Okay, this one has me floored. I wrote a Teemings piece a couple of years ago about the heavier-than-air steam-powered airplane that John Stringfellow built and flew several times decades before the Wright Brothers (or any other claimants), but his was a “model” size airplane, not carrying people.
http://www.pursam.org/teemings/issue15/calmeacham.html
But I’ve lived in the Boston area longer than anywhere else, and just stumbled across this yesterday. Pepper Mill used to work just down the street from the Old North Church, which we’ve visited more than once, and I don’t recall eveer hearing of this before:
I can’t find anything else about this. It might not exist. Anyone else ever hear about this, or know more?
The best I can suggest is that, if this is for real, Childs demonstrated some sort of glider or parachute.
Ever see the Aeronautical Oddities clip of the guy jumping off the bridge with bat wings strapped to his arms? Sez here that’s pretty much what it was: