|
Walter & Group...
While awaiting answers to our morning quiz,, I'd like to add incoming information on hauls :
From Jose-Aitor Coteron :
Hi Gordy,
This is a really interesting issue, and it was the first thing that crossed my mind when you posed the question of that student that needs help with the forward haul timing.
These are the ideas that I consider to be key to understand this issue:
- The function of the haul is to add speed to the line, speed that is added to that applied directly to the rod. Both speeds add each other whether we match the beginning of the stroke with the beginning of the haul or not.
Let’s say that we’ve got a car with two engines that we can use independently. If we put the car in motion with both engines working its speed will be higher than using a single engine, let’s say that this speed is X. When starting with a single engine the speed is X/2; if after a while we start the second engine the car will get to a speed of X. Starting both engines at the same time is not necessary to get the maximum speed.
- The length of the haul can be related with the maximum speed attained by the hauling hand, but not necessarily.
That is, we can make a short but very fast haul or a long and slower haul and the final speed be the same (a short but high acceleration or a long but low acceleration give the same result in speed). Of course, to get the highest speed possible we must use our max. acceleration along the longest path possible.
- To transfer that hauling speed to the line with the maximum efficiency it is better to make the haul when the line is as tight as possible.With a long belly line this is better accomplished when the rod hand has had time to accelerate and put tension in the line, that is, near the end of the stroke. However, when carrying less line to leave the haul for the end isn’t that critical.
- Apart from the main consideration about the speed added by the haul we need to take into account that the haul doesn’t interfere with loop formation and development.
In this regard a haul that finishes before the rod has finished accelerating the line is going to create a tailing loop. A very long casting stroke for a distance cast asks for a delayed haul in order to avoid finishing the haul too early (since we are hauling with our maximum acceleration of the line hand).
On the other hand, a haul that finishes after the loop has formed won’t give us the maximum distance (if that is what we are looking for).
Regards,
Aitor
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[GH] Aitor,
Interesting analogy (the two engine car).
You are correct in saying that the function of the haul is to add line speed.
However, in line with Rene Hesse's message, I see some additional functions which can be accomplished by the haul :
1. Adding line speed
2. Increasing rod load. Granted, this can also contribute to line speed, but it also yields increased rod bend. This is sometimes needed to assure a match between casting arc and rod bend when an almost straight line path of the rod tip is desired for a tight loop.
3. The haul can help diminish or eliminate unwanted slack.
4. The haul can allow the line hand to share the work performed by the rod hand. (This is particularly true when we cast with heavy outfits when fishing large fish in the salt.)
Your statement that, "the haul doesn't interfere with loop formation and development" is interesting. That may be true when the haul is done with proper timing. When done improperly, as you note, it can yield a tailing loop. An important distinction.
In general, I think that your statement that, "a haul that finishes after the loop has formed won't give us the maximum distance....." is true. Since the loop is mature one can only deform it a bit.
Mac Brown has pointed out the value in finishing the haul a tiny fraction of a second after the Rod Straight Position (RSP) as the loop starts to form. I think he may be correct.
Gordy
|