do not move the periscope. when the back of the target ship crosses the vertical cross hair in the periscope stop your clock. find the target ship's lenght in the recognition manual.. length of ship divided by time in seconds multiplied times 1.94 = speed in knots round up to the nearest knot. for example if your calculation revealed a speed of 4.12 knots... call it 5 knots. thats a quick "on the fly" method of calculating speed. and its pretty darned accurate. for convoys, just "clock" the nearest ship, and its a safe bet that every ship in the convoy is moving at the same speed __________________

07-13-08, 08:50 AM	#4
Frank0001 Chief Join Date: Apr 2008 Posts: 317 Downloads: 16 Uploads: 0	Ooh thank you gentlemen, I haven't thought of those ways yet! I was using the 'lock' function, and press the timer, but that seems to be fairly inaccurate at times. I'll try your suggestions, thanks again! __________________ Snipers of the Seas One eel - one Kill

07-13-08, 11:20 PM	#5
Badger Finn Watch Officer Join Date: Jun 2006 Posts: 332 Downloads: 30 Uploads: 0	become competent with the OLC GUI and its 3 quick actions speed distance AOB once speed has been determined using the OLC GUI u can update (manually) the calcs for AOB and Distance in super quick time..sec's its pin point acurate... __________________ http://www.gamefront.com/files/user/BadgerFinn

07-14-08, 12:48 AM	#6
UnderseaLcpl Silent Hunter Join Date: May 2008 Location: Storming the beaches! Posts: 4,254 Downloads: 0 Uploads: 0	Iron sights and guesswork FTW. __________________ I stole this sig from Task Force