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Search found 1657 matches

by James9118
Thu Nov 16, 2023 12:03 pm
Forum: Flycasting Physics
Topic: Loop Dynamics
Replies: 171
Views: 5361

Re: Loop Dynamics

Paul Arden wrote: Thu Nov 16, 2023 11:55 am So that means infinity speed isn’t going to happen. What would happen if infinity speed was the outcome?

Cheers, Paul
The off-the-shoulder over-powered curve cast that a lot of people struggle with would become a doddle :p
by James9118
Thu Nov 16, 2023 11:24 am
Forum: Flycasting Physics
Topic: Loop Dynamics
Replies: 171
Views: 5361

Re: Loop Dynamics

I'm curious. I have very little familiarity with losses of that nature. I expect that the majority of the losses would occur when the line first bends (enters the loop) and when it straightens (leaves the loop). Have you got any information that would help bring me up to speed on that? Thanks! Paul...
by James9118
Tue Nov 14, 2023 12:44 pm
Forum: Flycasting Physics
Topic: Loop Dynamics
Replies: 171
Views: 5361

Re: Loop Dynamics

Pearson's model.JPG Pearson’s model is similar to Gatti Bono's analytical model. The graphic illustrates the fly leg speed history in no air drag conditions for the level line you described. The calculation is stopped as the fly leg length reaches zero (there is only the loop left). Merlin I think ...
by James9118
Tue Nov 07, 2023 11:12 pm
Forum: Teaching
Topic: Gaze Behaviours in Fly Casting Accuracy
Replies: 293
Views: 8535

Re: Gaze Behaviours in Fly Casting Accuracy

When I practice competition accuracy I often just put small cones out and then either Tracy or I (depending on who's casting) measure how far from the cone the fluff lands - actually we have a tape marked as '5', '3' and '1' at the radius of the world championship hoops - this makes scoring quick an...
by James9118
Tue Nov 07, 2023 3:10 am
Forum: Teaching
Topic: Gaze Behaviours in Fly Casting Accuracy
Replies: 293
Views: 8535

Re: Gaze Behaviours in Fly Casting Accuracy

VGB wrote: Mon Nov 06, 2023 5:36 pm I scored nothing on the first round of a BFCC accuracy competition because I didn’t know that there was a set order.

Regards

Vince
...and you didn't listen to, or gaze at the markers who were telling you, and pointing out, which one was next :p
by James9118
Thu Oct 26, 2023 2:36 am
Forum: FP Discussions
Topic: Today's FP... Tough Going
Replies: 3
Views: 600

Re: Today's FP... Tough Going

Hi Gary, Apologies - I've just seen this now. We don't actually monitor the temperature but obviously we can feel it on our legs. There have definitely been flats that have been too hot - that wading through bath-water type feeling. I've also spoken to some friends who live on the island and they ha...
by James9118
Mon Oct 16, 2023 2:02 pm
Forum: Teaching
Topic: Weighted flies training time
Replies: 22
Views: 1263

Re: Weighted flies training time

I'm always slightly surprised at how much difference the terminal tackle I'm using here in the Bahamas makes to my cast, i.e. a substantial 'budgie' of a fly with 20 inches of thick wire (with split rings etc). Firstly, any attempt at a roll cast pick-up is doomed to a humiliating failure. As such, ...
by James9118
Sun Oct 08, 2023 11:22 am
Forum: Flycasting Physics
Topic: Conservation Of Angular Momentum (COAM)
Replies: 457
Views: 9571

Re: Conservation Of Angular Momentum (COAM)

I thought it had been agreed that, in the real world cast, coam doesn’t exist. A quick comment before analyzing your post in details: COAM does not exist since there are external forces acting on the loop, One of the issues with this type of discussion is the desire to over simplify things. Unfortu...
by James9118
Sat Oct 07, 2023 11:27 am
Forum: Flycasting Physics
Topic: Conservation Of Angular Momentum (COAM)
Replies: 457
Views: 9571

Re: Conservation Of Angular Momentum (COAM)

I'll also add another note here about how care is needed in physics whilst swapping between systems and how you need to be careful with certain observations and conclusions. A good example is Newton's cradle. Imagine just tracking the motion of the first ball bearing only, when it has been lifted an...
by James9118
Sat Oct 07, 2023 9:59 am
Forum: Flycasting Physics
Topic: Conservation Of Angular Momentum (COAM)
Replies: 457
Views: 9571

Re: Conservation Of Angular Momentum (COAM)

I'd like to put in a point of clarification here also; the formula for evaluating angular momentum doesn't actually contain a term for the angle change, just mass and radius, this is an important thing to remember. People can get drawn into thinking they want to see something rotating around a full ...

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