On 2006-03-15, Steve Foley wrote:
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.

On a point of pedantry - making it 18. A closed airport will neither be
lit nor towered nor fuel available by definition :-)

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