If you spot the famed World War I Flying Ace soaring over the San Diego Convention Center this week, you probably aren't imagining things.

Inspired by the trailer for The Peanuts Movie, Otto Dieffenbach of Flyguy Promotions created a custom remote-controlled quadcopter to send Snoopy -- atop his doghouse -- flying through the air. Dieffenbach said he first flew Snoopy in February, but has kept the drone relatively under wraps for months, in preparation for its big debut at Comic-Con International.

"He flies great and is a crowd favorite every time he flies," he says.

The Peanuts Movie opens Nov. 6. Comic-Con kicks off today with Preview Night, and continues through Sunday.

(via Mental Floss)