I think there is an extra zero there. It should read 4,500 to 5,000 Euros per hour.
For example, Gripen's operating cost per hour is supposed to be about US $ 4,700 / hour (July 04, 2012).
China's first ARM breaks cover:
By Robert Hewson
November 29, 2012: A new air-launched anti-radiation missile (ARM) is being promoted for export by the Aviation Industry Corporation of China (AVIC). The LD-10 (Lei Dian = Thunderbolt) is a product of the Luoyang Optoelectro Technology...