Question 706: You too?

n the late 1920s, a young Wernher von Braun acquired a copy of Hermann Oberth's book, Die Rakete zu den Planetenräumen (The Rocket into Interplanetary Space). Starting in 1930, he attended the TU Berlin, where he assisted Oberth in liquid-fueled rocket motor tests. Von Braun was working on his creative doctorate when the Nazi Party gained power in Germany. An artillery captain, W. Dornberger arranged an Ordnance Department research grant for von Braun, who from then on worked next to Dornberger's existing solid-fuel rocket test site at Kummersdorf Von Braun's thesis, Construction, Theoretical, and Experimental Solution to the Problem of the Liquid Propellant Rocket (dated 16 April 1934), was kept classified by the German army and was not published until 1960. By the end of 1934, his group had successfully launched two rockets that reached heights of 2.2 and 3.5 km

At the time, Germany was highly interested in American physicist Robert Goddard's research. Before 1939, German scientists occasionally contacted Goddard directly with technical questions. Von Braun used Goddard's plans from various journals and incorporated them into the building of the___________

Following successes at Kummersdorf with the first two _______, von Braun and Walter Riedel began thinking of a much larger rocket in the summer of 1936, based on a projected 25-metric-ton-thrust engine..

And this was __X___

ID X and the blank.