SUBSIM Radio Room Forums - View Single Post - I need help determining target course based on visual contact

vanjast · 03-10-23, 05:48 PM

Do a bit of visual imagination...

Two absolute items that you know
- your course
- Scope bearing of the target.

and approximate..
- AOB of the target

With practise you can determine the Angle On Bow (AOB) of the target.
IOW, the bearing that the target would see you.

A simple thought experiment.

- you're traveling North (000 degrees)
- the target is at a bearing of 315 (45 degrees port/left)
- The AOB is 45 degrees (starboard/right)

You target course is your course + (Bearing + AOB) = 000 + 045 + 045 = 90 (East).
With a bit of practise in 'compass' mental gymnastics is becomes as easy as pie.

03-10-23, 05:48 PM	#4
vanjast Sea Lord Join Date: Jun 2006 Location: Somewhere else now Posts: 1,660 Downloads: 783 Uploads: 4	Do a bit of visual imagination... Two absolute items that you know - your course - Scope bearing of the target. and approximate.. - AOB of the target With practise you can determine the Angle On Bow (AOB) of the target. IOW, the bearing that the target would see you. A simple thought experiment. - you're traveling North (000 degrees) - the target is at a bearing of 315 (45 degrees port/left) - The AOB is 45 degrees (starboard/right) You target course is your course + (Bearing + AOB) = 000 + 045 + 045 = 90 (East). With a bit of practise in 'compass' mental gymnastics is becomes as easy as pie.