v2_3 Published on March 23, 2018 in Wernher von Braun: 23 March 1912–16 June 1977Full resolution (1374 × 1020) ← Previous Next → A-4 Number 3 is prepared for launch at White Sands, new mexico, 10 May 1946. With a burn time of 59 seconds, the rocket reached an altitude of 70.9 miles and traveled 31 mils down range. (The Space Race – Rockets)