Tag Archives: Saturn IB

17 July 1975

Apollo CSM-111 in orbit, as seen from Soyuz 19, 17 July 1975. (NASA )

At 12:20 UTC, 15 July 1975, Soyuz 19 launched from Gagarin’s Start at Baikonur Cosmosdrome, Kazakh SSR with Alexei Leonov and Valeri Kubasov, both on their second space flights. The launch vehicle was a Soyuz-U three-stage rocket.

At 19:50 UTC, 15 July 1975, Apollo ASTP lifted off from Launch Complex 39A, Kennedy Space Center, Cape Canaveral, Florida. The crew was Thomas P. Stafford on his fourth space flight, Vance D. Brand on his first, and Donald K. “Deke” Slayton also on his first. The launch vehicle was a Saturn IB.

At 16:19:09 UTC, 17 July 1975, the two orbiting spacecraft rendezvoused in orbit and docked. Using a Docking Module airlock, the two crews each opened their spacecraft hatches and shook hands. The two ships remained joined for 44 hours, separating once for the Soyuz crew to take its turn to maneuver for docking with the Apollo Command and Service Module.

The Apollo command module from the mission is on display at the California Science Center in Los Angeles. The descent module of Soyuz 19 is on display at the RKK Energiya museum in Korolyov, Moscow Oblast, Russia.

This was the last flight of the Apollo spacecraft.

Soyuz 19 in orbit, as seen from Apollo CSM-111, 17 July 1975. (NASA)

© 2015, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

14 May 1973, 17:30:00 UTC, T plus 000:00:00.22

SA 513/Skylab 1 (SL-1) launch from LC 39A, 17:30:00 UTC, 14 May 1973. (NASA)

14 May 1973: At 12:30:00 p.m. Eastern Standard Time, America’s first orbital space station, Skylab, was launched by a Saturn V Launch Vehicle, SA-513, from Launch Complex 39A at the Kennedy Space Center, Cape Canaveral, Florida. First motion was detected at T + 000:00:00.22.

After first stage separation, the S-IC/S-II interstage connector failed to separate from the second stage. because of this, orbital insertion occurred at T + 000:09:59.0; 0.64 seconds later than planned, and 0.6 meters per second faster than predicted. The S-II stage followed the Skylab into Earth orbit. Skylab’s orbit was almost perfectly circular, with an apogee of 234.2 nautical miles (433.7 kilometers), and perigee of 233.0 nautical miles (431.5 kilometers). The orbital period was 93.23 minutes, with a velocity of 17,111 miles per hour (27,537 kilometers per hour).

Skylab was unmanned at launch. Three 3-man crews were carried to the station aboard Apollo command/service modules launched by the smaller Saturn IB rocket.

Skylab’s mission was to demonstrate that humans could live and work in orbit for extended periods of time, and that they could also perform useful work and research. The first crew had to make repairs in orbit to extend a damaged solar array and to use a spare solar panel as a shade to prevent sunlight from overheating the station. This was the first orbital repair mission. Astronauts occupied Skylab for 171 days, 13 hours and conducted over 300 scientific projects.

Cutaway illustration of Skylab. (NASA)
Cutaway illustration of Skylab. (NASA)

The Skylab was built from an empty Saturn V third stage, S-IVB number 213, modified by McDonnell Douglas. The launch vehicle consisted of the first two stages of a Saturn V rocket, an S-IC first stage and an S-II second stage.

The total vehicle weight at engine ignition was 6,297,336 pounds (2,856,424 kilograms). Post-launch analysis determined that the five Rocketdyne F-1 engines of SA-513’s S-IC first stage generated 7,551,000 pounds of thrust (33,588.52 kilonewtons) at Sea Level.

The first stage was designated S-IC. It was designed to lift the entire rocket to an altitude of 220,000 feet (67,056 meters) and accelerate to a speed of more than 5,100 miles per hour (8,200 kilometers per hour). The S-IC stage was built by Boeing at the Michoud Assembly Facility, New Orleans, Louisiana. It was 138 feet (42.062 meters) tall and 33 feet (10.058 meters) in diameter. Its empty weight was 290,000 pounds (131,542 kilograms). Fully fueled with 203,400 gallons (770,000 liters) of RP-1 and 318,065 gallons (1,204,000 liters) of liquid oxygen, the stage weighed 5,100,000 pounds (2,131,322 kilograms).

The S-IC was propelled by five Rocketdyne F-1 engines, producing 1,522,000 pounds of thrust, each, for a total of 7,610,000 pounds of thrust at Sea Level. These engines were ignited seven seconds prior to lift off and the outer four burned for 168 seconds. The center engine was shut down after 142 seconds to reduce the rate of acceleration. The F-1 engines were built by the Rocketdyne Division of North American Aviation, Inc., at Canoga Park, California.

The S-II second stage was built by North American Aviation at Seal Beach, California. It was 81 feet, 7 inches (24.87 meters) tall and had the same diameter as the first stage. The second stage weighed 80,000 pounds (36,000 kilograms) empty and 1,060,000 pounds loaded. The propellant for the S-II was liquid hydrogen and liquid oxygen. The stage was powered by five Rocketdyne J-2 engines, also built at Canoga Park. Each engine produced 232,250 pounds of thrust, and combined, 1,161,250 pounds of thrust.

The unmanned space station’s orbit decayed and it reentered on 11 July 1979. It broke up and parts landed in the Indian Ocean and near Perth, Australia.

Skylab in Earth orbit over the Amazon River Valley, 28 July 1973. (NASA)

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

23 March 1912–16 June 1977

Wernher von Braun, Director, Marshall Space Flight Center (NASA)
Dr. Wernher von Braun, Director, Marshall Space Flight Center, 1 May 1964. (NASA)

23 March 1912: Wernher Magnus Maximilian Freiherr von Braun, rocket engineer, was born at Wyrzysk, Province of Posen, in the German Empire, in what is now Poland. He was the second of three children of Magnus Alexander Maximillian von Braun, head of the Posen provincial government, and Emmy von Quistorp.

Wernher von Braun originally wanted to be a musician and composer, having learned to play the cello and piano at an early age. After reading a speculative book on space flight, though, his interests shifted.

In 1929, the 17-year-old von Braun joined Verein für Raumshiffahrt, the German rocketry association. He worked with Hermann Oberth in testing liquid-fueled rockets, based on successful rockets designed by Dr. Robert H. Goddard in the United States.

Rudolf Nebel (left) and Wernher von Braun with small liquid-fueled rockets, circa 1930. (Unattributed)
Rudolf Nebel (left) and Wernher von Braun with small liquid-fueled rockets, circa 1930. (Unattributed)

Von Braun graduated from Technische Hochschule Berlin in 1932, with a degree in mechanical engineering (Diplom-Ingenieur). Two years later, he received a doctorate in physics (Dr. phil.) at Friederich-Wilhelm University of Berlin. He also studied at ETH Zürich.

In Germany before World War II, Dr.-Ing. von Braun worked on the problems of liquid-fueled rockets and developed the Aggregat series of rockets, including the A4, which would become known as the V-2 (Vegeltungswaffe 2) military rocket. The German Army’s Ordnance Department gave von Braun a grant to further study liquid-fueled rockets, which he pursued at an artillery range at Kummersdorf, just south of Berlin. As rocketry work expanded, the tests were eventually moved to the Peenemünde Military Test Site on the island of Usedom on the Baltic coast, where von Braun was technical director under Colonel Dr. Ing. Walter R. Dornberger.

Wernher von Braun with a number of German officers at Peenemunde, March 1941. (Left to right) Oberst Dr. Walter Dornberger, General Friederich Olbricht, Major Heinz Brandt, von Braun; others not identified. (Bundesarchiv, Bild 146-1978-Anh.024-03/CC-BY-SA 3.0)
Prof. Dr.-Ing. Wernher von Braun with a number of German officers at Peenemünde, March 1941. (Left to right) Colonel Dr. Ing. Walter Dornberger (partially out of frame), General der Infanterie Friederich Olbricht*, Major Heinz Brandt, Prof. Dr. von Braun; others not identified. (Bundesarchiv, Bild 146-1978-Anh.024-03/CC-BY-SA 3.0) [*General Olbricht developed Operation Valkyrie, the plot to assassinate Hitler and overthrow the Nazi regime.]
Aggregat 4 prototype (probably V-3) ready for launch at Prüfstand VII, August 1942. (Bundesarchiv)

The first successful launch of the A4 took place 3 October 1942. By the end of World War II, Nazi Germany had launched more than 3,200 V-2 rockets against Belgium, England, France and The Netherlands.

As World War II in Europe came to a close and the collapse of Nazi Germany was imminent, von Braun had to choose between being captured by the Soviet Red Army or by the Allies. He surrendered to the 324th Infantry Regiment, 44th Infantry Division, United States Army in the Bavarian Alps, 2 May 1945.

Dornberger, Herber Axter, von Braun and Hans Lindenberg, 3 May 1945. (U.S. Army)
Major-General Dr. Ing. Walter R. Dornberger; Lieutenant-Colonel Herbert Axster, Dornberger’s chief of staff; Prof. Dr.-Ing. Wernher von Braun (with left arm in cast); and Hans Lindenberg, chief propulsion engineer; at Reutte, Austria, 3 May 1945. (Technician 5th Class Louis Weintraub, U.S. Army)

Under Operation Paperclip, Wernher von Braun and many other scientists, engineers and technicians were brought to the United States to work with the U.S. Army’s ballistic missile program at Fort Bliss, Texas, White Sands Proving Grounds, New Mexico, and the Redstone Arsenal, Huntsville, Alabama.

Sufficient parts and materiel and been transferred from Germany to construct more than one hundred V-2 rockets for testing at White Sands. Over a five year period, there were 67 successful launches, but it is considered that as much knowledge was gained from failures as successes.

Dr. von Braun with V-2 rocket compnents in Texas, circa 1945. (Unattributed)
Dr. von Braun with V-2 rocket components at White Sands Proving Grounds, New Mexico, 1 November 1946. (Thomas D. McAvoy)

In 1950, von Braun and his team were sent to Redstone Arsenal, Huntsville, Alabama, where they worked on more advanced rockets. The first production rocket was the short-range ballistic missile, the SSM-A-14 Redstone, which was later designated PGM-11. This rocket was capable of carrying a 3.8 megaton W39 warhead approximately 200 miles (322 kilometers) The first Redstone was launched at Cape Canaveral Air Force Station, 20 August 1953. Modified Redstone MRLV rockets were used to launch the first Mercury spacecraft with NASA astronauts Alan Shepherd and Gus Grissom. Von Braun later worked on the U.S. Army’s Jupiter-A intermediate range ballistic missile. A modified Jupiter-C was used to launch Explorer 1, the United States’ first satellite.

Explorer 1 launch, Launch Complex 26A, Cape Canaveral Air Force Station, 1 February 1958, 03:48:00 UTC. (NASA)
Mercury-Redstone 4 (Liberty Bell 7) launch at Pad 5, Cape Canaveral Air Force Station, 12 20 36 UTC, 21 July 1961. (NASA)

Wernher von Braun travelled to Germany in 1947 to marry his cousin, Maria Luise von Quistorp, and then returned to the United States. He became a naturalized citizen of the United States of America in 1955.

The von Braun family, circa 1955 (U.S. Army)
Prof. Dr. von Braun with his family, circa 1957. Left to right, Maria Luise von Braun, Margrit Cécile von Braun, Dr. von Braun and Iris Careen von Braun. (U.S. Army)

In 1960 von Braun and hist team were transferred from the Army Ballistic Missile Agency to NASA’s new Marshall Space Flight Center at Redstone Arsenal. He was now able to pursue his original interest, manned flight into space. Work proceeded on the Saturn rocket series, which were intended to lift heavy payloads into Earth orbit. This resulted in the Saturn A, Saturn B and the Saturn C series, ultimately becoming the Saturn V moon rocket.

With the Apollo Program coming to an end, Dr. von Braun left NASA in 1972. A year later, he was diagnosed with kidney cancer. Wernher von Braun died of pancreatic cancer, 17 June 1977 at the age of 65 years.

Apollo 4 Saturn V (AS-501) on the launch pad at sunset, the evening before launch, 8 November 1967. (NASA)

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

26 February 1966, 16:12:01 UTC, T minus Zero

Apollo-Saturn IB AS-201 launch from Pad 34, Kennedy Space Center, 26 February 1966. (NASA)
Apollo-Saturn IB AS-201 launch from Pad 34, Kennedy Space Center, 26 February 1966. (NASA)

26 February 1966: AS-201, a Saturn IB launch vehicle, carried the first complete Block 1 Apollo Command and Service Module on a 37 minute, 19.7 second unmanned suborbital test flight. Liftoff was at 11:12:01 a.m., EST, from Launch Complex 34 at the Kennedy Space Center, Cape Canaveral, Florida.

saturn-ib-config
Department of Special Collections, M. Louis Salmon Library, University of Alabama, via heroicrelics.org

This flight was a demonstration of the combined Apollo Command Module and the Service Module. The second production Apollo capsule, CM-009, and the first production service module, SM-009, were launched by the first Saturn IB, SA-201. The Apollo capsule reached a maximum altitude of 305.8 miles (492.1 kilometers) and landed in the Atlantic Ocean 5,267 miles (8,477 kilometers) from Cape Canaveral.

The flight was successful, though several problems occurred  These were identified and corrected on the following production vehicles.

The Saturn IB consisted of an S-IB first stage and an S-IVB second stage. The S-IB was built by Chrysler Corporation Space Division at the New Orleans Michoud Assembly Facility. It was powered by eight Rocketdyne H-1 engines, burning RP-1 and liquid oxygen. Eight Redstone rocket fuel tanks containing the RP-1 fuel surrounded a Jupiter rocket tank containing the liquid oxygen. The S-IB stage is 80 feet, 2 inches (24.435 meters) long, with a diameter of 21 feet, 5 inches (6.528 meters). The empty weight of this stage was 85,000 pounds (38,555 kilograms). Fully fueled, it weighed 498,099 pounds (225,934 kilograms). Total thrust of the S-IB stage was 1,600,000 pounds (7,117,155 Newtons) and it carried sufficient propellant for 2 minutes, 35 seconds burn time. This would lift the vehicle to an altitude of  37 nautical miles (69 kilometers).

The Douglas Aircraft Company-built S-IVB second stage was assembled at Huntington Beach, California. It was powered by one Rocketdyne J-2 engine, also fueled by liquid hydrogen and liquid oxygen. The S-IVB is 60 feet, 1 inch (18.313 meters) long with a diameter of 21 feet, 8 inches (6.604 meters). The second stage had an empty weight of 28,400 pounds (12,882 kilograms) and gross weight was 261,900 pounds (118,796 kilograms). The single engine produced 232,250 pounds of thrust (1,033,100 Newtons) and and its burn time was 7 minutes, 55 seconds.

The AS-201 223 feet, 6 inches (68.123 meters). The total vehicle weight was 1,320,220 pounds (598,842 kilograms). It was capable of launching a 46,000 pound (20,865 kilogram) payload to Earth orbit.

After being recovered, the AS-201 Apollo command module was used for drop tests. It is at the Strategic Air and Space Museum, Ashland, Nebraska.

Apollo Command Module CM-009. (HrAtsuo)
Apollo Command Module CM-009. (HrAtsuo)

© 2016, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather

22 January 1968

Apollo 5, a Saturn IB (SA-204) lifts off with LM-1 at Pad 37B, Kennedy Space Center, Cape Canaveral, Florida, at 22:48:09 UTC, 22 January 1968. (NASA)
Apollo 5, a Saturn IB (AS-204) lifts off with LM-1 at Launch Complex 37B, Cape Kennedy Air Force Station, Cape Canaveral, Florida, at 22:48:09 UTC, 22 January 1968. (NASA)

22 January 1968: At 22:48:09 UTC (6:48:09 a.m., Eastern Standard Time) a Saturn IB rocket lifted off from Launch Complex 37B at the Cape Kennedy Air Force Station, Cape Kennedy, Florida, carrying LM-1, an unmanned Apollo Program lunar lander, into a low-Earth orbit.

The purpose of the Apollo 5 mission was to test the Grumman-built LM in actual space flight conditions. Engines for both the descent and ascent stages had to be started in space, and be capable of restarts. Although the mission had some difficulties as a result of programming errors, it was successful and a second test flight with LM-2 was cancelled. LM-1’s orbit quickly decayed and it re-entered Earth’s atmosphere and was destroyed.

AS-204 (also referred to as SA-204) had been the scheduled launch vehicle for the Apollo 1 manned orbital flight. When a fire in the command module killed astronauts Virgil I. (“Gus”) Grissom, Edward H. White and Roger B. Chaffee, the rocket was undamaged. It was moved from Launch Complex 39 and reassembled at LC 37B for use as the launch vehicle for Apollo 5.

Apollo 5 Saturn IB (AS-204) at Launch Complex 37B. (NASA)
Apollo 5 Saturn IB (AS-204) at Launch Complex 37B. (NASA)

The S-IB was built by Chrysler Corporation Space Division at the Michoud Assembly Facility near New Orleans, Louisiana. It was powered by eight Rocketdyne H-1 engines, burning RP-1 and liquid oxygen. Eight Redstone rocket fuel tanks, with 4 containing the RP-1 fuel, and 4 filled with liquid oxygen, surrounded a Jupiter rocket fuel tank containing liquid oxygen. Total thrust of the S-IB stage was 1,666,460 pounds (7,417.783 kilonewtons) and it carried sufficient propellant for a maximum 4 minutes, 22.57 seconds of burn. First stage separation was planned for n altitude of 193,605 feet, with the vehicle accelerating through 7,591.20 feet per second (2,313.80 meters per second).

The McDonnell Douglas Astronautics Co. S-IVB stage was built at Huntington Beach, California. It was powered by one Rocketdyne J-2 engine, fueled by liquid hydrogen and liquid oxygen. The J-2 produced 229,714 pounds of thrust (1,021.819 kilonewtons), at high thrust, and 198,047 pounds (880.957 kilonewtons) at low thrust). The second stage carried enough fuel for 7 minutes, 49.50 seconds burn at high thrust. Orbital insertion would be occur 9 minutes, 51.9 seconds after launch, at an altitude of 98.5 miles (158.5 kilometers) with a velocity of 25,705.77 feet per second (7,835.12 meters per second).

The Saturn IB rocket stood 141 feet, 6 inches (43.13 meters) without payload. In the Apollo 5 configuration, the entire vehicle was 180 feet, 10.6 inches (55.133 meters) tall. It had a maximum diameter of 22.8 feet (6.949 meters), and the span across the first stage guide fins was 40.7 feet (12.405 meters). Its empty weight was 159,000 pounds (72,122 kilograms) and at liftoff, it weighed 1,296,000 pounds (587,856 kilograms). It was capable of launching a 46,000 pound (20,865 kilogram) payload to Earth orbit.

Apollo Lunar Module LM-1 being assembled with upper stage. (NASA)
Apollo Lunar Module LM-1 being assembled with upper stage. (NASA)

© 2017, Bryan R. Swopes

Facebooktwittergoogle_plusredditpinterestlinkedinmailby feather