Armitage Airplane Model with Centrifugal Propulsion

[hesham]

Hi,

here is an Airplane Model with a centrifugal propulsion designed by Mr. Armitage,page
35;

https://books.google.com.eg/books?id=grephwIkC90C&printsec=frontcover&hl=ar&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false