 The first V-2 launch there was on April 16, 1946 but reached only 3.4 miles' altitude.The maximum altitude reached by a Project Hermes V-2 was 114 miles achieved by V-2 #17 on 17 December 1946.There were 58 standard V-2s, 6 Bumper" V-2s with a WAC Corporal second stage, and 4 drastically modified V-2s launched as Hermes IIs (Hermes B) by Project Hermes.