Steve Foley wrote:
I disagree. If you look at a sectional, you will see many different symbols
representing the various kinds of airports.

The different symbols that come to mind a

Color coded - blue vs magenta.

A solid circle vs an empty circle, indicating paved vs unpaved

With 'nubs' vs without 'nubs', indicating fuel available vs fuel not
available.

Therefore, I submit there are eight different 'kinds' of airports:

Towered, paved, with fuel.
Towered, paved, without fuel.
Towered, unpaved, with fuel.
Towered, unpaved, without fuel.
Non-towered, paved, with fuel.
Non-towered, paved, without fuel.
Non-towered, unpaved, with fuel.
Non-towered, unpaved, without fuel.

Unless you consider lighted vs unlighted, which would make it 16 kinds.

Or maybe open vs closed - making it 32.



Private vs public would make it 64.

Airports with runways longer than 8069ft would make it 128 different
types.

If you consider heliports, gliderports, balloonports, seaplane base
etc.. now you have something like 4096 different types of airports.