What makes Snap Casts (Interesting)
Posted: Sat Apr 07, 2018 2:46 am
Thought it would be better to start a new thread rather than attempting to divert the Upward Force from Drag “debate”.
Whenever I make or watch a snap cast I am intrigued by how much line movement bang is generated for the rod movement buck. Noticed it again watching Graeme's vid in the other thread. (Fellow SL member Andrew Connell and I talked about this yesterday when we got together for a cast and a chat so I know I’m not the only one who has noticed how really interesting snap casts are.)
Why is that so? Alternatively, what fundamental principles of (all) casting are being demonstrated?
My answer is that/the Straight Lines Rule. Two parts – a) cast in straight lines and b) with straight lines. Yeah, I know, that’s an ideal but it’s one worth aspiring to. It’s a relative universe in which Newtonian physics apply. Apologies for the repetition.
a) In a snap cast lots of line can be moved when the rod tip tows the fly line in two opposing directions but in both cases in nicely straight lines (relative to both the vertical and horizontal planes).
In both movements Force is being applied with vectoral simplicity or as I prefer, purity.
b) Line tension aids both loop propagation and vectoral purity. Snap casts don’t work at all without line tension.
Efficient casting requires vectoral purity and complete propagation of the loop.
Other than the Force(s) we apply, gravity and drag oppose us.
Cheers
Mark
Whenever I make or watch a snap cast I am intrigued by how much line movement bang is generated for the rod movement buck. Noticed it again watching Graeme's vid in the other thread. (Fellow SL member Andrew Connell and I talked about this yesterday when we got together for a cast and a chat so I know I’m not the only one who has noticed how really interesting snap casts are.)
Why is that so? Alternatively, what fundamental principles of (all) casting are being demonstrated?
My answer is that/the Straight Lines Rule. Two parts – a) cast in straight lines and b) with straight lines. Yeah, I know, that’s an ideal but it’s one worth aspiring to. It’s a relative universe in which Newtonian physics apply. Apologies for the repetition.
a) In a snap cast lots of line can be moved when the rod tip tows the fly line in two opposing directions but in both cases in nicely straight lines (relative to both the vertical and horizontal planes).
In both movements Force is being applied with vectoral simplicity or as I prefer, purity.
b) Line tension aids both loop propagation and vectoral purity. Snap casts don’t work at all without line tension.
Efficient casting requires vectoral purity and complete propagation of the loop.
Other than the Force(s) we apply, gravity and drag oppose us.
Cheers
Mark