If Game of Thrones has been a coming-of-age story for any character, even more than Jon, Sansa, or Arya, it’s one about Daenerys’s dragons. Between Season 1 and Season 6, Rhaegal, Viserion, and the fierce Drogon have evolved from cute little scamps to giant, city-destroying powerhouses. And in the upcoming seventh season, they will be roughly the equivalent of fire-breathing airplanes.

“The dragons this year are the size of 747s,” Game of Thrones director Matt Shankman said in a recent interview. “Drogon is the biggest of the bunch — his flame is 30-feet in diameter!” Shankman is reportedly directing the fourth and fifth episodes of the seven-episode seventh season. Intriguingly, he’s a newbie to the world of Game of Thrones, but he’s coming from It’s Always Sunny in Philadelphia, which the Game of Thrones showrunners are such big fans of that they once wrote an episode.

While this doesn’t necessarily mean that these 747-sized Dragons will partake in a “Nightman cometh” musical, it does mean they’ll get a new touch.

Spoiler alert — according to set report leaks, Viserion will be killed and resurrected as the Night King’s blue fire-breathing ice dragon. If that’s true, Season 7 is shaping up to be the most dragon-heavy season of all.

Game of Thrones Season 7 premieres July 16 on HBO.

Photos via HBO