Practice casting question

[Aaron Christensen]

An excellent thread and a great way to learn.  I try to understand the physics of what is taking place.  Curious if some of the CCIs/MCIs or smarter (than me) people can take a stab at explaining the physics of the snap.  

My thought is that the leader is snapping due to line speed and the rapid change in direction when the rod is not properly loaded.  Having some yarn on the leader will slow the leader so the snap does not occur, but the lack of yarn is not the reason WHY the snap is occurring.  On the other hand, a fully loaded rod followed by a proper forward cast will “speed up to a stop,” so the leader at the end of the back cast is theoretically stopped or straight (or at least for practical purposes slowed).  Any other thoughts out there on the physics of the phenomena?

Another interesting point is that the snap is always on the back cast, which points to an issue of improper form, at least in my mind.

[andrew connell]

Aaron, usually the snap only happens on the back cast due to the unseen unfurling of the loop and the casters poor timing of the forward cast commencing. The reason most people don’t snap/crack at the start of the back cast is because they can see when to start the back cast 🙂 I’m sure you understand starting to move the rod leg of the loop forward before the fly leg has unfurled will increase line speed (just like a haul).

You can still get a dull sound with the yarn on (get an experienced caster to really throw a grossly overpowered curve cast) but basicly I think the yarn diffuses the energy 😮

Someone mentioned that the crack is a good casting aid to improve your cast timing, looking is even better.

[Jon Conner]

The snap is from coming forward before the line staightens on the backcast, pure and simple, it’s a timing problem.
JC

[Author]

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