Aspin Rotary Engine
This is all about Frank Aspin and his ideas for a rotary valve engine.
I place here the material that I have located. Most of it dates from 1935 - 1945.
All this material has been published, and the passage of time has left it free of copyright (I think)
1943 Motor Transport
1944 Yachting World
1961 Royal Engineers journal
The following material is taken from long out of print books. If any copyright still exists, and the owner
contacts me, then I will remove it.
Some Unusual Engines by L J K Setright
Rotary Valve Engines by M C I Hunter