Tony....
After
studying Grunde's video of Mathias Lilleheim's "supersonic" backcast, my
thoughts are these:
# He's
using a full flex rod.
#
Unloading occurs (apparently) just prior to RSP (rod straight position) as
acceleration ceased.
#
Following RSP and the start of loop formation, the rod tip goes into great
counterflex so that the tip almost touches the floor !
#
Rebound is commensurate with the counterflex, so it is
extreme.
Without seeing a great deal more of the line, I can't
be sure. I think, however, that the trajectory of "up and back" was
established prior to counterflex. Counterflex temporarily pulled the rod
leg of the loop down. This began to rise a bit with rebound, but then
continued to rise as the momentum of the traveling loop pulled the
counterflexion deformity of the rod leg back up in the direction of the
trajectory. (What Paul Arden calls, "sucking it up".)
This
is in keeping with the dictum: What happens
prior to RSP affects the fly
leg of the loop. What happens after
RSP affects the rod leg of the
loop.
NEAT
STUFF !!!!!!
Gordy
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Let's
see how some of you including Walter Simberski look at this apparent defiance of
gravity. Do you think that "lift" is responsible for this amount of
levitation ? G.
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