development after the Opel RAK break-up on his own. In collaboration with Heylandt-Werke, he also was focusing his efforts on liquid-fuelled rockets. Their...
22 KB (3,155 words) - 23:28, 26 March 2024
development after the Opel RAK break-up on his own. In collaboration with Heylandt-Werke, he also was focusing his efforts on liquid-fuelled rockets. Their...
27 KB (3,587 words) - 05:05, 26 March 2024