This plane was my most successful version, being very stable and handling very well. Its twin propellers give it plenty of thrust for a field takeoff and it can stay airborne for just over 7 minutes before the battery runs out. 

See a flight: https://youtu.be/KPDfX2hTWdo

Based on a more successful design this plane was also built with the idea of a slow cruising speed. With a giant wing, low center of mass, and wing dihedral, it was intended to be stable. However, it turned out to be quite unstable in the roll axis and would always end up crashing upside down. 

This plane started as an attempt to make a slower plane that was easy to handle. It used cling wrap for the wings and carbon fiber tubes for most of the body. It was able to fly well, but was eventually crashed beyond repair

See Video: https://youtu.be/PshAXE-y-3s

This plane was an bit of a failed experiment as it flew very poorly. It always did unintended barrel rolls and was constantly nosed into the turf. It didn't last long, but it is still funny to watch looking back 

This plane was a collaboration with another student and ended up becoming a STEM club project. It was able to fly well, but not having any flying experience meant that it still crashed a lot. Its final crash was into as stadium pole and there wasn't much left of the frame after that. 

See a flight: https://youtu.be/OyEfrvPaxh4