Originally Posted by
Stizzack
Airbii have wingtip fences, well I think BA might have some of the old 320-100s that don't but let's leave that aside
Now, when you see the wingtip fences (small winglets) and know it's an Airbus, the 319 has one overwing exit, 320, 2 overwing exits, and 321 no overwing exits, just 4 doors each side.
737s have no wingtip fences (as far as I know BA has not outfit any with the aftermarket winglets either). Engine intakes are oblong at the bottom as well, vs. airbus.
Without turning this into a technical geekfest (too late, I fear
), the engines are only oblong if powered by CFM-56s (also, incidentally, the only engine I can recognise on shape alone
), so this isn't applicable for all 737s, which can carry a variety of engines. So oblong engine - definitely 737 - round engine, can't say for sure what it is.
The number of struts on the wings are also different - I seem to recall that one has 4 and one has 5, but since I can never remember which is which, for me that is one of the more useless pieces of identification!
737 from Airbus is easy - now, telling 319/320/321s apart is much more challenging...