Contact Intercept

[Captain Nemo]

I find the easiest and fastest way to intercept a contacts course is by doing the following:

1. Draw a line from the contact in the direction that it is heading.
2. Ask the navigator to plot a waypoint that intersects somewhere along the line (track) that you have drawn showing the contacts course.
3. See how long it will take your u-boat to reach that waypoint (intersection) and from this work out how far the contact would have travelled in this time. From this ajust your course (waypoint) accordingly.

Example: Contact is travelling east at 6 knots. At full speed my u-boat will take 2 hours to reach the contacts track. In this time the contact will have travelled just over 22 kilometres. From this decide if you need to move your waypoint along the contacts track closer to the original contacts position or further away to make the intercept.

Hope all that makes sense.

Nemo