12-1-0 Delivery line

[O.B.Left]

Ok fog not lifted yet, my fog.... in the drive loading basic pattern prescribed in 12-1-0 the plane line is 10-5-A, now in 2-J-3-B the explanation of the Angle of Approach after the first sentence "This just arbitrarily requires a 10-5-E Closed Plane Line.....". What do i do with the 10-5-A plane line? Still push cross line?



Thanks.

Im thinking the Square -Square Plane Line of 10-5-A is needed to determine the Low Point and Impact Point through which the straight line Angle of Approach runs. Once the Angle of Approach is determined the Basic Plane Line is disregarded.

But I could be wrong.