We really like both of your designs. Regarding #10, we like the idea that it looks like 'wings' that a military or commercial pilot would wear on their uniform; could it be even more representative of 'wings?' Also has a great 'art deco' look which would be nice to maintain.
Regarding #8 - Clever. Could you refine the 'airplane' design to look a bit more like our airplane logo? If not, can you play with the design a little more to make it look more like an airplane?