Four-point Roll

In this roll to the right, the pilot
pauses at every 90 degrees of rotation.

The chase view is nice.
. f16.mdl
0.00 20.00 0.00 -0.7070 0.0000 0.0000 0.7070
0.00 20.00 19.99 -0.7070 0.0000 0.0000 0.7070
0.00 20.00 39.99 -0.7070 0.0000 0.0000 0.7070
0.00 20.00 59.98 -0.6512 -0.2753 0.2753 0.6512
0.00 20.00 79.98 -0.5051 -0.4947 0.4947 0.5051
0.00 20.00 99.97 -0.5051 -0.4947 0.4947 0.5051
0.00 20.00 119.96 -0.2726 -0.6523 0.6523 0.2726
0.00 20.00 139.96 0.0030 -0.7070 0.7070 -0.0030
0.00 20.00 159.95 0.0030 -0.7070 0.7070 -0.0030
0.00 20.00 179.95 0.2781 -0.6500 0.6500 -0.2781
0.00 20.00 199.94 0.4968 -0.5030 0.5030 -0.4968
0.00 20.00 219.93 0.4968 -0.5030 0.5030 -0.4968
0.00 20.00 239.93 0.6535 -0.2698 0.2698 -0.6535
0.00 20.00 259.92 0.7070 0.0059 -0.0059 -0.7070
0.00 20.00 279.92 0.7070 0.0059 -0.0059 -0.7070
0.00 20.00 299.91 0.7070 0.0059 -0.0059 -0.7070
0.00 20.00 319.90 0.7070 0.0059 -0.0059 -0.7070
0.00 20.00 339.90 0.7070 0.0059 -0.0059 -0.7070
~-42.5397 -0.8291 0.1200 -0.5461 36.7143 0.0000 0.9767 0.2146 -63.0793 0.5591 0.1779 -0.8098