Dutch rolls

Cub Driver wrote:

Gilmore, alone, also entered the fray but was quickly latched onto by a Zero
he
shook off with a series of Dutch rolls

What is a Dutch roll in this context? It's usually applied to
oscillations that can't be damped out, as in the Northrop YB-49 Flying
Wing bomber. I can't visualize it as a deliberate maneuver in combat.

From Civil Aeronautics Bulletin No.23, September, 1941:

"Constant-heading slips are sometimes mistakenly called Dutch rolls, but they
are not the same as the natural aerodynamic Dutch roll oscillations discussed
in section 10.6.1. Both involve slipping to one side and then the other, like a
Dutch kid on skates, making a series of slips (left, right, left, right)
without much change in ``direction'', depending on what you mean by
``direction''. But note the differences:

Natural aerodynamic Dutch roll oscillations change the heading, with
more-or-less unchanging direction of motion.
Constant-heading slips change the direction of motion, with unchanging
heading."





Chris Mark