I would like to venture a slightly different sort of thread, one where anyone can participate, but instead of trying to find pictures for people to identify, you need to find pictures of 2 completely unrelated aircraft which very closely resemble each other, in essence a 'lookielikie'. You see this sort of thing a lot with celeb pics and cartoon characters, but I want to try it with airplanes.
I know sometimes to help identify an airframe many will say 'oh that looks like a 'planetype' but 'feature' is different'. Totally unrelated designs would be best, instead of just block point differentials - you can't just cheat and say the 747 classic looks a bit like the 747-400, that's too easy. Looking at the similarities between say the F-15 and the Mig-25 for instance is more interesting. There are no rules, just try to pick aircraft of very similar configuration.
I think this will be a fun exercise in aircraft differentiation, and I'm going to get it rolling with some examples, have fun, can't wait to see what y'all come up with
Photo © Rahul Devnath
Photo © Flemming K. Fogh
India's NAL Saras looks like Embraer's CBA-123, sadly neither have been successful.
Photo © Thomas Schmidt-Blindenhöfer
Photo © Stelios Ioannou
Vickers VC-10 looks like Illyushin IL-62, I believe both are starting to dwindle in number.
Photo © RAScholefield
Photo © Carlos De Oliveira
The american C-119 Flying Boxcar looks like the Nord Noratlas, nice classic military transports.