And now, a word from the Editing Team:
"You're quite right that the word "hovercraft" is an anachronism, which is annoying that we missed that. The foundational idea is basically okay: Tsiolovsky did indeed conceptualize a craft floating over projected air (for want of a more technical phrase) in the late `20s. And, more directly inspirational was the Austrians' Luftkissengleitboot, though it never saw action.
We also consulted Amazing Stories, and there is no DIY aspect of that magazine at all- we used it here for inspiration (a bit too strongly, we might add.)
You *could* say that we're positing that, after the appearance of the Morganas and Belles, nautical technology and innovations became much sexier for nerd culture. In our timeline, American hovercraft research (though more commonly called "Levitation Engines" in pop culture) was kickstarted by the short-lived but significant fear that Morganas were spreading a kind of acidic algae in the ocean waters, making it generally unsafe for traditional boats.
But...probably the best thing to do is remove the word 'hovercraft' and rework the inspiration slightly so that Lexington can have her fun.
Great comments (and research!)"