LNH/LNHY/LNH20: Airship-ness

[Saxon Brenton]

These days we're faceciously advised that when we find 
ourselves in another universe that we should look up 
and count the airships.
 
So.  I have a scene in mind where I have a throwaway 
reference to the relative levels of airship-ness between 
Looniearth-A, Looniearth-Y and Looniearth-20 for a 
viewer standing in downtown Net.ropolis. 
 
Looniearth-A I'm pretty sure is moderate-to-high level 
airship-ness, because I've referred to the use of 
airships being used for crosstown bus routes in 
_Limp-Asparagus Lad_.
 
Does anyone have any recollections (or just gut 
feelings) on airship-ness on Looniearth-Y and 20?
 
---
Saxon Brenton
Comic-book Dave of the Future Guys From The Past