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Goddard's military rocket

Not all of Goddard's early work was geared toward space travel. As the United States entered World War I in 1917, the country's universities began to lend their services to the war effort. Goddard believed his rocket research could be applied to many different military applications, including mobile artillery, field weapons and naval torpedoes. He made proposals to the Navy and Army. No record exists in his papers of any interest by the Navy to Goddard's inquiry. However, Army Ordnance was quite interested, and Goddard met several times with Army personnel.

During this time, Goddard was also contacted, in early 1918, by a civilian industrialist in Worcester about the possibility of manufacturing rockets for the military. However, as the businessman's enthusiasm grew, so did Goddard's suspicion. Talks eventually broke down as Goddard began to fear his work might be appropriated by the business. However, an Army Signal Corps officer tried to make Goddard cooperate, but he was called off by General George Squier of the Signal Corps who had been contacted by Secretary of the Smithsonian Institution, Charles Walcott. Goddard became leery of working with corporations and was careful to secure patents to "protect his ideas." These events led to the Signal Corps sponsoring Goddard's work during World War I.

Goddard proposed to the Army an idea for a tube-based rocket launcher as a light infantry weapon. The launcher concept became the precursor to the bazooka. The rocket-powered, recoil-free weapon was the brainchild of Goddard as a side project (under Army contract) of his work on rocket propulsion. Goddard, during his tenure at Clark University, and working at Mount Wilson Observatory for security reasons, designed the tube-fired rocket for military use during World War I. He and his co-worker Clarence N. Hickman successfully demonstrated his rocket to the U.S. Army Signal Corps at Aberdeen Proving Ground, Maryland, on November 6, 1918, using two music stands for a launch platform. The Army was impressed, but the Compiègne Armistice was signed only five days later, and further development was discontinued as World War I ended.

The delay in the development of the bazooka and other weapons was a result of the long recovery period required from Goddard's serious bout with tuberculosis. Goddard continued to be a part-time consultant to the U.S. Government at Indian Head, Maryland, until 1923, but his focus had turned to other research involving rocket propulsion, including work with liquid fuels and liquid oxygen.

Later, the former Clark University researcher Clarence N. Hickman and Army officers Col. Leslie Skinner and Lt. Edward Uhl continued Goddard's work on the bazooka. A shaped-charge warhead was attached to the rocket, leading to the tank-killing weapon used in World War II and to many other powerful rocket weapons.