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A golf ball goes twice as far using a dimpled surface. Many European aircraft (especially gliders) use dimple strips or zig-zag tape on propellers, wings, struts etc. Very few US aircraft use these products.

The dimples/holes/perforations are sometimes mechanically stamped onto a part, but more often a metallic or fiber tape is applied to a thick part of the surface. This is using existing after market technology and has nothing to do with "blow holes".

This question is not how it works it is HOW WELL it works!

What typical improvements in lift/drag are gained and are there any drawbacks to their use?

Dimpled golf ball increase range by twice

Dimples on golf ball reduces drag and doubles its range.

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Dimple perforations or strips and zig-zag tape decrease drag on some aircraft surfaces.

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  • $\begingroup$ This question relates to existing technology using strips - not hypothetical complete surfaces. $\endgroup$ – jwzumwalt Jan 12 '18 at 8:30
  • $\begingroup$ Not suggesting anything, and on the second question, there is an answer which mentions turbulators, and indicates the turbulence pattern needs not be on the whole surface as soon as we know the direction of the airflow. $\endgroup$ – mins Jan 12 '18 at 8:36
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    $\begingroup$ I don't think strips/dimples are particularly effective for increasing lift . They reduce drag by transforming the laminar flow over a surface to a turbulent flow so that the flow remains energised and follows the shape of the object instead of separating. $\endgroup$ – DeltaLima Jan 12 '18 at 8:56
  • $\begingroup$ This question has nothing to do with blow holes. This question is specific to after market dimples and zig-zag tape. It is not how it works it is HOW WELL it works! $\endgroup$ – jwzumwalt Jan 12 '18 at 18:57