Oh, yes, that book was great. The helicopter one is pretty unique, and there was another one that is VERY simple to make, and you end up making a flying-ring, and that plane actually performed beautifully. It flew straight and fast; wasn't much for long slow glides, but it never failed to impress people - especially with it's simplicity of construction.
It featured some "match rockets" too that probably would be a hard-sell to an editor/publisher these days....
Can't believe I've never heard of those, had to look them up. Those would have been very fun as a kid. I might make some now, thank you
I wish my son was just a little older so I had an excuse to find a copy of that book. It looks amazing. I'll save the link for a few years from now!