TMA - Range Rate and Target Zig

[Pisces]

I don't see how you can determine or calculate range rate between you and the target if you do not yet know his speed and course (you mean the part on page 5 and 6, right?). You would first need to have a reasonably accurate track on him to be able to calculate how quickly you close. Besides, the game cannot show or measure the closure rate (like via doppler frequency change.) Though I understand the FFG has limmited capability on those small passive waterfal screens.