Molly's questions

Walter & Group:

Try to answer Molly's questions (I have high-lighted these in  bold red letters): -

 

From: Molly Semenik [mailto:mollysemenik@xxxxxxxxxxxxxxxxxxxxxxxx]

Sent: Sunday, February 25, 2007 11:44 AM

To: masterstudy@xxxxxxxxxxx

Subject: Fishing Sea of Cortez, lessons learned

 

Hi Gordy,

I have returned from Mexico fishing the East Cape area of the Baja. I fished for

five days and learned a great deal. I have a few questions for the group.

 

 

I was fishing for Seirra, a toothy fish good for the breakfast table (my goal).

I was fishing amongst the local Mexicans who where "hand lining". To watch them

cast with out a rod was a beautiful thing.

 

 

Question: what type tippet do you use for toothy fish and what knots may work to

tie on a fly? I learned to have several leaders with fly ready (loop to loop

connection) for changing flies. I only had on hour to fish before the sun would

be too high and the fish would be gone.

 

 

Question: I switched to a popper, very hard to cast. What did I do to my cast

and leader to get the thing out to the fish?

 

 

Now I am fishing for Rooster fish from the beach. They move fast and I only had

time for one back cast to load my rod. The fish this day where not spooky and in

about two feet of water, just get it out and fast!

 

 

Question: What lines could I use? And, what could I do with my leader?

 

 

P.S. I used an intermediate sink clear line and I found one disadvantage, upon

retrieving the line, it was hard to know how much I brought in and therefore when

I could pick up for a cast. If I had too much line out I could not roll cast

pick up, I missed fished because of this. Maybe I could mark the line? Also, I

remembered to not try to pick up too much line for fear of stressing my elbow.

Casting from the beach is tiring because you are moving (sometimes running) up

and down the beach and casting many, many times. And, I learned that Roosters

are real fighters.

 

 

I now can use a strip basket and put the rod under my armpit and use a double

hand retrieve!

I have added three species to my list: Roosterfish, Durado and Ladyfish. Those

darn Sierra got the better of me. I better go back and try again! And then

maybe a Marlin?

Molly

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Howdy Again Gordy;

 

I am reviewing all the responses to the acceleration issue. I do not, however, believe that comparing "G" forces or rocket acceleration is relative to  the physics of fly casting as our issue is accomplishing perfect loops. Rockets, airplane take offs are not concerned with "loops" or loop control. Let's get back to basics.

 

robert

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Robert...   Right you are.  They are not related to loops.  They are, however, related to an understanding of acceleration as a topic.

 

My point in asking this was to draw out the idea that there IS such a thing as changing acceleration whether we wish to call it, "accelerated" or "accelerating" or "increasing" acceleration to counter the opinion of some who might have us believe the opposite.

 

Steve Hollensed has given us more insight with his message, below:

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Hi Gordy,

Great question.

The shuttle goes from 0 mph to about 17,500 mph (orbital velocity) in

about 8 minutes (I think it's 8 minutes, I know its close) Wow - what a

ride.

It is important here to differentiate between average acceleration and

instantaneous acceleration. Based upon these numbers, the average

acceleration to main engine cutoff is 21,875mph/minute, assuming an 8

minute time interval. Obviously, the instantaneous acceleration is

increasing through most of the trip (or else the astronauts would feel

maximum g-force instantly when the engines turn on). That is the same as

saying that the instanteous velocity is changing at a faster rate. If

the shuttle had a speedometer it would start moving faster, not simple

indicate a higher speed.

So what we have been discussing with respect to casting is the

instantaneous acceleration of the rod tip. Instantaneous acceleration is

the acceleration value at a given instant in time, of course And it can

increase, decrease, or remain constant throughout the casting stroke. (I

guess in reality it has to do all three, but we have really been

discussing the main part of the stroke in these discussions)

It is interesting to note that the astronauts, once they are in orbit

and traveling at 17,500 mph, they have no sense of this high speed. We

can feel acceleration, but not speed. This is the exact same reason that

a rod tip traveling at constant speed will not load a rod. The rod

cannot "feel" speed, it "feels" acceleration.

Sir Isaac might be proud that we are using his work to explain the

behavior of fly rods. Wonder if he fly fished?

Steve

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