Quote:
Originally Posted by Tshark
Using the three minute tracking method to obtain target speed I seem to consistently over estimate speed by 2 knots. This has occurred in quick missions against warships and career against merchants. Any suggestions on what I am doing wrong?
Thanks
|
Okay, tshark, we'll do the checklist and see if you left anything off.
- Are you using Imperial measurements? The 3 minute rule works for yards, not meters. However if you were measuring the distance in meters you would get a smaller number and underestimate the speed, so that isn't happening here.
- Are you using radar to plot your positions. It is by far most accurate. Sonar is a good second bet. If you are using the stadimeter outside of 2500 yards all bets are off and your speed has to be considered a beta version--maybe an alpha version of speed. With stadimeter get that last estimate of speed as close to the target as you can.
- Using the pencil on the nav map to X the two positions, then using the compass to measure the distance? The number of hundred yards the target ran in the three minutes is the speed in knots. 900 yards would mean 9 knots.
Then there is the all-present monkey wrench. How do you know your speed measurement is 2 knots too fast? The answer to that question could lead us to other parts of your targeting procedure.