hi barry,

sorry to cause you trouble. i updated the link to the a400m files a few days ago. if you download it again you should be good. i tried not using the span before i posted before but rhino wouldn't do it. perhaps moi is better in this regard. i will play with the network command some more and see if i can get what you are showing.

technically you probably could use either rail to scale the profiles. however, i trimmed the trailing edge on my model. so that voids the trailing edge rail. i would have to make a new rail based off the shorter profile, if i wanted to scale off the te rail. so it's not really worth the extra trouble, when i can just use the le rail instead.

update; yeah rhino says it needs 3 or more open curves to do a network surface. so perhaps moi is better there