Narrowbodies are easy to tell apart even if you can see only a small portion of the aircraft from your window/vantage point:
- 738 - short length of fuselage, two engines under the wing
- 752 - skinny tube, 2 window exits on each side
- S80 - unmistakable
Widebodies can be hard to tell apart if you cannot see the entire aircraft. Here's what I look for:
- AB6 - wingtips (to distinguish them from the 772s)
- 772 - 4 doors each side, no window exits, distinctive "crushed" look at rear of fuselage, where it meets the tail
- 763 - 2 window exits on each side
- 762 - 1 window exit on each side
(Eagle equipment is much harder to tell apart, particularly the RJ fleet.)