How a Sopwith Camel rotary engine is controlled

This is a short cut from a very good video made by Andy Lambert. Please watch his full video of "The Brooklands Sopwith Camel engine runs" http://www.youtube.com/watch?v=VtMepZkJiPk, and other of his videos. The reason for taking this liberty is to share this short cut-out for discussion in another context with others interested in the working of rotary engines.

Видео How a Sopwith Camel rotary engine is controlled канала Leif Ohlsson