ol Al....
I agree with your calculations.
There are MANY external influences which can affect this........like wind, temperature (changing density of the air), etc.
"Internal" influences are legion....such as dirty lines, the modulus of the rod, guide and tip top problems...............................to name a few.
Gordy
From: "Allen Crise" <flysoup@xxxxxxxxxx>
To: "gordon Hill" <hillshead@xxxxxxx>
Subject: FW: Line carried / distance
Date: Sun, 5 Feb 2006 14:28:37 -0600
Allen Crise FFF Master Casting InstructorSOC VP of EducationHawk Ridge Flycasting School2508 A County Road 1011Glen Rose, TX 76043254-897-2045geocities.com/rrdoctorflysoup@xxxxxxxxxx
Group....
Questions to ponder:
1.) You are a good caster, and can easily make the 85' target using a 7 wt. rod and a WF7F line. It's a nice day, with no wind at all.
How far are you likely to be able to cast when you purposely carry 50' of line out of the rod tip before making your presentation cast. ? 75 ft
2.) Now you are limiting yourself to carrying only 30' of line. How far are you likely to be able to cast, now ? 45 ft
3.) What simple formula would you use to come up with the approximate length of flyline that you can shoot relative to the amount of line carried while false casting ? (The approximate length of the shoot.) half the line out.
4.) What external factors would change this ratio ? dirty line dirty guides wind. size of loop size of fly.
Gordy