Starting late last night, whenever I went to a page, it kept refreshing. Couldn't post a couple of times. Still doing it this A.M.. As you can see, I have two other tabs open and no problem...
The one on the right is still refreshing as I type this, about 5min. after the capture.
Not sure what the deal is here, whether it's read only or downloadable. Lots of other modeling stuff as well...https://archive.org/details/texts?and=∧=aircraft
Type "aircraft" into the search box then scroll down on the right. For some reason, I can't post the direct link to the modeling...
All sorts of stuff here....https://archive.org/details/texts?and=aircraft&sort=-downloads&page=2
Type "aircraft" into the search box. For some reason I can't post a direct link to the aircraft section
Though I have seen ads on the site when I'm not logged in, this is the first one and only one I've seen when I've been logged in...