Flag/Wheel Turbulance
- Thread starter Roger T
- Start date
I talked to Smiley about this at the Hog Roast. He said that he has dicussed this with many top shooters (not all) and the belief is that with the target being above the windflags (or at least should be) and the distance between the benches. The small wake coming off the Daisy's does not matter. He did say that pinwheels (like the Aussie flags) cause almost no disturbance at all to the air because of there design. He threw out a engineering term but can't remember what it was.
The interesting thing would be to test in a wind tunnel and actually see for yourself. I can't hardly believe that all them daisy's out there spinning doesn't cause some type of effect across the range.
Hovis
The interesting thing would be to test in a wind tunnel and actually see for yourself. I can't hardly believe that all them daisy's out there spinning doesn't cause some type of effect across the range.
Hovis
Roger,
I could be wrong about this (but I did sleep at a Holiday Inn Express one time) is that the vortex off the propellers of the typical daisy wheel increases around 2" of the radius of the daisy and then looks like a cone. However, the vane of the flag splits the turbalance and the air quickly stabilizes. This also lends to the thought that a flag without a daisy reacts quicker to direction changes. I hope someone on here with a engineering degree with a background in areodynamics can help. I also bet Gene Beggs can give us a good idea of what happens with his background.
Hovis
I could be wrong about this (but I did sleep at a Holiday Inn Express one time) is that the vortex off the propellers of the typical daisy wheel increases around 2" of the radius of the daisy and then looks like a cone. However, the vane of the flag splits the turbalance and the air quickly stabilizes. This also lends to the thought that a flag without a daisy reacts quicker to direction changes. I hope someone on here with a engineering degree with a background in areodynamics can help. I also bet Gene Beggs can give us a good idea of what happens with his background.
Hovis
ray porter
Member
if the daisy had power so it kept on turning when the wind quit, it would, i suspect have big affect.
Gene Beggs
Active member
An Eye Opener!
We benchresters are always looking for gremlins; anything that might cause our bullets to deviate from that elusive one hole group. The question about possible turbulence from daisy wheels comes up from time to time but in my opinion this is not a factor. The daisy wheel is simply being turned by air passing thru it and is not driven by a motor like a fan. There is something else; however, that is producing some strong turbulence for our bullets to pass thru on their way to the target and that is RING VORTICES created by muzzle blast.!
For a real shocker, go to Google and type in, "Vortex Cannons." Once you spend a few minutes there, you will understand why the top shooters of the world fear calm conditions.
Gene Beggs
We benchresters are always looking for gremlins; anything that might cause our bullets to deviate from that elusive one hole group. The question about possible turbulence from daisy wheels comes up from time to time but in my opinion this is not a factor. The daisy wheel is simply being turned by air passing thru it and is not driven by a motor like a fan. There is something else; however, that is producing some strong turbulence for our bullets to pass thru on their way to the target and that is RING VORTICES created by muzzle blast.!
For a real shocker, go to Google and type in, "Vortex Cannons." Once you spend a few minutes there, you will understand why the top shooters of the world fear calm conditions.
Gene Beggs