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jimmbbo · 05-29-20, 01:07 PM

Welcome aboard, Kaleun!

Along the lines of the previous posts,

The red rectangles are CINCPAC estimated positions tagged with a time of the posting and the target's estimated speed (slow, medium, fast) and direction shown by the "tail" of the symbol indicating the vessel's wake.
Since the locations are estimated, the sonar bearing line will not appear until the target is in sonar range, ~10ish miles and they will be visible around 3ish miles.
If you place your boat along the target's plotted course line, you MAY be able to intercept it. I estimate the target's likely intercept point on the anticipated course line by
- Noting the time since the observation was posted and figuring a 10 knot speed to estimate where the target is now. (10 kt makes the math easy - 1.5 hours = 150 miles. I add a few miles' fudge factor for a "fast" target)
- I estimate my time enroute to the intercept point and calculate the target's probable progress in that time. When I arrive in the vicinity, I position the boat ~10ish miles "downstream" of that location and wait... and wait... and wait...
- My experience has been that IF the target actually appears, it is often at some distance from the planned intercept location.

Good hunting!!

05-29-20, 01:07 PM	#5
jimmbbo Run silent, run deep Join Date: Jun 2016 Posts: 225 Downloads: 59 Uploads: 0	Welcome aboard, Kaleun! Along the lines of the previous posts, The red rectangles are CINCPAC estimated positions tagged with a time of the posting and the target's estimated speed (slow, medium, fast) and direction shown by the "tail" of the symbol indicating the vessel's wake. Since the locations are estimated, the sonar bearing line will not appear until the target is in sonar range, ~10ish miles and they will be visible around 3ish miles. If you place your boat along the target's plotted course line, you MAY be able to intercept it. I estimate the target's likely intercept point on the anticipated course line by Noting the time since the observation was posted and figuring a 10 knot speed to estimate where the target is now. (10 kt makes the math easy - 1.5 hours = 150 miles. I add a few miles' fudge factor for a "fast" target) I estimate my time enroute to the intercept point and calculate the target's probable progress in that time. When I arrive in the vicinity, I position the boat ~10ish miles "downstream" of that location and wait... and wait... and wait... My experience has been that IF the target actually appears, it is often at some distance from the planned intercept location. Good hunting!!