DIY RC Plane
RC planes are really cool, but are you willing to spend $200-$300? Me neither, so here I have instructions for you, on how to build this awesome DIY RC plane for a lot less than that.
So here is the instruction link to an article at instructibles.com
http://www.instructables.com/id/DIY-SWAPPABLE-STUNT-PLANE/
This article is related to engineering, because you solve the problem of coming up with a working plane on a tight budget.