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There is no engine connected to the blades, it is an autogyro. They are not so uncommon here in Europe, most of them I have seen has been home-build.

Off-topic: some UAV prototypes developed in Europe during the 80s and the beginning of 90s was of the type autogyro, because of its simplicity and short take-off and landing distances.

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For those interested, there is no engine connected to the blades while in flight. Most gyros have is a linkage called the pre-rotator with a clutch that you engage while stationary on the ground. This allows you to get the rotor to about two thirds of the speed needed for take off at which point you release it, and then do a take off roll to build speed and rotor speed.

This is also how the UAVs in the 90s did it too, but with a screwdriver instead.

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