What's a good system for a campaign centered on aerial combat?

[-Sentinel-]

I would like examples of RPG systems that have rules for piloting, dogfights, and the likes. Doesn't really matter if the system is meant for a World War One setting or futuristic space combat; any system can be tweaked and adapted.

[Friv]

If you have a copy of Fate Core, I would suggest taking a look at Kreigzepplin Valkyrie, which does a cool post-WWI flying aces game. Plus it's part of a bundle with some other neat settings.

(And if you don't have Fate Core, it's PWYC.)

[dps]

There's an old WWI system called Dawn Patrol; it's been a long time since I've looked at it, but my memory is that it was pretty good.