Consider how idiotic it would be to have separate government-administrations for aircraft & spacecraft .. who fly through airspace on the way up, and down!
The correct divisions for transport should be something sorta-like:
Sky, space, mil
Sky, space, civilian, research
Sky, space, civilian, commercial
Sky, space, civilian, hobby
Sky, air, mil
Sky, air, civilian, research
Sky, air, commercial, high altitude ( requiring a radar-altimeter )
Sky, air, commercial, below that
Sky, air, general aviation
Sky, air, sailplanes
Sky, air, powered 'chutes, etc
Sky, air, unpowered 'chutes
Waters, mil
Waters, civilian, research
Waters, powered
Waters, sail
Waters, human-powered
Land, mil
Land, Powered
Land, e-assist
Land, human-powered
...or something like that.
( the different powerplants should have their own categories of regulations, but under the same umbrella regime,
sort-of a fractal-system of legislation, for clarity,
like programming-modules, see?
Limit scope to what that module covers. )
It is best to have the right granularity:
"Aviation" is FAR too coarse a granularity.
I want AviationGovt as a separate category, so it is not cluttering-up other views, AND so it is easily-findable, see?
Same with GeneralAviation, or RegionalAviation ( which includes many issues that the big aerodromes don't have, like unpaved strips, or weird weather-conditions among remote places, or whatever, and oft have older aircraft, too )...
on LemmyFly.org I'd think it sanest to have a
Space
community, possibly separate ones for
SpaceLaunches
SpaceViewing ( people usually do more viewing than flying, right?
Astronomy is a "gateway drug" for some cubesat freaks : )
Space-Policy ( legal, international, politics, etc )
THESE ARE JUST IDEAS
so dice 'em up however you want, eh?