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Fluted Ramrod Shaft
- Thread starter musketman
- Start date
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Fluted arrows were used on the plains of the U.S. four or five hundred years ago. Some fletchers set the feathers in a groove, and that grove extended the full length makes a flute. It adds stiffness to the spine of a shaft. It might actually weaken the ramrod as far as failure pressure if it bends out of column.
You try first. :haha:.
You try first. :haha:.
Sounds like an ad man's hipe.
You don't increase strength of a column by cutting grooves or notches in it.
It's Axial strength and its Bending strength is dependent on it's crossectional area not its surface area. To be exact, the strength of the material is measured in pounds per square inch of AREA (PSI) or in Thousands of pounds per square inch of AREA (KSI).
With a round shaft its crossectional area is equal to pi times the Radius squared. (To find the strength of a given shaft, you multiply this area times the strength of the material (whether your looking for Yield Strength or Ultimate Tensile Strength.)
For a grooved rod or shaft take the area of each groove and subtract it from the round shaft area to determine the remaining area.
This applies to bending strength as well as tensile strength but we don't want to get into the complex formulas involved in calculating the final result here.
From an aerodynamic standpoint, the flutes may have some positive value but I doubt that they would be significient, especially sense most people try not to shoot their Ramrods down range. :: :: ::
You don't increase strength of a column by cutting grooves or notches in it.
It's Axial strength and its Bending strength is dependent on it's crossectional area not its surface area. To be exact, the strength of the material is measured in pounds per square inch of AREA (PSI) or in Thousands of pounds per square inch of AREA (KSI).
With a round shaft its crossectional area is equal to pi times the Radius squared. (To find the strength of a given shaft, you multiply this area times the strength of the material (whether your looking for Yield Strength or Ultimate Tensile Strength.)
For a grooved rod or shaft take the area of each groove and subtract it from the round shaft area to determine the remaining area.
This applies to bending strength as well as tensile strength but we don't want to get into the complex formulas involved in calculating the final result here.
From an aerodynamic standpoint, the flutes may have some positive value but I doubt that they would be significient, especially sense most people try not to shoot their Ramrods down range. :: :: ::
Guest
Wooden arrows were fluted with the thought that the groove lets more blood leak out. Indians didn't use big wide "broadhead" points on arrows so the tip sometimes was only as large as a modern field tip. The bigger heads are atlatl(sp?) or dart points.
Zonie - you took the words right out of my mouth...
:what:
:what:
I think I am over my head here with the math and science, but I'll mention this. Some rifle barrels are made with flutes these days. This makes more surface area for cooling, but is also supposed to stiffen the barrel. Are you saying this won't work?
Guest
The aerodynamics of the arrow shaft are not applicable to the wooden ramrod unless you intend to sight in with ramrods.
Fluting on rifle barrels is done on heavy barrels to increase surface area for cooling ( a questionable asset at best) and to make the heavy barrel lighter.
It does nothing to make the barrel stronger.
Comparing fluted arrows shafts to ram rod shafts is an "apples to oranges" comparison.
Fluting ram rods has as much to do with arrows as me paying back sse his $1.29. :crackup: :crackup: :crackup:
Fluting on rifle barrels is done on heavy barrels to increase surface area for cooling ( a questionable asset at best) and to make the heavy barrel lighter.
It does nothing to make the barrel stronger.
Comparing fluted arrows shafts to ram rod shafts is an "apples to oranges" comparison.
Fluting ram rods has as much to do with arrows as me paying back sse his $1.29. :crackup: :crackup: :crackup:
