I recently came across these sites that may be of interest to you. The propeller one is primarily one of the history of old props. The other is a unique site showing the inner-working of various types of aircraft engines (and others).
>
>Carl Carson
>
-for props www.woodenpropeller.com
-for engines www.keveney.com
-for props www.woodenpropeller.com -for engines www.keveney.com
>
>Carl Carson
>
-for props www.woodenpropeller.com
-for engines www.keveney.com
-for props www.woodenpropeller.com -for engines www.keveney.com