Walter & Group.........
From Troy Miller:
This statement “The loop is only travelling forward as long as it is unrolling....... so, if we can have it take longer to unroll, the distance achieved is greater.” may be true, but the LINE can still be traveling forward even after it’s straightened. Albeit, it will begin falling with the speed of gravity and a different drag coefficient.
I’ve heard this many times, that the loop stalls immediately when the head finishes turning over. I think we really should be saying that the loop ceases to be a loop once it finishes turning over -- and the straightened flyline becomes a simple projectile at that point, with the major forces on it being reduced to air resistance/drag and gravity. The straightened flyline WILL continue to move in the direction that it has momentum, unless you prevent shooting by clamping off with your line hand. Again, just conjecture but I believe it to be true. If it’s not true, then it defies Newton’s macrophysics…
Regards -- TAM
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Troy....
You are absolutely correct !
A case in point is the travelling of the weighted fly in the direction of the target after the loop has unfurled. When we tried to measure that, we didn't have sophisticated enough ways of doing it .... but we did find that this occurred.
This was, however, a case where the loop had already straightened. (your projectile.)
Look at my statement carefully .... I said that the loop is only travelling forward as long as it is unrolling. I didn't say that it would stall, although if insufficient energy is applied, that could happen.
While this is usually the case, there are instances which break the, "rule". For early students, however, it is a statement which they can understand without drowning them in the ultra-details. For us, the details are important as accurate background information.
In the case of the cut running line, the resistance between the rod tip and the rod leg was eliminated .... yet the loop which was hardly straightening at all, kept travelling a great distance. Proof of this was that when it landed, the layout was that of an unfurled loop !
The length of line carried out of the rod tip be it rear taper or running line is only one factor in determining the rate of turnover of the head ..... so, technically, it is an incomplete, "barometer". Of great importance is the resistance between the rod leg of the loop and the rod tip. The greater it is, the sooner the loop unfurls. When you diminish it either by shooting line or diminishing the friction betwen the line and the rod, the later it unfurls. When you eliminate that resistance, it may never unfurl. As you stated, if you clamp down on it you apply max resistance, and it very quickly unrolls. Taking it one step further; if you apply a "check haul", it unrolls even more quickly.
Once the loop has unrolled it can't go any farther, because it no longer exists. Still, you are correct in that the straightened line/leader and the fly can and usually does go a bit farther even when an unweighted fly is used.
For practical purposes, this additional distance if accurately measured (and we have not done that) is likely not very great when using an unweighted fly. With a heavy weighted head it is probably greater, because the momentum is increased.
Gordy