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133ft trout distance cast

Background

The simulated 118ft trout distance cast is based on measured casts performed by competition casters. For this cast, the measured timings and magnitudes of angular motion, translation and haul produces, when given as input to the simulation model, a fairly straight rod tip path and a distance about as measured.

In this section, the results for a 133ft cast show that alternative relative timings and relative magnitudes of angular motion, translation and haul may also produce long casts.

Purpose

The purpose of this section is to present an alternative “use” for the simulation model. Rather than simulating casts based on measured input, “new” casting strokes may be evaluated with the objective of generating ideas for alternative ways of producing long casts.

Input, casting strokes

The 133ft competition cast is presented as two simulations:

1. A periodic 100ft false cast.

2. A 133ft delivery cast, starting from the periodic false cast.

The 100ft periodic false cast and the 133ft delivery cast were calculated using the following boundary conditions:

Input, equipment

The equipment used for the 133ft cast is the same as for the 118ft cast, except that the rod is stiffer.

Comments, input

An approximate comparison of the delivery strokes for the 118ft trout distance cast and the 133ft trout distance cast is shown in the table below:

· The 118ft cast uses high angular speed (procuced by the wrist) and hauling speed. The three maximas for angular speed, translation and haul are separated in time.

· The 133ft cast uses high translation (produced by wrist and arm). The three maximas for angular speed, translation and haul coincide.

Output, animation

Click on the graph below to start animation.

Comments, animation:

The animation shows comparatively small loop radii for the periodic cast and for the delivery cast. The radii are about as for the 118ft trout distance cast. This suggests that long casts can be made using various combinations of the relative magnitudes and timings of angular motion, translation and haul.

Output, graphs

The graphs considered most relevant are presented below. For explanations to the graphs please see the 50ft oh ref. cast.

Output, energies and work