For any of you who have been to the movies and seen the dapper pilots of WWI sitting in the smoothly idling Sopwith Camel prepering to take on the Red Baron, here's the real story.
The point of this video was to show a Camel and a Spitfire flying together in formation, the Spitfire near stalling, flaps down, and the Camel running wide open. Interesting to note is the Camel's throttling system. The carburetor had no adjustment, it was wide open only, and speed was controlled by cutting the ignition on and off.
Makes for an interesting flying experience to say the least.
Found here at Theo Spark and worth repeating.