Dividing the Flyer's Power for Straight or Circular Flight
Power split among four limbs: equal use gives steady flight, unequal gives a curved course
The note reasons that when the mover of the flying creature has power divisible into four among its four principal serving members, it can use them equally or unequally as the various motions require. Moved all equally, the flyer keeps a steady, regular motion; moved unequally, as in continuous proportion, it makes a circular motion. Below the text are sketches of radiating lines and small pivot points illustrating these paths of motion.
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Four limbs, equal or unequal, steer the flight
When the mover of the flying creature has power divisible into four among its four principal serving members, it can employ them equally or unequally according to the various motions needed. All moved equally, the flyer holds a steady motion; moved unequally, as in continuous proportion, it makes a circular motion.
Diagrams of straight and circular paths
The lower part of the sheet shows sets of radiating lines issuing from small pivot points, illustrating the straight and turning courses that follow from equal or unequal use of the four members.