![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiYQ28EbUIVqGjBQy6LWZ-wb1s7bqP1CJibmHVlhaFpU0vo53xYMGgPAFQ2wLL5rlYDy3UArLIkX253bC189S1WrcRTyyDWcw8oIgLTNtJnZpNrY8CmYyweWB1KAGszTIiJiErCywxRhAc/s320-rw/Slide1.JPG) |
This is a disc. White arrow shows rotation as thrown by a typical right handed person. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8qBBfEb0lszg9klKS_vmmXCXiwnxie32r71h2Q9RFC47XHN9VV6HGE5GxUQWSw2-nPuy1g_jbRKqWT3mITFbR8DrFqSYl3YYxln8eYByFEu2DDoMwN36yt2LOXuvMD_hdAxmVS00T1h8/s320-rw/Slide2.JPG) |
Separation/recirculation occurs on top and on the aft portion of the disc. There is a reason military planes carry ordinance on the bottoms of the wings. |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjj_Noz7YNvnhVK1idDXgaMDYNgaD43ok5JoBt564DYW_H0uRk0B0cAMzipZ2j79vRquwTlc9NPh0UeGYYjMvZnLrd5X-nu8nVvh2PAbMV6plhAZyllUftyrBYtNhwn3KFa_859p43a-ek/s320-rw/Slide3.JPG) |
Various dimple or depression patterns can be modeled by cutting wedge shaped pieces of textured tape and applying to blue area of this disc. |
![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_sftrkongCj5dEjC48nvOA8aJvoII86DfuZt4Fu8FVV_4IHELjxo6f7aBY-r8mFZli5zSbek6nKvqxcFJktP1iMN97qs-xuYg8_wQPdSZ1_rxCGP3ntL4Iq=s0-d) |
Example of textured tape. Many more options HERE |
A typical engineering program would involve wind tunnels, smoke emitters and exquisitely sensitive transducers. Even with all of that sophistication the data would still be blind to athlete-equipment interactions. Increased lift might come at a cost of more roll which some athletes could deal with and others might not.
These items are not available to the typical coach. So how might a coach sort through all of the options in a statistically valid way?
I will cover that in the next post on the Tukey End Count.
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