I did a Google search for "Minix wing tip"

Came up with....

https://www.google.com/search?q=%22M...sm=93&ie=UTF-8

This page (out of the 1st link) is sorta interesting (it's on page 3 of the above search).

http://www-mip.onera.fr/projets/Wake...Durston%5D.pdf

Most of the pages are old, the "newer ones" basically regurgitated the older info......

Curious on what others here think/feel/know......