Schleicher has an option where you can get tie down bushings in wing tips for screw in tie down rings. Also a wing wheel saddle is good for a tie down. i have one saddle I use just for tie downs.

On Wednesday, January 17, 2018 at 11:01:46 AM UTC-8, JS wrote:
This is a great subject. Most glider manufacturers neglect the need for real tiedown points, especially on single seaters.
An easy tiedown point addition is a pair of "bras" for the wingtips. Essentially a loop of webbing with a D-Ring sewn in, and webbing to prevent the loop from sliding inboard to attack the aileron.
For gliders with no wingtip beyond the ailerons, adding a hard point is a better idea.
If it's going to be humid/wet, use good covers.

Simple text drawing (from above or below). All are loops. D-ring at the junction on the left.
For something like an LS4 or 6, I found using the (optional) strap around the trailing edge keeps the strap from sliding around the curved leading edge.
Jim

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