Geir Hansen - Spey Pages
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post #1 of 19 (permalink) Old 01-23-2014, 01:23 PM Thread Starter
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Geir Hansen

Smooth slowed down video at 1080p.

Inspirational:
http://youtu.be/1kUEk5StVgU

Conservation is nothing more than the fight to save ourselves from ourselves, work that can only be done by ourselves.

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post #2 of 19 (permalink) Old 01-23-2014, 02:40 PM
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Man he is good, That was impressive watching the line unwind.
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post #3 of 19 (permalink) Old 01-23-2014, 08:52 PM Thread Starter
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18' rod cast

Here is his 18' rod cast from a platform:

Wow: http://youtu.be/tNKbgy7MEDU

Conservation is nothing more than the fight to save ourselves from ourselves, work that can only be done by ourselves.

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post #4 of 19 (permalink) Old 01-24-2014, 12:45 AM
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closer to our maker

..the platform provided that extra height

its too bad he cant seem to harness that last bit of whatever to keep his loop tight thru the 1/2 mile trajectory lol




D

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post #5 of 19 (permalink) Old 01-28-2014, 01:45 PM
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very good video .impressive . I never tough an almost upward trajectory on the front loop is what its needed for the longest competition cast kind makes sense .is it to fight gravity and compensate for the fall ? any thoughts ?.thanks for sharing.
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post #6 of 19 (permalink) Old 01-28-2014, 02:09 PM
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I'm amazed at the amount of line on the water, 20+ feet I'd estimate.

For me, the glass is neither half-empty nor half-full, but rather twice as big as it needs to be.
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post #7 of 19 (permalink) Old 01-28-2014, 05:22 PM Thread Starter
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Trajectory

I think there is an optimal angle for trajectory that maximizes distance.

High enough so gravity doesn't prematurely kill the cast distance, but low enough that you are not working against gravity beyond overcoming the first part (prematurely kill distance).

Conservation is nothing more than the fight to save ourselves from ourselves, work that can only be done by ourselves.

www.awholenuthalevel.com Spey casting website.
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post #8 of 19 (permalink) Old 01-31-2014, 07:02 PM
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Trajectory

Great videos of Geir! I think your absolutely right in regards to trajectory, only I might add is that the caster picks the trajectory based on the conditions around him. This happens in a milla second because of other factors that are forming during the cast. The most impressive cast I have ever seen is Geir's 191ft single spey at speyorama 2013. It was a right single and had little trajectory, it was more of a line drive. Pure power and perfect timing, and a new world record. Wish I had a video of that cast!

Brian Styskal

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post #9 of 19 (permalink) Old 01-31-2014, 10:49 PM Thread Starter
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Loop lift

Hi Brian, I came across an article from Noel Perkins from University of Michigan. It was an article that has been floating around Sexyloops for a while.

The gist is the turning over of the loop creates a lift, slowing down the line drop. From what I can gather, this lift is generated when the top leg, turning over around the loop radius, become the bottom leg.

The article went on to show that the tighter the loop, the greater the lift. Noel also had another article to show line drop varying between densities (denser drops faster), and by thickness difference (thicker drops faster).

All this might explain:
1. Some competition lines are low floaters (reduced loop pressure even at the expense of increased line drop)
2. Low angle of trajectory (as line gets thinner, the lift contribution increases)
3. Butt section needs mass (slug effect) as it cannot depend on lift to offset line drop.

I don't know if this ties in neatly with your experience in competition casting. I casted a Carron 85' 10/11 floater today. The PVC coating is sticky soft, so maybe that plays another factor in getting tighter loops (generate higher lift). And at high line speed, very flat trajectory to get out 120'.

Conservation is nothing more than the fight to save ourselves from ourselves, work that can only be done by ourselves.

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post #10 of 19 (permalink) Old 01-31-2014, 11:14 PM
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sushi - can you post a link to the Perkins article, I can't seem to find it anywhere. I'm curious about this "lift" concept.

For me, the glass is neither half-empty nor half-full, but rather twice as big as it needs to be.
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post #11 of 19 (permalink) Old 01-31-2014, 11:18 PM Thread Starter
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Noel Perkins

Sure will when I get on my desk top tomorrow.

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post #12 of 19 (permalink) Old 02-01-2014, 08:45 AM
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Loop lift

I'm curious as well, especially line drop on large diameters.

Brian Styskal

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post #13 of 19 (permalink) Old 02-01-2014, 12:29 PM Thread Starter
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Here is the file on Loop dynamics.

It looks like the points I covered above are in only this one document.
Attached Files
File Type: pdf loop dynamics.pdf (250.6 KB, 139 views)

Conservation is nothing more than the fight to save ourselves from ourselves, work that can only be done by ourselves.

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post #14 of 19 (permalink) Old 02-01-2014, 01:00 PM
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Here is Tommy Aarkvisla ( Speypages member) , a former CLA champion, three time Norwegian Champion spey caster, one time Norwegian champion single hand caster, two time Nordic champion, and top three Spey-o-Rama finisher.


http://www.youtube.com/watch?v=WK3oqN4bGns
http://www.youtube.com/watch?v=w1aqHuA1tT8
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post #15 of 19 (permalink) Old 02-01-2014, 01:10 PM
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In case of wind blowing perfect opposite direction to the cast, thicker line should be lifted upward.

Generally, in absence of any wind, the longest distance should be achieved when line travels at ca. 45 degree to water surface, however with wind-lifting effect the angle probably needs to be reduced.

Brain, any thought on this ?

S
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