If the a/c flieing over are at a lower altitude you can tell from the normal a/c "stand outs" as I like to call them. The 744 of course has the 4 engines, 777 has the stub tail, 767 just stands out to me, the 757 is very skinny and the 737 is in a class of it's own. The MD
-11 I can tell is only Fed-Ex....
I live in an area where when it's light out and the skies are clear you can tell the airline and a/c. It's really great I think. The MD
-11's that are going into OAK
start their decent right over my school and house. A/c in and out of CCR
are over the house and the usual Coast Guard or MedaLife helo's are a usual. With the added F-16/18 and other airshow fav's.