The Germans did better...
http://en.wikipedia.org/wiki/Focke-Wulf_Fw_61Indoor flight by a female pilot in 1938.
And Sikorski had a heli in 1940 (prototype was earlier).
So the magazine was a bit behind current technonogy.
But it's not uncommon for magazines or even SF novels
to feature future tech, that's really current, just not widely known.
It looks like a magazine worth reading. Oh, nostalgia isn't what it once was....
Cheers
Erik