Starlionblue From Greenland, joined Feb 2004, 17427 posts, RR: 66
Reply 2, posted (2 years 1 month 4 weeks 2 hours ago) and read 3447 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."