Early Rockets Modern rockets were first designed and built by independent scientists and rocket clubs on three different continents, almost simultaneously The first modern rocket was developed by the same scientist that launched the first liquid fuel rocket – Robert Goddard March 16, 1926 Robert Goddard launched the world's first liquid fueled rocket, a gasoline and liquid oxygen engine Shown on the right held upright by an external tube-frame structure Early Rockets Many of Goddard’s rocket designs and patents were adopted by: Nazis for their V-2 NASA Guided missile and large rocket manufacturers Goddard made many of the greatest advances in modern rocketry Early Rockets Goddard’s modern rocket advances included: High-pressure turbopump propellant injection Regenerative cooling (fuel/oxidizer used for cooling engine heats propellants for greater energy release when combusted) Inertial (gyroscopic) guidance during launch and flight Early Rockets Goddard’s advances in rocketry garnered little interest in the U.S. military, but did attract German weapons planners who copied many of his advances Goddard completed his career designing rocketassisted takeoff boosters for the U.S. Navy Early Rockets A decade after Goddard’s first liquid fuel rocket launch, the Guggenheim-funded aeronautical laboratory (GALCIT) at Caltech (California Institute of Technology) began a propulsion and rocket research group inspired by Theodore von Kaman and Caltech graduate students Early Rockets JPL was founded by Von Karman and a number graduate students at Caltech/GALCIT including: Frank Malina Weld Arnold Apollo M. O. Smith Tsien Hsue-shen Jack Parsons Edward Forman Tsien Hsue-shen who helped design the early JPLArmy missiles, was given the technical rank of colonel and sent to Germany with von Karman at the end of WW-II to evaluate the prized Nazi’s V-2 missile and program Early Rockets The GALCIT rocket experiments included liquid fuel motors first launched in 1938 Von Kaman arranged for funding by the U.S. Army in 1939 for the GALCIT rocket team to develop jet-assisted takeoff (JATO) rocket motors The new JATO rocket effort was converted into the Aerojet Corporation that is still in existence Early Rockets A separate Army contract for small missiles was arranged by von Karman through the Caltech university in 1943 This was the birth of the Jet Propulsion Lab (JPL) Today, JPL designs and operates a number of exploration spacecraft and programs for NASA Early Rockets JPL’s Army missiles were solid and liquid rockets that began with the “Private” solid fuel 2-stage rocket first launched in 1944 16 km (10 mi) range Tiny Tim solid fuel 1st stage (air-to-ground missile shown on the right) JATO solid fuel booster 2nd stage Early Rockets JPL’s “Corporal” was the first American guided missile started in 1945 but did not complete testing for deployment as a surface-surface missile until 1955 Weight 1,342 kg (2,960 lb) Range 139 km (8 4mi) WAC Corporal was a 2-stage sounding rocket that was the first American rocket to reach space altitudes Tiny Tim 1st stage Later launched on a V-2 booster to reach 250 mi altitude at speeds > Mach 5 (Bumper rocket) Early Rockets JPL’s “Sargent” solid fuel surface-tosurface missile was a longer-range missile designed to replace the Corporal Weight 4,530 kg (10,000 lb) Range 135 km (84 mi) Deployed in Europe in 1963 as a tactical weapon Scaled-down Sargent solid fuel motors were used for the 2nd, 3rd, and 4th stages of the Jupiter-C rocket that launched Americas first satellite – Explorer 1 Early Rockets By 1944, the Germans had developed and launched the first long-range guided missile the V-2 under the direction of Wernher von Braun Von Braun and the German rocket teams had used many of the advances of Robert Goddard a decade earlier to help with the 320 km (200 mi) range V-2 As the Nazis faced defeat in 1945, von Braun and many of his team members surrendered to the Americans in Bavaria, and were shipped to the U.S., along with many of the remaining V-2s Early Rockets Redstone Von Braun and the German missile engineers were attached to the U.S. Army Ballistic Missile Agency (ABMA) and soon converted their V-2 design into the ABMA’s Redstone missile, first launched in 1954 Similar ballistic missile programs were developed in the USSR in the 1950s using captured V-2s and German engineers Both the JPL and the ABMA were transferred to NASA in 1958 Early German Rockets Early Rockets German liquid fuel rocket experiments began in an amateur club called the Verein für Raumschiffahrt, or VfR (Society for Space Travel) organized in 1927 Founded by Johannes Winkler, Max Valier, and Willy Ley, the VfR conducted the first successful German liquid fuel rocket test in 1930 Members included Wernher von Braun, Walter Hermann, Eugen Sanger, and Herman Oberth Early Rockets The VfR club was disbanded in 1932 In 1934 von Braun and several of the members joined Colonel Walter Dornberger’s effort to develop a longrange missile that would become the A-4 The A-4 was renamed the V-2 after missile production began After WW-II, the successful and effective V-2 would become the prototype for the first long-range missiles for both the U.S. and the Soviet Union Early Rockets October 3rd, 1943 - 1st successful launch of the German A-4 by Wernher von Braun's missile team Weight 12,500 kg (28,000 lb) Payload 1,000 kg (2,200 lb) of explosives Range 320 km (200 mi) Ultimately, the V-2 changed the entire character of military strategic weapons V-2 V-2 Early Rockets Alcohol fuel (ethanol 75%, water 25% for cooling and stability) Liquid oxygen oxidizer Employed double-wall combustion chamber Inner cavity allowed fuel to circulate to cool combustion chamber 55,000 lbf thrust (24,958 N) Early Russian Rockets Early Rockets Russia’s rocket programs also began with private rocket clubs that launched the first liquid fuel rocket inside the Soviet Union in 1933 Neither had government sponsorship, but were soon recognized as important for future weapons and were taken over and combined into a military rocket design bureau RNII GDL was the engine design club GIRD was the rocket design club The two most important members that later directed the Soviet Space Race efforts were Sergi Korolev (GIRD) and Valentin Glushko (GDL) Early Rockets The combined design group known as RNII began advanced rocket-powered weapons programs in 1936 Stalin’s cruel and senseless purge of anyone perceived as a threat to his absolute authority set back the USSR in the years before WW-II (1937-38) Stalin’s purges consisted of the murder, assassination or incarceration of: any political adversary 60% of the senior military officers engineers and scientists, even those related to developing military weapons, including aircraft and missiles Early Rockets The near-defeat of the USSR by the Germans in WW-II forced Stalin to end his murderous purges and rebuild the military and weapons industry Rocket designers Korolev and Glushko were released from prison, then sent to Germany following the end of WW-II to study the Nazi V-2 technology and organize the return of the missiles, and the scientists and engineers Early Rockets The first advanced Soviet rocket was a copy of the German V-2 rocket designated R-1 First launched in 1948 The Soviet R-2 soon followed with greater range and an increase in the payload compared to the R-1 R-2 prototype rockets were first launched in 1949 Early Rockets The Soviet R-5 was their first launcher not based on the V-2 basic design R-5 was the first to be able to carry their early atomic bomb Soviet advances were rapid because of Stalin’s desire to quickly advance long-range surface-to-surface weapons U.S. chose to advance military aircraft and flight weapons instead Early Rockets Efforts to develop missiles for submarine launched warheads and intermediate-range boosters were redirected in the early 1950s to build an intercontinental ballistic missile (ICBM) that could deliver atomic warheads to the United States Korolev was assigned the task of building Russia’s long-range nuclear-tipped ICBM in 1954 Engines for the R-7 ICBM were designed and built by Glushko’s design bureau Early Rockets The Soviet R-7 ICBM was designed specifically to deliver an atomic bomb as far away as North America R-7 program officially approved in 1954 Launched successfully in 1957 Range 8,000 km Payload 5,300 kg 2-stage liquid fuel booster R-7 Early Rockets The Soviet R-7 and its successors have been used to launch: Sputniks Yuri Gagrin and the first cosmonauts Luna lunar missions Flights to Mars and Venus Crews to their early space stations Still used today to launch satellites, the Soyuz crew vehicles to the International Space Station, and the Progress cargo vehicles Early Rockets By 1957, the U.S. had only the 300 km range Redstone Following the launch of the second Soviet Sputnik in 1957, a concerted effort was made to build larger rockets and complete Atlas, the first American ICBM Other boosters included: Thor Jupiter Delta (augmented Thor) Titan (ICBM) Saturn (turned over to NASA’s civil projects) Most of these were later converted to civil launchers Early Chinese Rockets Early Rockets The Chinese space program was started by one of the most gifted rocket designers in the early age of modern rockets - Tsien Hsue Shen (Qian Xuesen) • Co-founder of the Jet Propulsion Lab in 1943 • Helped design the early U.S. Army rockets (Private, Corporal, Sargent) Early Rockets • Tsien Hsue Shen received a temporary rank of Colonel in the U.S. Air Force in 1945 to survey the German rocket engineers responsible for designing and building the V-2 • Returned to MIT in 1946 • Began teaching at Caltech and publishing space flight research articles in 1950 Early Rockets • Caught in Senator Joseph McCarthy political purges in 1950 • Released from house arrest in 1955 and immediately returned to China • Started China’s first missile development efforts as the Fifth Academy research facility in 1955 • Considered the father of Chinese rocketry Early Rockets In 1958, the USSR and China agreed to technology exchange that included the R-2 short-range ballistic missile China’s DF-1 (DF for Dong Feng “East Wind”) was a reverseengineered Soviet R-2 first launched in 1960 China’s first intermediate-range ballistic missile (IRBM), the DF-2, was first launched in 1964 Early Rockets Chinese long-range rocket development continued with the DF-3 and DF-4 New generation of launchers were designed for heavier payloads based on the DF-4 named Long March (Chang Zheng) Long March booster was used to put China’s first satellite in orbit in 1970 Chinese Rockets China’s manned space program began in 1992 using a Long March booster and a Shenzhou spacecraft that is based on the Russian Soyuz crew vehicle First manned mission was Shenzhou V launched in October, 2003 Questions?