366 FLY FISHING AND SPINNING 



feet are not moved from their original position (see Fig. 1, 

 Plate LII.), C may be taken as being unaltered during the 

 motion of spinning, and representing the vertical centre 

 of the fisherman's body and the pivot on which the rod is 

 moved. 



As the rod commences its forward side movement the lure 

 is affected by radial and tangential influences, and by 

 the time the rod, in its accelerating swing, has reached some 

 such position as O, the lure should not only have acquired 

 the same radial velocity as the rod point, but should have 

 risen to the plane in which the rod point is moving, and 

 should have increased its speed so that it is travelling in a 

 line with the rod on a circle concentric with that made by 

 the rod point (see D C L*, Diagram 23) but so far as the 

 centifrugal influence is concerned its movement has been 

 checked by the line which is attached to the drum of the 

 reel, and the centripetal force alone is taking effect. 



So long as the speed of the rod is unabated and the length 

 of the line unaltered, the lure will continue to circle in its 

 larger concentric circle K.K.K. 



In order to propel the lure towards the fish it has to be 

 released from this circle, and to obtain accuracy of direction 

 this release must occur at some definite angle of its radial 

 swing. 



The movement of the rod is, however, only accelerated 

 up to a certain angle of its radial movement, after which its 

 speed begins to diminish. In order, therefore, to get the 

 best effect of this accelerating force of the rod, the lure has 

 to be released from its controlling influences, i.e., a 

 free rotation of the drum on which the line is wound 

 has to be permitted while the radial speed of the 

 rod top is accelerating. The point at which this release 

 is effected is determined by such a trial cast as already 

 described. 



