You just THOUGHT your cars were expensive

and contra props. I guess you understand the shutter speed of the camera is giving you the wrong view of the props

You mean counter rotating prop's? I gotta tell ya know, that was one hell of an idea done to the aeroplanes back in the day. Brilliant!

Here is a good look at another without a cowl and the props exposed.

[ame="http://www.youtube.com/watch?v=0n31Ku-y7jA&feature=related"]Starting Mk 47 Seafire. - YouTube[/ame]