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Search found 64 matches

by Ian Walker
Sun Jun 14, 2009 3:27 pm
Forum: Flycasting
Topic: Big loops - loops
Replies: 35
Views: 6886

Hi Micke, Your difficulty controlling loops size on longer casts is a problem that almost everyone encounters during their fly casting development. Several posters have already pointed out that the basic difficulty is the larger arc (angle) that is required to impart sufficient energy for a long ca...
by Ian Walker
Wed Apr 22, 2009 10:07 pm
Forum: Casting Sport
Topic: FLY DAY. Moscow. April 2009 - Great Spring Fly Fishers Get Together
Replies: 52
Views: 12958

:) California was also once a Russian colony :D
by Ian Walker
Wed Apr 22, 2009 3:15 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Hi Sleepy, I think your idea of the air resistance on the leader and fly resulting in the spaghetti loop sounds reasonable. However, there is one exceptional case that I've witnessed. Mr. Mark Sedotti performs a very interesting and long cast using a shooting head and a very heavy "Bunker"...
by Ian Walker
Tue Apr 07, 2009 11:19 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Please disregard the theory I proposed about the loop unrolling from the top and the bottom at the same time. I must have been under the influence of a contact high from the seal fur that my my neighbors have been smoking . :;):

Ian Walker
by Ian Walker
Tue Apr 07, 2009 8:21 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Hi Lasse, What your reporting with the 300 grain type 2 sinking head may not be too different to what I observed with the 300 grain tournament head. I think the loop may unroll completely before the cartwheeling begins. It's very hard for me to observe accurately what is happening with the casts ev...
by Ian Walker
Sun Apr 05, 2009 1:28 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Hi Aitor,

I don't understand why your saying your video isn't relevant. Would you mind explaining a little more? Thanks for the effort, even if the video isn't quite right for this discussion.

Best regards,

Ian Walker
by Ian Walker
Sun Apr 05, 2009 12:56 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Hi Magnus, My casts were made outdoors and there was a slight breeze 1-3 mph blowing. Viewed from above with the forward cast direction as 12:00 (clock analogy), the wind was blowing along a line from 4:30 to 10:30. In other words a quartering tail wind from the right side. Yes it's certainly possi...
by Ian Walker
Sun Apr 05, 2009 11:53 am
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Hi Aitor, In your excellent video, what tackle did you use (Rod, shooting head, running line type and length)? What was your casting technique (Hauling or not)? It's very hard for me to tell from the video but it appears that the distance the fly travels in front of the caster is approximately 1.5 ...
by Ian Walker
Sun Apr 05, 2009 5:30 am
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

So is shooting line friction ( in the guides) or mass the most important factor in making the head unfurl properly? Rob Hi Rob, The only thing I am sure of is that a high speed loop with the 300g hi-density head and 15' of running line that I used in my test casts will completely fall apart very qu...
by Ian Walker
Fri Apr 03, 2009 3:42 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Lasse Karlsson said: Ps. I slowed my clip down, so it would be easier to see the cast. :) Thanks for letting me know that you slowed down the clip. I was thinking that since you come from a cold northern climate that everything just moves at a slower speed because of the cold temperature (Fly lines...
by Ian Walker
Fri Apr 03, 2009 2:13 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

I did a few shooting head experiments last night. The head was a 300 grain T-19 ACA Angler's Fly tournament shooting head. I tried a couple of different lengths of running line 30' and 15'. Incidently 15' (9' in the rod and 6' overhang) is the minimum length of running line I can cast using a full ...
by Ian Walker
Thu Apr 02, 2009 3:25 pm
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Lasse, Glad to hear your interested and have a different idea of how shooting head will behave with no running line. I'm hoping that I get a chance to do some filming with Gordy next week. With luck we'll be able to compare results. A couple of things that you point out are of interest to me. First...
by Ian Walker
Tue Mar 31, 2009 4:34 pm
Forum: Flycasting
Topic: Basic Physics of Casting.
Replies: 393
Views: 41028

Frank, This tried to be the concise explanation that Marc was asking for. Even shorter: Rod loading comes from inertia on the part of the rod and on the part of the line, and acceleration of the rod through rotation on the part of the caster. The main function of rod load is to get a straight traje...
by Ian Walker
Mon Mar 30, 2009 10:10 am
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

"Constant Tension" was not really the correct choice of words on my part. The tension on the back end of the loop is constantly present but the value of that tension (Measured in Newtons) is not constant. In practical terms the tension is created by frictional forces of the running line p...
by Ian Walker
Mon Mar 30, 2009 4:02 am
Forum: Flycasting
Topic: Overhang, Loops and Post Loop Flight - Shooting Head Physics
Replies: 82
Views: 15832

Rob and jmac, I am also hoping that the theory of the shooting head can be further developed. I certainly don't have a complete understanding yet, but there are a couple of fundamental precepts that I believe any theory should be based upon. These are precepts that I believe are well known and fair...