Thanks, now if I could just find a way to actuate the air brake I'd be in good shape.........................
Click on the link below and have a look at this video clip of the '55 Le Mans race (you can skip the accident scene in the middle). That airbrake (or was it a "wing"?) was really in a class by itself. Too bad that the accident at Le Mans took Mercedes out of motor racing for the next, roughly, 3 decades. They were, technologically, in many ways, way ahead of their time.
Allan