At the rate hobbyists are outdoing one another, actual airplanes will soon be thought of as mini versions of model planes. I only became aware of "giant-scale" radio-controlled planes recently (not sure how I could have missed them) when reporting on an rc fly-in near St. Louis. That story, which is here, has the basic facts and figures and dollar amounts. This post is largely a repository for pix and videos.
Here's a video of the world's largest RC plane -- not a happy ending, as the title suggests: are
Here's one of the B-36 shown being built above:
In the event, you still want to see more, here's more: