Out of date charts on Airnav

John T writes:

I don't know of any official sources for chart downloads. Even if there
were, printing them would be a beast of a task - especially for any
significant XC.

You could read them on a laptop, which would have the added advantage
of illumination at night.

However, I think all the sectionals are prepared by hand, and they
depend on physical techniques such as overprinting, so you probably
won't see PDFs any time soon. Still, it would be nice to be able to
download scans, or anything. And I don't see why they wouldn't be
free, since they are government produced and carry no copyright.

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