Oly720man From United Kingdom, joined May 2004, 6577 posts, RR: 11
Reply 2, posted (7 years 4 months 4 weeks 1 day 21 hours ago) and read 16256 times:
Modern swept wing commercial aircraft do not have the same section across the span. And no, they're not NACA sections.
The likelihood of finding any section data on the more recent aircraft is quite remote because the wing is the "top secret" bit of any aircraft. It's where lift is made and drag is, hopefully, lost and you're not going to tell the enemy how you did it.