Starlionblue From Greenland, joined Feb 2004, 17019 posts, RR: 67
Reply 2, posted (10 months 3 weeks 5 days 7 hours ago) and read 2520 times:
The front edge looks like a reinforcement of some sort. That's where you get most wear and tear. Might well be a stronger material and might well be replaced much more often than the rest of the winglet.
"There are no stupid questions, but there are a lot of inquisitive idiots."