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Search found 1232 matches

by James9118
Thu Aug 20, 2020 3:37 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Lasse Karlsson wrote:
Thu Aug 20, 2020 9:49 am
Loops also morph the other way, ie. from small to big... just throwing that into the mix here 😉

And that has to do with line velocity and where the flyleg is coming from.

Cheers
Lasse
Yes - BDB :D :pirate:

Cheers, James
by James9118
Thu Aug 20, 2020 3:35 pm
Forum: Flycasting Physics
Topic: The Triple or Check Haul
Replies: 72
Views: 4621

Re: The Triple or Check Haul

It's very easy to get loops travelling 'backwards' when the trajectory is upwards, as it appears to be in the film.
In your calculations (Gordy, Daniel), do you account for the real viscosity of air?

James
by James9118
Wed Aug 19, 2020 6:57 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

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...
by James9118
Mon Aug 17, 2020 7:26 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

As I've said many times the Gatti-Bono paper is one of the typical unvalidated piles of cack that gets reeled out time and again as being the final word on fly casting. It's not, I doubt she can fly cast to save her life - if she could, she would have got out there and done some actual validation. I...
by James9118
Sun Aug 16, 2020 9:30 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Yup, as long as the #9 (or the heavier of the two) is at the front i.e. nearest the leader.

I'd be really interested to see how you get on.

Cheers, James.
by James9118
Sun Aug 16, 2020 6:51 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Hi Lasse, I think the important part of the test is that you have two lines of different weights that can be aerialised on there own, but when halved and joined things aren't so easy - and the reasons behind this. I chose #5 and #7 because those were lines I had. I could probably aerialise a #4 and ...
by James9118
Sun Aug 16, 2020 9:08 am
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Hi Lasse,

For me yes, it became pretty ugly - a bit like a casting a WF with an abrupt rear taper with too much overhang.

Cheers, James
by James9118
Sun Aug 16, 2020 7:33 am
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Hi James, would you say that for the Untethered loop travelling further it’s because there is lack of Tension from the rings which results in the loop unrolling slower? For me it’s not all that surprising a result a since as we know shooting heads go further than WF lines go further that DTs. Good ...
by James9118
Fri Aug 14, 2020 9:08 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Done that a heap of times, since this topic seems to surface every few years on SL, the longest I have ever thrown and the straighest was the cut shootingline version so that would naturally be my answer here too 😉 And yes, PITA for sure! Cheers Lasse Well how weird is that - we both get the same r...
by James9118
Fri Aug 14, 2020 4:39 pm
Forum: Flycasting Physics
Topic: Covered topics /how it works
Replies: 130
Views: 6874

Re: Covered topics /how it works

Gordy - hot, sticky, no wind that I could make out.

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