Well, there's always Starmada, which ports to aeronefs pretty well in my experience. Needs some altitude rules added, but that's easy enough. Come to think of it, the (very simple) altitude system in Dropfleet Commander might be useful. Treat "atmosphere" as "right on the deck amongst the church steeples" and low and high orbits as varying conventional flight levels and you'd have something there.
Look forward to hearing a review and some battle reports on Imperial Skies when you folks get some games in.