Quote:
Originally Posted by Sjizzle
take a look on this tutorial
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The Tutorial is really good but he is overcomplicating the process.
You don't have to do all the divide by /100 * 3.33 thing which comes up in part II.
Simple as it is you need to draw 2 circles one for the convoy speed and one for your own sub intercept speed. Just ensure to take the same scale unit.
i.e if the convoy is going at 10 knots/hour draw the circle for the convoy speed with a radius of 1000m or 10 km. You want to intercept the convoy with 15 knots/hour draw the second circle at respectivily with a radius of 1500m or 15 km.
Trigonometric you'll get the same intercept course.
All in all not more than drawing
1. Line 1 = Bearing from uboat to target
2. Line 2 = Target course
3. Circle 1 = Target speed (center at target)
4. Circle 2 = own speed (center on intersection Circle1 with Line2)
5. Intercept course = Intersection Line 2 / Circle2 with Line1 / Circle1