removing mylars at every annual?

On Wednesday, October 11, 2017 at 6:26:36 AM UTC-4, krasw wrote:
On Wednesday, 11 October 2017 10:49:37 UTC+3, Darryl Ramm wrote:
On Wednesday, October 11, 2017 at 12:23:59 AM UTC-7, krasw wrote:
On Wednesday, 11 October 2017 00:20:13 UTC+3, Darryl Ramm wrote:
On Tuesday, October 10, 2017 at 2:10:23 PM UTC-7, krasw wrote:
If you have proper sealing, teflon tape under mylar, it is not possible to lubricate hinges. Use upper mylar to prevent water or dust entering hinge. Change everything after 3-5 years and lubricate using grease, not anything that comes out of spray can as it is only cosmetics.

Sure you can, if you want to, you stick a large hypodermic needle thought the teflon barrier tape and apply oil from a syringe.

Hole in airtight seal, interesting.

Oh no, a few hypodermic needle holes. Maybe the massive bleeding of air though those tiny holes will affect the handling, and the gliders will fall out the sky.... it's amazing whole fleets of gliders maintained in this way have not fallen out of the sky, or had any other apparent problems...

Well why seal at all then, the glider flies perfectly well anyway?

My wing ends up with 2 holes at each hinge, made with a sharp 20 gauge needle.
These holes mostly close back up anyway. Given that they are on the high pressure side of the wing, underneath a close fitting wiper seal, I doubt that a meaningful affect on performance results.
This is a well proven technique.
UH