Hi!AR3-GP wrote: ↑16 Jul 2026, 18:19https://i.postimg.cc/nzjr78VP/image.png
I'm not sure what the word for it is, but it's interesting that they are using "transition tape" on the underside of the wing. The yellow picket fence. The purpose would be to transition the boundary layer on the underside of the wing from laminar to turbulent. You don't normally see this.
It is called turbolator tape. Widely used in soaring. It produces tiny wortices and prevent forming of separation bubble (significant increase of drag) on airfoils used on glider wings.
Read more here:
https://backend.orbit.dtu.dk/ws/portalf ... 042016.pdf
And even better here:
https://medium.com/rc-soaring-digest/re ... 67932ebcb8
And simpler explanation of a guy on reddit :
https://www.reddit.com/r/Gliding/commen ... ator_tape/
Cheers,
Dusan






