Casting
http://neophyteflyfishingbasics.com
- In
casting alone, the law of conservation of
energy and Newton's third law are shown. The
law of conservation of energy states that
the total energy of an isolated system is a
constant (Knight, 295). Since energy
can never be destroyed, casting is simply
the transfer of energy. Fly line is weighted
so that when your body moves the rod tip
backward or forward, the line pulls in the
opposite direction, which demonstrates
Newton's third law. When the rod is bent due
to its flexibility, energy is stored as
potential energy. We often refer to
this as the rod being “loaded”. The
potential energy is then transferred to
kinetic energy (movement). This process
happens on both the back and forward cast (AIP, 2011).
- The
more that the rod tip bends, the more energy
gets stored. The more energy that gets
stored, the faster the line will move. This
allows further and more accurate
casts. Fisherman achieve this extra
bending by doing whats called a “double
haul”. Double hauling is pulling the line
sharply with your second hand while the
casting hand moves the rod forward or back.
This extra bending of the rod increases the
potential energy.
For more information on
casting visit http://howtoflyfish.orvis.com/video-lessons/13-fly-casting
|
