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![A Hermes rocket.](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Hermes_A-1_Test_Rockets_-_GPN-2000-000063.jpg/300px-Hermes_A-1_Test_Rockets_-_GPN-2000-000063.jpg)
The first Hermes A-1 test rocket, fired at White Sands Proving Ground on May 1, 1950. Built by General Electric based on the Wasserfall surface-to-air missile, the Hermes A-1 was capable of reaching an altitude of 150 km.