The PGM-11 Redstone was the first large American

ballistic missile A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are guided only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles stay within t ...

. A

short-range ballistic missile A short-range ballistic missile (SRBM) is a ballistic missile with a range of about or less. In past and potential regional conflicts, these missiles have been and would be used because of the short distances between some countries and their rela ...

(SRBM), it was in active service with the

United States Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, ...

West Germany West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 ...

from June 1958 to June 1964 as part of

NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two N ...

Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...

defense of Western Europe. It was the first US missile to carry a live

nuclear warhead A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...

, in the 1958 Pacific Ocean weapons test,

Hardtack Teak HARDTACK-Teak was an exoatmospheric high altitude nuclear weapon test performed during Operation Newsreel. It was launched from Johnston Atoll on a Redstone missile.Operation HARDTACK Military Effects Studies Part III: High Altitude Tests' (1958 ...

. The Redstone was a direct descendant of the German

V-2 rocket The V-2 (german: Vergeltungswaffe 2, lit=Retaliation Weapon 2), with the technical name ''Aggregat 4'' (A-4), was the world’s first long-range guided ballistic missile. The missile, powered by a liquid-propellant rocket engine, was develop ...

, developed primarily by a team of German rocket engineers brought to the United States after World War II. The design used an upgraded engine from

Rocketdyne Rocketdyne was an American rocket engine design and production company headquartered in Canoga Park, in the western San Fernando Valley of suburban Los Angeles, in southern California. The Rocketdyne Division was founded by North American Avia ...

that allowed the missile to carry the W39 warhead which weighed with its reentry vehicle to a range of about . Redstone's prime contractor was the

Chrysler Stellantis North America (officially FCA US and formerly Chrysler ()) is one of the " Big Three" automobile manufacturers in the United States, headquartered in Auburn Hills, Michigan. It is the American subsidiary of the multinational automotiv ...

Corporation. The Redstone spawned the Redstone rocket family which holds a number of firsts in the US space program, notably launching the first US astronaut. It was retired by the Army in 1964 and replaced by the solid-fueled

MGM-31 Pershing The MGM-31A Pershing was the missile used in the Pershing 1 and Pershing 1a field artillery missile systems. It was a solid-fueled two-stage theater ballistic missile designed and built by Martin Marietta to replace the PGM-11 Redstone missile as ...

. Surplus missiles were widely used for test missions and space launches, including the first US man in space, and in 1967 the launch of Australia's first satellite.

History

Redstone was a direct descendant of the

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

, developed by a team of predominantly German rocket engineers under the leadership of

Wernher von Braun Wernher Magnus Maximilian Freiherr von Braun ( , ; 23 March 191216 June 1977) was a German and American aerospace engineer and space architect. He was a member of the Nazi Party and Allgemeine SS, as well as the leading figure in the develop ...

, that had been brought to the United States after World War II as part of

Operation Paperclip Operation Paperclip was a secret United States intelligence program in which more than 1,600 German scientists, engineers, and technicians were taken from the former Nazi Germany to the U.S. for government employment after the end of World War ...

. A product of the Army Ballistic Missile Agency (ABMA) at

Redstone Arsenal Redstone Arsenal (RSA) is a United States Army post and a census-designated place (CDP) adjacent to Huntsville in Madison County, Alabama, United States and is part of the Huntsville-Decatur Combined Statistical Area. The Arsenal is a garrison ...

Huntsville, Alabama Huntsville is a city in Madison County, Limestone County, and Morgan County, Alabama, United States. It is the county seat of Madison County. Located in the Appalachian region of northern Alabama, Huntsville is the most populous city in ...

, Redstone was designed as a surface-to-surface missile for the U.S. Army. It was named for the arsenal on 8 April 1952, which traced its name to the region's red rocks and

soil Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former ...

. The first Redstone lifted off from LC-4A at Cape Canaveral on 20 August 1953. It flew for one minute and 20 seconds before suffering an engine failure and falling into the sea. Following this partial success, the second test was conducted on 27 January 1954, this time without a hitch as the missile flew 55 miles. After these first two prototypes were flown, an improved engine was introduced to reduce problems with LOX turbopump cavitation. The third Redstone flight on 5 May was a total loss as the engine cut off one second after launch, causing the rocket to fall back on the pad and explode. After this incident, Major General

Holger Toftoy Major General Holger Nelson Toftoy (31 October 1902 – 19 April 1967) was a United States Army career officer instrumental to the development of the United States' early rocketry after World War II, such as the Redstone missile. He persuaded ...

pressured Wernher von Braun for the cause of the failure. The latter replied that he had no idea, but they would review telemetry and other data to find out. Toftoy persisted, asking "Wernher, why did the rocket explode?" An exasperated von Braun said "It exploded because the damn sonofabitch blew up!" Von Braun pressured the ABMA team to improve reliability and workmanship standards, allegedly remarking that "Missile reliability will require that the target area is more dangerous than the launch area." Subsequent test flights went better and the Army declared Redstone operational in mid-1955. Testing was moved from LC-4 to the bigger LC-5 and LC-6. The Redstone program proved to be a bone of contention between the Army and Air Force due to their different ideas of nuclear warfare. The Army favored using small warheads on mobile missiles as tactical battlefield weapons while the Air Force, which was responsible for the ICBM program, wanted large cross-continental missiles that could strike Soviet targets and rapidly cripple the USSR's infrastructure and ability to wage war. With the arrival of newer solid-fueled missiles that could be stored and not require fueling before launch, Redstone was rendered obsolete and production ended in 1961. The 40th Artillery Group was deactivated in February 1964 and 46th Artillery Group was deactivated in June 1964, as Redstone missiles were replaced by the Pershing missile in the U.S. Army arsenal. All Redstone missiles and equipment deployed to Europe were returned to the United States by the third quarter of 1964. In October 1964, the Redstone missile was ceremonially retired from active service at Redstone Arsenal.

Description

Redstone was capable of flights from . It consisted of a thrust unit for powered flight and a missile body for overall missile control and payload delivery on target. During powered flight, Redstone burned a fuel mixture of 25 percent water–75 percent ethyl alcohol with

liquid oxygen Liquid oxygen—abbreviated LOx, LOX or Lox in the aerospace, submarine and gas industries—is the liquid form of molecular oxygen. It was used as the oxidizer in the first liquid-fueled rocket invented in 1926 by Robert H. Goddard, an app ...

(LOX) used as the

oxidizer An oxidizing agent (also known as an oxidant, oxidizer, electron recipient, or electron acceptor) is a substance in a redox chemical reaction that gains or " accepts"/"receives" an electron from a (called the , , or ). In other words, an oxi ...

. Later Redstones used Hydyne, 60%

unsymmetrical dimethylhydrazine Unsymmetrical dimethylhydrazine (UDMH; 1,1-dimethylhydrazine, НДМГ or codenamed Geptil) is a chemical compound with the formula H2NN(CH3)2 that is used as a rocket propellant. It is a colorless liquid, with a sharp, fishy, ammonia-like smell ...

(UDMH) and 40%

diethylenetriamine Diethylenetriamine (abbreviated and also known as 2,2’-Iminodi(ethylamine)) is an organic compound with the formula HN(CH2CH2NH2)2. This colourless hygroscopic liquid is soluble in water and polar organic solvents, but not simple hydrocarbon ...

(DETA), as the fuel. The missile body consisted of an aft unit containing the instrument compartment, and the warhead unit containing the payload compartment and the

radar altimeter A radar altimeter (RA), also called a radio altimeter (RALT), electronic altimeter, reflection altimeter, or low-range radio altimeter (LRRA), measures altitude above the terrain presently beneath an aircraft or spacecraft by timing how long it t ...

fuze. The missile body was separated from the thrust unit 20–30 seconds after the termination of powered flight, as determined by the preset range to target. The body continued on a controlled

ballistic trajectory Projectile motion is a form of motion experienced by an object or particle (a projectile) that is projected in a gravitational field, such as from Earth's surface, and moves along a curved path under the action of gravity only. In the part ...

to the target impact point. The thrust unit continued on its own uncontrolled ballistic trajectory, impacting short of the designated target. The nuclear-armed Redstone carried the W39, either a MK 39Y1 Mod 1 or MK 39Y2 Mod 1, warhead with a yield of 3.8 megatons.

Production

Chrysler Corporation Stellantis North America (officially FCA US and formerly Chrysler ()) is one of the " Big Three" automobile manufacturers in the United States, headquartered in Auburn Hills, Michigan. It is the American subsidiary of the multinational automotiv ...

was awarded the prime production contract, to be made at the newly renamed Michigan Ordnance Missile Plant in Warren, Michigan. The navy-owned facility was previously known as the Naval Industrial Reserve Aircraft Plant used for jet engine production. Following the cancellation of a planned jet engine program, the facility was made available to the Chrysler Corporation for missile production, and began missile and support equipment production in 1952.

Division of North American Aviation Company provided the rocket engines; Ford Instrument Company, division of

Sperry Rand Corporation Sperry Corporation was a major American equipment and electronics company whose existence spanned more than seven decades of the 20th century. Sperry ceased to exist in 1986 following a prolonged hostile takeover bid engineered by Burroug ...

, produced the guidance and control systems; and

Reynolds Metals Company Reynolds Group Holdings is a New Zealand based packaging company with roots in the former Reynolds Metals Company, which was the second-largest aluminum company in the United States, and the third-largest in the world. Reynolds Metals was acquire ...

fabricated fuselage assemblies as subcontractors to Chrysler.

Redstone derivatives

In 1955, the

Jupiter-C The Jupiter-C was an American research and development vehicle developed from the Jupiter-A. Jupiter-C was used for three unmanned sub-orbital spaceflights in 1956 and 1957 to test re-entry nosecones that were later to be deployed on the more ...

rocket (not to be confused with the later, unrelated Jupiter IRBM) was developed as an enhanced Redstone for atmospheric and reentry vehicle tests. It had elongated propellant tanks for increased burn time and a new engine that burned a fuel mixture known as

hydyne Hydyne is a mixture of 60% unsymmetrical dimethylhydrazine (UDMH) and 40% diethylenetriamine (DETA), developed in 1957 at Rocketdyne for use in liquid-fuel rockets.Morgan, George. It was created by Mary Sherman MorganAmerica's First Lady of Rocke ...

and under the name of the Jupiter C/Juno 1 was used for the first successful US space launch of the

Explorer 1 Explorer 1 was the first satellite launched by the United States in 1958 and was part of the U.S. participation in the International Geophysical Year (IGY). The mission followed the first two satellites the previous year; the Soviet Union's S ...

satellite in 1958. The

Mercury-Redstone Launch Vehicle The Mercury-Redstone Launch Vehicle, designed for NASA's Project Mercury, was the first American crewed space booster. It was used for six sub-orbital Mercury flights from 1960–1961; culminating with the launch of the first, and 11 weeks ...

was a derivation of the Redstone with a fuel tank increased in length by and was used on 5 May 1961 to launch

Alan Shepard Alan Bartlett Shepard Jr. (November 18, 1923 – July 21, 1998) was an American astronaut, naval aviator, test pilot, and businessman. In 1961, he became the second person and the first American to travel into space and, in 1971, he beca ...

on his sub-orbital flight to become the second person and first American in space. It retained the Jupiter C's longer propellant tanks, but went back to using ethyl alcohol/water for propellant instead of hydyne. From 1966 to 1967, a series of surplus modified Redstones called Spartas were launched from Woomera, South Australia as part of a joint U.S.–United Kingdom–Australian research program aimed at understanding re-entry phenomena. These Redstones had two solid fuel upper stages added. The U.S. donated a spare Sparta for Australia's first satellite launch, WRESAT, in November 1967.

Operators

*40th Field Artillery Group 1958–1961 – West Germany **1st Battalion, 333rd Artillery Regiment *46th Field Artillery Group 1959–1961 – West Germany **2nd Battalion, 333rd Artillery Regiment *209th Field Artillery Group – Fort Sill, Oklahoma **4th Bn, 333rd Artillery Regiment

Surviving examples

*Displayed as PGM-11: **

National Air and Space Museum The National Air and Space Museum of the Smithsonian Institution, also called the Air and Space Museum, is a museum in Washington, D.C., in the United States. Established in 1946 as the National Air Museum, it opened its main building on the N ...

at the Udvar-Hazy Center,

Washington, DC ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morg ...

Warren, New Hampshire Warren is a town in Grafton County, New Hampshire, United States. The population was 825 at the 2020 census, down from 904 at the 2010 census. Warren includes the village of Glencliff. The Appalachian Trail crosses the town in the west. It ...

US Space and Rocket Center The U.S. Space & Rocket Center in Huntsville, Alabama is a museum operated by the government of Alabama, showcasing rockets, achievements, and artifacts of the U.S. space program. Sometimes billed as "Earth's largest space museum", astronaut O ...

Battleship Memorial Park Battleship Memorial Park is a military history park and museum on the western shore of Mobile Bay in Mobile, Alabama. It has a collection of notable aircraft and museum ships including the and . USS ''Alabama'' and USS ''Drum'' are both Nation ...

Mobile, Alabama Mobile ( , ) is a city and the county seat of Mobile County, Alabama, United States. The population within the city limits was 187,041 at the 2020 census, down from 195,111 at the 2010 census. It is the fourth-most-populous city in Alabama ...

Air Force Space and Missile Museum The Air Force Space and Missile Museum is located at Launch Complex 26 at Cape Canaveral Space Force Station, Florida. It includes artifacts from the early American space program and includes an outdoor area displaying rockets, missiles, and spa ...

Cape Canaveral, Florida Cape Canaveral ( es, Cabo Cañaveral, link=) is a city in Brevard County, Florida. The population was 9,912 at the 2010 United States Census. It is part of the Palm Bay–Melbourne– Titusville Metropolitan Statistical Area. History After t ...

** Kansas Cosmosphere,

Hutchinson, Kansas Hutchinson is the largest city and county seat in Reno County, Kansas, United States, and located on the Arkansas River. It has been home to salt mines since 1887, thus its nickname of "Salt City", but locals call it "Hutch". As of the 2020 ...

(payload and aft unit only) ** National Museum of Nuclear Science and History,

Albuquerque, New Mexico Albuquerque ( ; ), ; kee, Arawageeki; tow, Vakêêke; zun, Alo:ke:k'ya; apj, Gołgéeki'yé. abbreviated ABQ, is the most populous city in the U.S. state of New Mexico. Its nicknames, The Duke City and Burque, both reference its founding i ...

** White Sands Missile Range Museum,

White Sands, New Mexico White Sands is a census-designated place (CDP) in Doña Ana County, New Mexico, United States. It consists of the main residential area on the White Sands Missile Range. As of the 2010 census the population of the CDP was 1,651. It is part of ...

** Evergreen Aviation Museum, McMinnville, Oregon **

Marshall Space Flight Center The George C. Marshall Space Flight Center (MSFC), located in Redstone Arsenal, Alabama (Huntsville postal address), is the U.S. government's civilian rocketry and spacecraft propulsion research center. As the largest NASA center, MSFC's firs ...

**US Army Field Artillery Museum, Fort Sill, Oklahoma *Displayed as

**US Space and Rocket Center, Huntsville, Alabama ** Kennedy Space Center Visitor Complex,

Merritt Island, Florida Merritt Island is a peninsula, commonly referred to as an island, in Brevard County, Florida, United States, located on the eastern Floridian coast, along the Atlantic Ocean. It is also the name of an unincorporated town in the central and so ...

**Marshall Space Flight Center, Huntsville, Alabama **

Petal, Mississippi Petal is a city in Forrest County, Mississippi, along the Leaf River. It is part of the Hattiesburg, Mississippi Metropolitan Statistical Area. The population was 10,454 in the 2010 census, increasing to 11,010 in the 2020 census. History ...

(formerly at John C. Stennis Space Center's StenniSphere, now

INFINITY Science Center The John C. Stennis Space Center (SSC) is a NASA rocket testing facility in Hancock County, Mississippi, United States, on the banks of the Pearl River at the Mississippi–Louisiana border. , it is NASA's largest rocket engine test facility. ...

, not publicly visible) *Displayed as a

**Kennedy Space Center Visitor Complex, Merritt Island, Florida ***One in the rocket garden, one near the badging office, and one at Launch Complex 5 **

Air Zoo The Air Zoo, founded as the Kalamazoo Aviation History Museum, is an aviation museum and indoor amusement park next to the Kalamazoo-Battle Creek International Airport in Portage, Michigan. The Air Zoo holds many historical and rare aircraft, inc ...

Kalamazoo, Michigan Kalamazoo ( ) is a city in the southwest region of the U.S. state of Michigan. It is the county seat of Kalamazoo County. At the 2010 census, Kalamazoo had a population of 74,262. Kalamazoo is the major city of the Kalamazoo-Portage Metropoli ...

(in storage) **Kansas Cosmosphere, Hutchinson, Kansas **

Museum of Life + Science A museum ( ; plural museums or, rarely, musea) is a building or institution that cares for and displays a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance. Many public museums make these ...

Durham, North Carolina Durham ( ) is a city in the U.S. state of North Carolina and the county seat of Durham County. Small portions of the city limits extend into Orange County and Wake County. With a population of 283,506 in the 2020 Census, Durham is the 4th- ...

** Parque de las Ciencias Luis A. Ferré at

Bayamón, Puerto Rico Bayamón (, ) is a city, municipality of Puerto Rico and suburb of San Juan located in the northern coastal valley, north of Aguas Buenas and Comerío; south of Toa Baja and Cataño; west of Guaynabo; and east of Toa Alta and Naranjito. ...

Space Center Houston Space Center Houston is a science museum that serves as the official visitor center of NASA Johnson Space Center in Houston. It was designated a Smithsonian Affiliate museum in 2014. The organization is owned by NASA, and operated under a con ...

Houston, Texas Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 i ...

*Mercury-Redstone Launch Vehicles **US Space and Rocket Center, Huntsville, Alabama ** United States Astronaut Hall of Fame, Kennedy Space Center Visitor Complex

Gallery

File:Redstone msl 1 53 01.jpg, Redstone early production (1953) File:PGM-11 Redstone RS-1002.jpg, Preparations on 16 May 1958 for the first Redstone launch on 17 May conducted by US Army troops. Battery A, 217th Field Artillery Missile Battalion, 40th Artillery Group (Redstone); Cape Canaveral, Florida; Launch Complex 5 File:redstone_trainer_08_60.jpg, Redstone trainer missile practice firing exercise by US Army troops of Battery A, 1st Missile Battalion, 333rd Artillery, 40th Artillery Group (Redstone); Bad Kreuznach, West Germany; August 1960 File:Rocketdyne a-7.jpg, Rocketdyne (NAA) 75-110-A-7 engine File:17 22 055 A7 engine.jpg, A-7 engine on display File:Redstone 06.jpg, Redstone on display,

Pisgah Astronomical Research Institute Pisgah Astronomical Research Institute (PARI) (pronounced ''perry'') is a non-profit astronomical observatory located in the Pisgah National Forest near Balsam Grove, North Carolina. PARI operates multiple radio telescopes and optical telesc ...

File:Redstone Missile.JPG, Redstone rocket on display since 1971 at the

Historical Society File:National Museum of Nuclear Science & History Redstone Rocket.tif, National Museum of Nuclear Science & History display in Albuquerque, New Mexico File:Redstone in Grand Central Station July 7 1957.jpg, Redstone missile on display in

Grand Central Terminal Grand Central Terminal (GCT; also referred to as Grand Central Station or simply as Grand Central) is a commuter rail terminal located at 42nd Street and Park Avenue in Midtown Manhattan, New York City. Grand Central is the southern terminus ...

in New York, 7 July 1957

References

Bibliography

* * * * * * * ''Technology and Culture'', Vol. 4, No. 4, The History of Rocket Technology (Autumn 1963), pp. 452–465.

External links

Redstone Army Command site

NASA Documents relating to Redstone and Mercury Projects

Redstone Image Collection

from Encyclopedia Astronautica
Redstone timeline

* ttp://www.myarmyredstonedays.com/page12.html Appendix A: The Redstone Missile in Detail
Redstone at the White Sands Missile Range

From the ''Stars & Stripes'' Archives: "Redstone Rocketeers"

* ttp://libarchstor.uah.edu:8081/repositories/2/resources/25 Brigadier General Julius Braun Collection, The University of Alabama in Huntsville Archives and Special CollectionsFiles of Julius Braun, Project Officer for the Redstone missiles. {{DEFAULTSORT:Pgm-11 Redstone 1960 in spaceflight 1961 in spaceflight Cold War missiles of the United States Marshall Space Flight Center Nuclear weapons of the United States Short-range ballistic missiles Project Mercury PGM-011 Wernher von Braun Operation Paperclip Military equipment introduced in the 1950s