I read an article in Air and Space Smithsonian about 20 years ago all about the fascinating project from shoe insert to Flying Pancake.
When I was about 8 an Aunt took me and my brother to the Science Museum and told me that Pterodactyl designer Prof Hill was a relative of ours, will have to check ancestry sometime! A Pterodactyl and an Autogyro were used when setting up and calibrating Britain's radar defence system before WW2.
Radical then, but the basic shape is now so familiar thanks to hang gliders
The Westland Hill Pterodactyl:
https://www.youtube.com/watch?v=5W1pmqLHYm4