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Search found 2113 matches

by Merlin
Sat Mar 02, 2024 8:37 am
Forum: Flycasting Physics
Topic: Evaluating the Haul
Replies: 98
Views: 3357

Re: Evaluating the Haul

Hi John

Thanks a lot for your kind comment. I'm glad to see that modeling can give good information (sometimes).

Merlin
by Merlin
Fri Mar 01, 2024 2:19 pm
Forum: Flycasting Physics
Topic: Evaluating the Haul
Replies: 98
Views: 3357

Re: Evaluating the Haul

Thanks to Gordy’s database about Henry’s back cast, it is possible to compute some ratios to evaluate « efficiency » and “effectiveness ». “effectiveness”: hauling distance is about 1.8 m within some 0.2 s and hauling speed is around 14 m/s “efficiency”: I took the middle of the cork as the referenc...
by Merlin
Thu Feb 29, 2024 2:11 pm
Forum: Flycasting
Topic: Hauling - pulling fly line through the guides
Replies: 115
Views: 3949

Re: Hauling - pulling fly line through the guides

Put another way, if the haul is exhausted prior to the maximum rod tip speed, the haul is adding nothing to the line speed. Hi Graeme A haul, even if exhausted before maximum tip speed, generates more speed thanks to the extra energy stored into the rod which is due to the extra force created by th...
by Merlin
Thu Feb 29, 2024 2:00 pm
Forum: Flycasting Physics
Topic: Evaluating the Haul
Replies: 98
Views: 3357

Re: Evaluating the Haul

Let’s come back to Henry’s BC and give some insight. Henry.JPG Speed patterns Henry speeds.JPG It is interesting to note that the line hand begins by following the stripper guide with no haul speed generated during this « passive » period of time. Haul speed begins to rise as the line hand is stoppi...
by Merlin
Sun Feb 25, 2024 2:15 pm
Forum: Flycasting Physics
Topic: Evaluating the Haul
Replies: 98
Views: 3357

Re: Evaluating the Haul

Gordy I copied a comment from you in the thread about measuring haul: Regardless of the technique I would think measurements would show that incorporating a line hand haul path that opposed the direction of the stripper guide path would produce higher haul speeds since the stripper guide speed is so...
by Merlin
Thu Feb 22, 2024 4:13 pm
Forum: Flycasting Physics
Topic: Rod tracking and accuracy
Replies: 18
Views: 430

Re: Rod tracking and accuracy

Hi Vince

That means that the butt section had no significant spine effect. The whirling is relatively rare, only one of my (about 20) rods does show such problem.

Merlin
by Merlin
Thu Feb 22, 2024 4:10 pm
Forum: Flycasting Physics
Topic: Rod tracking and accuracy
Replies: 18
Views: 430

Re: Rod tracking and accuracy

Hi Torsten

Funny, I checked the tackle section this morning but did not see the change.

Merlin
by Merlin
Thu Feb 22, 2024 3:07 pm
Forum: Flycasting Physics
Topic: Rod tracking and accuracy
Replies: 18
Views: 430

Rod tracking and accuracy

I guess Paul decided to drop the thread on the new rod supposed to be 4 times more accurate than its predecessor. One can use any rod and get accuracy from training, even if the tool is imperfect, the caster can accommodate with practice. However, one can detect a better tool quickly when he tests i...
by Merlin
Thu Feb 22, 2024 2:35 pm
Forum: Flycasting Physics
Topic: Evaluating the Haul
Replies: 98
Views: 3357

Re: Evaluating the Haul

Gordy The drawback of using a passive component during the haul (stripper guide motion), is the lack of control of the difference in timings between rod motion and arm motion. This is the case for the BC for example, where making a late haul with line hand corresponds to a loss in hauling speed. I d...
by Merlin
Wed Feb 21, 2024 2:05 pm
Forum: Flycasting Physics
Topic: Evaluating the Haul
Replies: 98
Views: 3357

Re: Evaluating the Haul

Hi Walter If one can make a haul always in line with rod axis, then there is no more passive haul in a BC and the "efficiency" is 100 % By that I mean that maximum haul speed corresponds to maximum hand speed. This is not the case in my FC scenario. To get 6 m/s for maximum haul speed I ne...

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