View Single Post
  #7  
Old 02-25-2016, 12:08 PM
GregWeld's Avatar
GregWeld GregWeld is offline
Lateral-g Supporting Member
 
Join Date: Jul 2005
Location: Scottsdale, AriDzona
Posts: 20,741
Thanks: 504
Thanked 1,080 Times in 388 Posts
Default

Just hazarding a guess here..... Aircraft are mostly Aluminum... and the curve and depth might be to reduce cracking.
Reply With Quote