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Search found 1498 matches

by Walter
Tue Jul 16, 2019 12:55 pm
Forum: Flycasting Physics
Topic: Lift force acting on a fly line
Replies: 321
Views: 25206

Re: Lift force acting on a fly line

After 30 pages on the subject I wonder if anybody has read this:

https://paperplanemafia.com/how-do-paper-airplanes-fly/
by Walter
Tue Jul 16, 2019 12:21 pm
Forum: Flycasting Physics
Topic: A Climbing Loop?
Replies: 93
Views: 10673

Re: A Climbing Loop?

I can however see that If I do Gordy's applies to applies, and aim 25 degrees up with the flyline, it will fall much shorter, as anyone doing collpased casts knows, Freshman physics teaches that the optimum launch angle, i.e. the launch angle that results in the greatest distance, is 45 degrees. Fr...
by Walter
Tue Jul 16, 2019 4:49 am
Forum: Flycasting Physics
Topic: A Climbing Loop?
Replies: 93
Views: 10673

Re: A Climbing Loop?

gordonjudd wrote:
Mon Jul 15, 2019 11:28 pm
Thus I would expect the plug to go much further using a spinning rod even if you had the same launch speed because of its higher launch angle. That is the way it works for cannon balls, so I would expect it to be the same when launching a plug.
But it doesn't apply to fly lines?
by Walter
Tue Jul 09, 2019 1:59 pm
Forum: Flycasting Physics
Topic: A Climbing Loop?
Replies: 93
Views: 10673

Re: A Climbing Loop?

Paul, Are you claiming that momentum is a force? Gordy, I think what Paul is saying is that the fly leg has momentum, it has speed and direction and to make Newton happy we need to consider N1. That is, in the absence of external forces, the fly leg will continue to move in the same direction and a...
by Walter
Tue Jul 09, 2019 12:18 pm
Forum: Flycasting Physics
Topic: Thank you!
Replies: 24
Views: 3816

Re: Thank you!

If you normally post equations the first thing you should learn is math. ;)

Looking forward to the new format. Well done Paul and Torsten.
by Walter
Mon Jul 08, 2019 2:26 pm
Forum: Flycasting Physics
Topic: List of flycasting physics papers and how to find them
Replies: 4
Views: 1298

Re: List of flycasting physics papers and how to find them

Copyright will be an issue if materials are recreated without permission of the rights holder. Libraries purchase, or are given, copies of material which is then loaned to users individually and then returned for the next interested user. Making them publicly available to everybody would be an issue...
by Walter
Sun Jul 07, 2019 2:53 am
Forum: Flycasting Physics
Topic: Lift force acting on a fly line
Replies: 321
Views: 25206

Re: Lift force acting on a fly line

I think step (1) is not yet fully finalized, theory needs to be reviewed for special cases e.g. low inclination angles. Which is why I think the javelin model is valid at this stage. I like your approach of verifying some of the papers that have been referenced contentiously for so long on the boar...
by Walter
Sat Jul 06, 2019 1:09 pm
Forum: Flycasting Physics
Topic: Thank you!
Replies: 24
Views: 3816

Re: Thank you!

Graeme, James, Why are you here? If models have no value to you then why participate in Tech Anal? You sound a bit like the kid who wants to know why they have learn math except that you have a choice to stay or go. I would guess that even though you don’t see value in much of the DOGma you are stil...
by Walter
Sat Jul 06, 2019 2:56 am
Forum: Flycasting Physics
Topic: Thank you!
Replies: 24
Views: 3816

Re: Thank you!

I know many of these papers aren’t free but maybe SL could start a library with paid access... That might be possible I don’t know. I’m certainly happy to approach the relevant publishers if it makes sense. I can also approach the authors. If we list publications with links I shall start a Sexyloop...

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