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Search found 477 matches

by Dirk le Roux
Wed Sep 16, 2020 12:18 pm
Forum: Flycasting Physics
Topic: Analysing loop propagation
Replies: 202
Views: 7884

Re: Analysing loop propagation

Graeme,

I find the fly leg behaviour part of this clip extremely fascinating. Thanks for doing this one!

Cheers,
Dirk
by Dirk le Roux
Wed Sep 16, 2020 8:05 am
Forum: Flycasting Physics
Topic: Shooted cast
Replies: 74
Views: 4074

Re: Shooted cast

Dirk le Roux wrote:
Wed Sep 16, 2020 5:04 am
It comes from a party trick Ed Jaworowski makes somewhere during this show.
The hand-switch/juggle shot is at 3.03 in the video.
by Dirk le Roux
Wed Sep 16, 2020 5:04 am
Forum: Flycasting Physics
Topic: Shooted cast
Replies: 74
Views: 4074

Re: Shooted cast

There is magic in a fly rod that is not apparent when you force it to absorb your input instead of allowing it to relax within its natural parameters... but, then again, I have been accused of smoking too much weed in my youth! Hi Gary A favourite drill for me is, on the forward cast, to air transf...
by Dirk le Roux
Mon Sep 14, 2020 8:42 am
Forum: Flycasting Physics
Topic: Analysing loop propagation
Replies: 202
Views: 7884

Re: Analysing loop propagation

So my question was not about what it is, my question was really about since we have three methods of analysis do we use one to check another or - the bit that I was mostly wondering about - do we actually lose something when we switch from one to another? Thanks for clarifying, Paul. I do consider ...
by Dirk le Roux
Mon Sep 14, 2020 4:23 am
Forum: Flycasting Physics
Topic: Analysing loop propagation
Replies: 202
Views: 7884

Re: Analysing loop propagation

Paul Arden wrote:
Sat Sep 12, 2020 12:23 pm
Since it’s the same loop I assume that the result of the analysis would be the same using each method.
Hi Paul

There may be a range of aspects that analysis considers, or not. When you speak of "result of the analysis", what question/s do you wish the result to answer?

Cheers,
Dirk
by Dirk le Roux
Wed Sep 09, 2020 3:05 am
Forum: Flycasting Physics
Topic: Shooted cast
Replies: 74
Views: 4074

Re: Shooted cast

Did you compute the haul speed by taking the derivative of the distance between the stripper guide and the haul hand? Gordy, as I couldn't track the stripper guide well enough, I used the high contrast point between cork and reel seat to get the haul speed. At the high-haul-speed stage, the hauling...
by Dirk le Roux
Tue Sep 08, 2020 11:32 am
Forum: Flycasting
Topic: Fly Casting Practice
Replies: 5
Views: 693

Re: Fly Casting Practice

Good stuff, thanks Mark!
by Dirk le Roux
Sun Sep 06, 2020 6:00 pm
Forum: Flycasting Physics
Topic: Shooted cast
Replies: 74
Views: 4074

Re: Shooted cast

Interesting that with both of Lasse's two release timing casts, the max tip speed noticeably preceded RSP. Inkedmax tip V - cast 1_LI.jpg The red dots show the RSP tip positions. Magnitudes are greyed due to unknown fps on the file downloaded from Vimeo. Inkedmax tip V - cast 2_LI.jpg FWIW, my measu...
by Dirk le Roux
Fri Sep 04, 2020 3:38 pm
Forum: Flycasting Physics
Topic: Shooted cast
Replies: 74
Views: 4074

Re: Shooted cast

Hi Merlin

Have you proven all that experimentally?

If not. Please describe the ideal/worst case (for compression) cast to make and I'll see what I can film and measure.

Cheers,
Dirk
by Dirk le Roux
Wed Sep 02, 2020 12:47 pm
Forum: Flycasting Physics
Topic: Q: Why does a cast “collapse” if the casting stroke is started before the previous loop has straightened?
Replies: 13
Views: 1594

Re: Q: Why does a cast “collapse” if the casting stroke is started before the previous loop has straightened?

Oh, and I just confirmed again - it is easy enough to make a similar collapse starting the forward stroke with an unrolled line behind :upside: So I think it is acceleration timing more than being out of sync with the centre of mass motion. That and possibly a bump in the fly leg (making the leader ...

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