| Bat | Bird | Bat condition: | |
| Camber | Hi | Lo | Bat wings are cambered plates |
| Angle of Attack | Hi | Lo | Bats maximize Lift |
| Wing Loading | Lo | Hi | Bat Weight / Surface ratio ~ 1/4 of bird |
| Wing Aspect Ratio | Lo | Hi | Bat Length / Breadth ratio: "stubby" |
| Wing Beat Rate | Hi | Lo | Lift >> Thrust |
| Speed | Lo | Hi | Maneuverability >> Speed |
Camber: Degree of curvature
of
the
wing, which acts as an airfoil.
Angle of Attack: Angle at
which
wing is presented to airstream, measured from
horizontal.
Thrust: Forward motion
produced
by wing beat, which generates an airstream over wing.
Lift: Upward motion, a resultant
vector
from
a faster airstream moving above an airfoil versus a
slower
airstream moving below.
Lift
increases with angle of attack, and is opposed by drag
which
disrupts laminar flow.