#28 is definitely very strong for me. I like it a lot. I think the -for america- could maybe be a little more beefy or bold...but the size difference between the AVIATION and the second line seems too big. The blue comes off a little muddy or murky. Try some different blues. Also try a different airplane and maybe a red line edge on the left of the icon. Also try moving it to the left.
The blue and red are looking good..probably best on #32. I need the icon to be in line with the logo..don't like how the logo is getting dwarfed by the icon. Everything should go above an invisible line at the bottom of the logo. Could you try messing with font style as well as giving the fonts depth...shadow or color reflection? Thanks.
Also the new airplane is not really what I am looking for. Look around the web..Cessna aircraft has a very basic look in their logo...just try something else out:)