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by VGB
Fri Feb 01, 2013 10:23 am
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

Still scratching at how to explain this  :p Grunde said: No the energy input is not the same. That is the whole point; the spring effect of a bendy rod allows you to input more energy for the same acceleration/speed-profile than a rigid lever. work = force * distance The distance the two rod tips t...
by VGB
Wed Jan 30, 2013 5:06 pm
Forum: Flycasting
Topic: WF or DT? - Which can you cast farther?
Replies: 49
Views: 15338

Good article Lasse
by VGB
Tue Jan 29, 2013 4:11 pm
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

sms wrote:I think it is correct. As long as the a and m are the line's figures.

The bend may not be bigger for higher force as it depends on the rod angle.
Perhaps we need some new terminology to discriminate between force applied at the butt and that felt at the tip  :p
by VGB
Tue Jan 29, 2013 2:04 pm
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

And I also still believe that all of Newton's three laws (including the 3rd  :p which someone falsely believe is not valid in the dynamic case) and Hookes law is all valid and applicable in flycasting  ;) Hi Grunde Does that mean we can say things like Dynamic Amplification Factor instead of mechan...
by VGB
Tue Jan 29, 2013 1:53 pm
Forum: Flycasting
Topic: WF or DT? - Which can you cast farther?
Replies: 49
Views: 15338

Lasse Karlsson wrote:Vince, that's easier done in an overhead cast  :cool:

Cheers
Lasse
I must be really good then  :p
by VGB
Tue Jan 29, 2013 10:17 am
Forum: Flycasting
Topic: WF or DT? - Which can you cast farther?
Replies: 49
Views: 15338

Lasse Karlsson wrote:Ps. Vince, it goes for spey too  :p
Lasse

Speys allow you tie bows in your leader, there's no other reason for doing them  :cool:

regards

Vince
by VGB
Sun Jan 27, 2013 5:03 pm
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

Merlin wrote:"Tirez les premiers, Messieurs les anglais" (battle of Fontenoy)
Je suis chaud - to my belle mere at breakfast 2010
by VGB
Sun Jan 27, 2013 4:40 pm
Forum: Flycasting
Topic: WF or DT? - Which can you cast farther?
Replies: 49
Views: 15338

Hi Randy

The link was only meant to be informative of line weights, I would not get too wrapped around the axle for stress curves.  I'll leave discussions on overhand to Lasse, I cannot cast that far  :blush:

regards

Vince
by VGB
Sun Jan 27, 2013 4:35 pm
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

Merlin In the past, my day job required me to deal with models of serious complexity such as predictions of the behaviour of stores releases from Eurofighter.  I then had to agree test programmes to verify those models and provide data to tune them.  I do understand how you can and cannot use them....
by VGB
Sun Jan 27, 2013 1:52 pm
Forum: Flycasting
Topic: WF or DT? - Which can you cast farther?
Replies: 49
Views: 15338

There is some good information here:

http://www.rodbuildingforum.com/index.p....+weight

regards

Vince
by VGB
Sun Jan 27, 2013 1:48 pm
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

The question was not to perfectly align the assumptions to reality. As Vince said, checking the physics of a simple model does not need to go up to that point. Merlin I think this is the point being made, Where simplifications are made they should be declared and the impacts explained. I have not b...
by VGB
Fri Jan 25, 2013 8:45 am
Forum: Manshit
Topic: Welsh manshit
Replies: 9
Views: 7970

I once fended off an angry Jack Russell - no one called me a hero, and I didn't make it on to Sky news :???: .   Just don't understand it - I'm Welsh too They possibly thought you'd mistaken it for a very small sheep  :p The way it was biting at my trousers it was no wonder they ended up around my ...
by VGB
Thu Jan 24, 2013 9:42 am
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

I think that explains why one is at a maximum while the other is at a minimum, but I thought the maximum of one would match with the minimum of the other along the t scale, but they seem slightly out of time. That is what I thought unusual :) Trev Have a play with this: http://phet.colorado.edu/sim...
by VGB
Thu Jan 24, 2013 9:35 am
Forum: Manshit
Topic: Welsh manshit
Replies: 9
Views: 7970

James9118 wrote:I once fended off an angry Jack Russell - no one called me a hero, and I didn't make it on to Sky news :???: .   Just don't understand it - I'm Welsh too
They possibly thought you'd mistaken it for a very small sheep  :p
by VGB
Mon Jan 21, 2013 9:08 pm
Forum: Flycasting - 2 Handed
Topic: Rod Loading - Spring v Lever
Replies: 602
Views: 107503

Vince: the broomstick is represented by the red lines in the Lincast model, you can find circumstances where the broomstick is better than the flexible lever... guess why. Hi Merlin Unfortunately I have not had time to use Lincast but I suspect I know the answer to your question: http://www.sexyloo...