But that's already how landing fees work for rental aircraft--the fee is
charged to the owner, on the basis of the tail number. If the owner is an
FBO, then the FBO in turn charges the renter who had the plane when the fee
was incurred. It doesn't seem very difficult.

This doesn't seem difficult compared to a fuel tax? Surely there must
be some political hack who is trying to carve out lifetime employement
for his children. I can just imagine the entire building with hundreds
and hundreds of gov't accounting types charging aircraft owners for
their usages, along with accountants at FBOs trying to figure out who
flew at 1pm and who flew at 2pm. Its just hard to imagine that anyone
finds this "easier* than a fuel tax.

-Robert