In explaining the performance of eights-on-pylons, the
term "wingtip" is frequently considered as being synonymous
with the proper reference line, or pivot
point on the airplane. This interpretation is not
always correct. High-wing, low-wing, sweptwing, and
tapered wing airplanes, as well as those with tandem or

side-by-side seating, will all present different angles from
the pilot's eye to the wingtip. [Figure 6-11] Therefore, in
the correct performance of eights-on-pylons, as in other
maneuvers requiring a lateral reference, the pilot should
use a sighting reference line that, from eye level, parallels
the lateral axis of the airplane.

Figure 6-11. Line of sight.