Paul Arden wrote: ↑Wed Aug 19, 2020 5:50 pm
I suspect there are a number of reasons. I would expect the overriding one to be aerodynamics.
Hi Paul,
If we look at the case where we see the most extreme loop morph - the '170' backcast, then I very much doubt the overriding reason is aerodynamic. If we all take time to study the well known film of Anna Hedman in competition - we can observe that the rod leg is placed on the ground during the cast, here it obviously has zero velocity and therefore zero interaction with moving air (unless there's a hurricane blowing, which there clearly isn't). Yet the line then suddenly jumps up into the air.
As such, I'd say the overiding reason behind loop morph is fly-leg momentum pulling the rod-leg taut.
Aerodynamics will obviously have a big effect also.
Cheers, James