sentences:  As the U.S. became aware that Nazi Germany had developed the V-2 rocket, the military—following recommendations from von Kármán based upon research using British intelligence—placed a renewed impetus on its own rocket research, reinstating Qian to the GALCIT project.They gave the Group a $3 million grant to develop rocket-based weapons, and the Group was expanded and renamed the Jet Propulsion Laboratory (JPL).By this point the Navy were ordering 20,000 JATOs a month from Aerojet, and in December 1944 Haley negotiated for the company to sell 51% of its stock to the General Tire and Rubber Company to cope with the increased demand.