Titan I
Encyclopedia
The Martin Marietta SM-68A/HGM-25A Titan I was the United States' first multistage ICBM (Intercontinental Ballistic Missile). Incorporating the latest design technology when designed and manufactured, the Titan I provided an additional nuclear deterrent to complement the U.S. Air Force's SM-65 Atlas missile. It was the first in a series of Titan rockets
Titan (rocket family)
Titan was a family of U.S. expendable rockets used between 1959 and 2005. A total of 368 rockets of this family were launched, including all the Project Gemini manned flights of the mid-1960s...

, but was unique among them in that it used LOX
Lox
Lox is salmon fillet that has been cured. In its most popular form, it is thinly sliced—less than in thickness—and, typically, served on a bagel, often with cream cheese, onion, tomato, cucumber and capers...

 and RP-1
RP-1
RP-1 is a highly refined form of kerosene outwardly similar to jet fuel, used as a rocket fuel. Although having a lower specific impulse than liquid hydrogen , RP-1 is cheaper, can be stored at room temperature, is far less of an explosive hazard and is far denser...

 as its propellants, while the later Titan versions all used storeable fuels instead. Though the SM-68A was operational for only three years, it was an important step in building the Air Force's strategic nuclear forces.

Origins

The program began in January 1955 and took shape in parallel with the Atlas
Atlas (missile)
The SM-65 Atlas was the first intercontinental ballistic missile developed and deployed by the United States. It was built for the U.S. Air Force by Convair Division of General Dynamics at the Kearny Mesa assembly plant north of San Diego, California...

 (SM-65/HGM-16) intercontinental ballistic missile (ICBM). The Air Force's
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

 goal in launching the Titan program was twofold: one, to serve as a backup should Atlas fail; and two, to develop a large, two-stage missile with a longer range and bigger payload that also could serve as a booster for space flights.

The Titan I HGM-25A, initially called the SM-68 - originally it was the XB-68 before the Air Force began designating missiles as SM for strategic missile and TM for tactical missiles. The XB-68 designation was originally assigned to a Martin supersonic bomber concept that was canceled during the design phase.

Characteristics

Produced by the Glenn L. Martin Company
Glenn L. Martin Company
The Glenn L. Martin Company was an American aircraft and aerospace manufacturing company that was founded by the aviation pioneer Glenn L. Martin. The Martin Company produced many important aircraft for the defense of the United States and its allies, especially during World War II and the Cold War...

 (which became "The Martin Company" in 1957), Titan I was a two-stage, liquid-fueled missile. The first stage delivered 300,000 pounds (1,330 kN) of thrust, the second stage 80,000 pounds (356 kN). The fact that Titan I, like Atlas, burned RP-1
RP-1
RP-1 is a highly refined form of kerosene outwardly similar to jet fuel, used as a rocket fuel. Although having a lower specific impulse than liquid hydrogen , RP-1 is cheaper, can be stored at room temperature, is far less of an explosive hazard and is far denser...

 and LOX
Lox
Lox is salmon fillet that has been cured. In its most popular form, it is thinly sliced—less than in thickness—and, typically, served on a bagel, often with cream cheese, onion, tomato, cucumber and capers...

 meant that the oxidizer had to be loaded onto the missile just before launch from the underground storage tank, and the missile raised above ground on the enormous elevator system, exposing the missile for some time before launch. The complexity of the system combined with its relatively slow reaction time - fifteen minutes to load, raise and launch the first missile, made it a less effective weapon system.

Titan I utilized radio command guidance. The inertial guidance system originally intended for the missile was instead eventually deployed in the Atlas E missile. (The Atlas series was intended to be the first generation of American ICBMs and Titan II (as opposed to Titan I) was to be the second generation deployed). An inertial guidance system would have allowed Titan I, once launched, to guide itself independently to a pre-programmed target. It would not have relied upon continuous radio command signals from a ground location, or upon the ability to receive and react to such signals.

Titan I also was the first true multi-stage (two or more stages) design. Whereas in Atlas, all rocket engines were ignited at launch (including two small thrust vernier engines) due to the unreliable nature of the engines, Titan I’s second stage engines were reliable enough to be ignited at altitude, after separation from the first stage booster; and its fuel tanks, engines, launch interface equipment, and launch pad thrust ring. Titan I’s ability to jettison this mass prior to the ignition of the second stage, meant that Titan I had a much greater total range (and a greater range per pound of second stage fuel) than Atlas, even if the total fuel load of Atlas had been greater.

The Titan I had an effective range of 5,500 nautical miles (10,200 km). When the first stage had finished consuming its propellant, it dropped away, thereby decreasing the mass of the vehicle. That made for a more efficient missile, which resulted in increased range and enabled a larger payload.

The warhead of the Titan I was an AVCO Mk 4 re-entry vehicle containing a W38
W38
The W38 was an American thermonuclear warhead used in the early to mid 1960s as a warhead for Atlas E and F, and LGM-25 Titan I ICBMs. It was first built in 1961 and was in service from 1961 to 1965. 70 were deployed on Titan I missiles and 110 on Atlas missiles. It used the Avco Mark 4 reentry...

 thermonuclear bomb with a yield of 3.75 megatons which was fuzed for either air burst or contact burst. The Mk 4 RV also deployed penetration aid
Penetration aid
A penetration aid is a device or tactic used to increase an intercontinental ballistic missile warhead's chances of penetrating a target's defenses...

s in the form of mylar
PET film (biaxially oriented)
BoPET is a polyester film made from stretched polyethylene terephthalate and is used for its high tensile strength, chemical and dimensional stability, transparency, reflectivity, gas and aroma barrier properties and electrical insulation.A variety of companies manufacture boPET and other...

 balloons which replicated the radar signature of the Mk 4 RV.

Research and development

The Titan-1 was tested in a comprehensive test program prior to deployment. From the first successful launch on Feb. 5, 1959 with Titan-1 A3 through to Jan. 29, 1962 Titan-1 M7.
There were 7 variants of the Titan-1 Research and Development missile: 6 A-types (4 launched) 7 B-types (2 launched), 6 C-types (5 launched), 10 G-types (7 launched), 22 J-types (22 launched), 4 V-types (4 launched), 7 M-types (7 launched). 62 produced (49 launched and 2 exploded). They were tested and launched at Cape Canaveral Air Force Station from Launch Complexes LC15, LC16, LC19 and LC20.

Operational deployment

Titan-1 Strategic Missile (SM) production began during the final stages of the Research and Development program. 101 Titan-1 SMs were produced to be tested from underground silos at Vandenberg Air Force Base and then stationed in silos in six squadrons of 9 missiles each across America. 54 Missiles in silos in total, with 1 Missile as a spare on standby at each squadron, bringing to 60 in service at any one time.

The Titan I was first American ICBM based in underground silos, and it gave USAF managers, contractors and missile crews valuable experience building and working in vast bunkers containing everything the missiles and crews needed for operation and survival. The complexes were composed of a control center, powerhouse, and two antenna silos for the ATHENA
ATHENA computer
The Athena Missile Guidance Computer was designed by Seymour Cray at Sperry Rand Corporation. It was designed to guide the silo-launched Titan-1 missile. It cost about $1,800,000 and weighed over 18,000 lbs. It spent most of its operational life in a missile silo.The computer, when declared...

 guidance radars.

These early silos, however, had certain drawbacks. First, the missiles took about 15 minutes to fuel, and then had to be lifted to the surface on huge elevators for launching, which slowed their reaction time. Rapid launching was crucial to avoid possible destruction by incoming missiles, even though Titan shelters were designed to withstand nuclear blasts. Second, the missiles' placement close together in groups of three—necessary because they shared a single ground-based radio guidance system—made them vulnerable to nuclear attack. All-inertial guidance, which does not depend on ground computers, was not yet perfected.

The distance between the antenna silos and the most distant missile silo was between 1,000 and 1300 feet (396.2 m). These were by far the most complex, extensive and expensive missile launch facilities ever deployed by the USAF. Launching a missile required fueling it in its silo, and then raising the launcher and missile out of the silo on a massive elevator. Before each launch the guidance radar had to be calibrated by acquiring a special target at a precisely known range and bearing. When the missile was launched, the guidance radar tracked the missile and supplied precise velocity range and azimuth data to the missile's guidance system. Because of this the complex could only launch and track one missile at a time.

Although Titan I's two stages gave it true intercontinental range and foreshadowed future multistage rockets, its propellants were dangerous and hard to handle. Super-chilled liquid oxygen oxidizer had to be pumped aboard the missile just before launch, and complex equipment was required to store and move this liquid. Kerosene fuel also was pumped aboard just before launch.

In its brief career, six squadrons were equipped with the Titan I. Each squadron was deployed in a 3x3 configuration, which meant a total of nine missiles were divided into three launch sites in Colorado, Idaho, California, Washington state and South Dakota. Each missile site had three Titan I ICBM missiles ready to launch at any given time. See squadron article for location of launch sites.
  • 568th Strategic Missile Squadron
    568th Strategic Missile Squadron
    The 568th Strategic Missile Squadron is an inactive United States Air Force unit. Its last was assigned to the 462d Strategic Aerospace Wing, stationed at Larson Air Force Base, Washington. It was inactivated on 25 March 1965.-History:...

     April 1961-March 1965
Larson AFB, Washington
  • 569th Strategic Missile Squadron
    569th Strategic Missile Squadron
    The 569th Strategic Missile Squadron is an inactive United States Air Force unit. Its last was assigned to the 9th Strategic Aerospace Wing, stationed at Mountain Home Air Force Base, Idaho. It was inactivated on 1 April 1965.-History:...

     June 1961-March 1965
Mountain Home AFB, Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....

  • 724th Strategic Missile Squadron
    724th Strategic Missile Squadron
    The 724th Strategic Missile Squadron is an inactive United States Air Force unit. It was last assigned to the 451st Strategic Missile Wing, stationed at Lowry Air Force Base, Colorado. It was inactivated on 25 June 1965.-World War II:...

     April 1961-June 1965
Lowry AFB, Colorado
Colorado
Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

  • 725th Strategic Missile Squadron
    725th Strategic Missile Squadron
    The 725th Strategic Missile Squadron is an inactive United States Air Force unit. It was last assigned to the 451st Strategic Missile Wing, stationed at Lowry Air Force Base, Colorado. It was inactivated on 25 June 1965.-World War II:...

     April 1961-June 1965
Lowry AFB, Colorado
Colorado
Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

  • 850th Strategic Missile Squadron
    850th Strategic Missile Squadron
    The 850th Strategic Missile Squadron is an inactive United States Air Force unit. Its last assignment was with the 44th Missile Wing, based at Ellsworth Air Force Base, South Dakota. It was inactivated on 25 March 1965.-History:...

     June 1960-March 1965
Ellsworth AFB, South Dakota
South Dakota
South Dakota is a state located in the Midwestern region of the United States. It is named after the Lakota and Dakota Sioux American Indian tribes. Once a part of Dakota Territory, South Dakota became a state on November 2, 1889. The state has an area of and an estimated population of just over...

  • 851st Strategic Missile Squadron
    851st Strategic Missile Squadron
    The 851st Strategic Missile Squadron is an inactive United States Air Force unit. Its last assignment was with the 456th Strategic Missile Wing, based at Beale Air Force Base, California...

     February 1961-March 1965
Beale AFB, California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...


Specifications

  • Liftoff thrust: 1,296 kN Total mass: 105,142 kg
  • Core diameter: 3.1 m. Total length: 31.0 m
  • Development cost: $1,643,300,000 in 1960 dollars.
  • Flyaway cost: $1,500,000 each, in 1962 dollars.
  • Total production missiles built: 163 Titan 1s; 62 R&D Missiles - 49 launched & 101 Strategic Missiles (SMs) - 17 launched.
  • Total deployed Strategic Missiles: 54.
  • Titan Base Cost: $170,000,000 (US$ in )


First Stage:
  • Gross mass: 76,203 kg
  • Empty mass: 4,000 kg
  • Thrust (vac): 1,467 kN
  • Isp (vac): 290 s (2.84 kN·s/kg)
  • Isp (sea level): 256 s (2.51 kN·s/kg)
  • Burn time: 138 s
  • Diameter: 3.1 m
  • Span: 3.1 m
  • Length: 16.0 m
  • Propellants: liquid oxygen (LOX)/kerosene
  • Number of engines: Two - Aerojet
    Aerojet
    Aerojet is an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California with divisions in Redmond, Washington, Orange, Gainesville and Camden, Arkansas. Aerojet is owned by GenCorp. They are the only US propulsion company that provides both solid rocket...

     LR-87-3
    LR-87
    The LR-87 was a liquid-propellent rocket engine, which was used to propel the first stages of Titan intercontinental ballistic missiles and launch vehicles. Though this powerful engine used two discrete combustion chambers, it is considered a single unit owing to both chambers using common...



Second Stage:
  • Gross mass: 28,939 kg
  • Empty mass: 1,725 kg
  • Thrust (vac):356 kN
  • Isp (vac): 308 s (3.02 kN·s/kg)
  • Isp (sea level): 210 s (2.06 kN·s/kg)
  • Burn time: 225 s
  • Diameter: 2.3 m
  • Span: 2.3 m
  • Length: 9.8 m
  • Propellants: liquid oxygen (LOX)/kerosene
  • Number of engines: One - Aerojet
    Aerojet
    Aerojet is an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California with divisions in Redmond, Washington, Orange, Gainesville and Camden, Arkansas. Aerojet is owned by GenCorp. They are the only US propulsion company that provides both solid rocket...

     LR-91-3

Service history

The number of Titan I missiles in service, by year:
  • 1961 - 1
  • 1962 - 62
  • 1963 - 63
  • 1964 - 56

Retirement

When the storable-fueled Titan II and the solid-fueled Minuteman I were deployed in 1963, the Titan I and Atlas missiles became obsolete. They were retired from service as ICBMs in early 1965. Count as of Mar. 5, 1965 (the final launch from VAFB): 17 were launched from VAFB (September, 61 - March, 1965); 1 was destroyed in Beale AFB Site 851-C1 silo explosion 24 May 1962; 54 were based in Silos with SAC by Jan. 20, 65; 29 were in storage SBAMA (3 at VAFB, 1 at each Base, incl. an extra at Lowry = 9 and 20 in storage at SBAMA elsewhere) EQUALS = 101 production SM vehicles. The 83 surplus missiles remained in inventory at Mira Loma, AFS. SM-65 Atlas missiles had already been converted to satellite launchers in the early 1960s, and the Titan I's had about the same payload capacity as an Atlas. It didn't make economic sense to refurbish the 83 remaining missiles as launch vehicles. About 33 were distributed to museums, parks and schools as static displays (see list below). The remaining 50 missiles were scrapped at Mira Loma AFS near San Bernardino, CA, the last was broken up in 1972, in accordance with the SALT-I Treaty of Feb. 1, 1972.

Official Count: 101 Titan 1 Strategic Missiles produced: 17 Test launched, 1 lost, 50 destroyed Mira Loma, 33 at museum/display (some missing). Equals 101.

On Sept. 6, 1985 Strategic Defense Initiative
Strategic Defense Initiative
The Strategic Defense Initiative was proposed by U.S. President Ronald Reagan on March 23, 1983 to use ground and space-based systems to protect the United States from attack by strategic nuclear ballistic missiles. The initiative focused on strategic defense rather than the prior strategic...

 (AKA "Star Wars" program), a scrapped Titan I Second Stage was used in a Missile Defense test. The MIRACL Near Infrared Laser, at White Sands Missile Range, NM was fired at a stationary Titan I second stage that was fixed to ground. The second stage burst and was destroyed by the laser blast. The second stage did not contain any fuel or oxidizer. It was pressurized with nitrogen gas to 60-psi. A followup test 6 days later was conducted on a scrapped Thor ICBM, its remnants reside at the SLC-10 Museum at Vandenberg AFB.




Static displays and articles

There should be 33 Static Titan 1 Strategic Missiles and 2 (+5 possible) Research & Development Missiles to account for (of these 22 have been positively identified by SN, 8 known but need to be identified) and 3 are unaccounted for, missing.
  • B2 57-2691 Cape Canaveral Air Force Space & Missile Museum
    Air Force Space & Missile Museum
    The Air Force Space & Missile Museum is located at Launch Complex 26 at Cape Canaveral Air Force Station, Florida. It includes artifacts from the early American space program and includes an outdoor rocket garden displaying rockets, missiles and space-related equipment chronicling the US Air...

    , Florida Horizontal

Note: May have been at the 14th American Rocket Society meeting at a Wash, DC hotel on Nov 1, 59
  • R&D (57-2743) Colorado State Capitol display 1959 (SN belongs to a Bomarc) Vertical
  • R&D ? City of Lompoc, Lompoc Park (may have been V3 or BH) see below as possible SM. was Vertical, destroyed.
  • R&D (1 of 2, poss. 6) Was at Patrick AFB Technical Laboratory, Satellite Beach, Florida. Vertical (destr. by Hurr. Erin 8/95)

then at Charlie Bell’s junkyard on US-1 Titusville, Fla., now Puerto Rico? (see below)
  • R&D G-type Science and Technology Museum, Chicago June 21, 1963 Vertical
  • SM-5 60-3650 Was on display at VAFB Armed Forces Day 1962, is this the Lompoc static? Horizontal
  • SM-49 60-3694 Cordele, Georgia
    Cordele, Georgia
    Cordele, also known as The Watermelon Capital of the World, is a city in Crisp County, Georgia, United States. The population was 11,608 at the 2000 census. The city is the county seat of Crisp County...

     (west side of Route I-75). Vertical
  • SM-53 60-3698 Site 395-C Museum, Vandenberg AFB, Lompoc, Ca. (from March AFB) Horizontal
  • SM-54 60-3699 Strategic Air Command Museum, Bellevue, Nebraska (near Omaha). Vertical
  • SM-61 60-3706 Gotte Park, Kimball, NE (only first stage standing, damaged by winds in ’96?) Vertical (damaged by winds 7/94 ?)
  • SM-63 60-3708 In storage at Edwards AFB (still there?) Horizontal
  • SM-65 61-4492 NASA Ames Research Center
    NASA Ames Research Center
    The Ames Research Center , is one of the United States of America's National Aeronautics and Space Administration 10 major field centers.The centre is located in Moffett Field in California's Silicon Valley, near the high-tech companies, entrepreneurial ventures, universities, and other...

    , Mountain View, California. Horizontal
  • SM-67 61-4494 Titusville High School, Titusville, Florida (on Route US-1) removed was Horizontal
  • SM-70 61-4497 Veterans Home, Quincy, IL Vertical (removed sent to DMAFB for destruction on May, 2010)
  • SM-71 61-4498 U.S. Air Force Museum
    National Museum of the United States Air Force
    The National Museum of the United States Air Force is the official museum of the United States Air Force located at Wright-Patterson Air Force Base northeast of Dayton, Ohio. The NMUSAF is the world's largest and oldest military aviation museum with more than 360 aircraft and missiles on display...

    , now AMARC (to go to PIMA Mus.) Horizontal
  • SM-72 61-4499 Florence Regional Airport
    Florence Regional Airport
    -History:The airport began with the purchase of of land in 1928. During World War II, the United States Army Air Forces Third Air Force used the airport as a training base and added...

     Air and Space Museum, Florence, South Carolina. Horizontal
  • SM-73 61-4500 former Holiday Motor Lodge, San Bernardino (now missing?). Horizontal
  • SM-79 61-4506 former Oklahoma State Fair Grounds, Oklahoma City, Oklahoma. 1960s Horizontal
  • SM-81 61-4508 Kansas Cosmosphere, Hutchinson, Kansas. In storage
  • SM-86 61-4513 Beale AFB (not on display, was horizontal, removed 1994) Horizontal
  • SM-88 61-4515 (st. 1) Pima Air & Space Museum
    Pima Air & Space Museum
    The Pima Air & Space Museum features a display of nearly 300 aircraft spread out over 80 acres on a campus occupying 127 acres . Located in Tucson, Arizona, it is one of the world's largest, non-government funded aerospace museums...

    , outside DM AFB, Tucson, Arizona, now WPAFB Horizontal
  • SM-89 61-4516 (st. 2) Pima Air Museum, outside DM AFB, Tucson, Arizona, now WPAFB Horizontal
  • SM-92 61-4519 (st. 1) Kansas Cosmosphere, Hutchinson, Kansas. (acq. 11/93 from MCDD) Vertical (st 1 mate to SM-94 st 1)
  • SM-93 61-4520 (st. 2) SLC-10 Museum, Vandenberg AFB, Lompoc, Ca. Horizontal (only stage 2)
  • SM-94 61-4521 (st. 1) Kansas Cosmosphere, Hutchinson, Kansas. (acq. 6/93 from MCDD) Vertical (st 1 mate to SM-92 st 1)
  • SM-96 61-4523 South Dakota Air and Space Museum
    South Dakota Air and Space Museum
    The South Dakota Air and Space Museum, part of the museum system of the National Museum of the US Air Force, is located in Box Elder, South Dakota, just outside the main gate of Ellsworth AFB. The South Dakota Air and Space Museum serves to educate and entertain the public...

    , Ellsworth AFB, Rapid City, South Dakota. Horizontal
  • SM-101 61-4528 Estrella Warbirds Museum, Paso Robles, CA (2nd stage damaged) Horizontal
  • SM- ? ? (full missile) Ingram Park, town of Lompoc, Ca. (with a Nike Target Warhead) was vertical, destroyed
  • SM- ? ? (stg. 2 only) former SDI laser test target (whereabouts?) is this 4519 & or 4521 stg 1? Horizontal (remnants of stage 1)
  • SM- ? ? (stg. 1 only) former Spaceport USA Rocket Garden, Kennedy Space Center, Florida. Vert. (stg 1 mated to stg 1 below)
  • SM- ? ? (stg. 1 only) former Spaceport USA Rocket Garden, Kennedy Space Center, Florida. Vert. (stg 1 mated to stg 1 above)
  • SM- ? ? (stg. 1 only) Science Museum, Bayamon, Puerto Rico (PAFB R&D/Bell’s ??) Vert. (stg 1 mated to stg 1 below)
  • SM- ? ? (stg. 1 only) Science Museum, Bayamon, Puerto Rico (top half from Bell’s Junkyard) Vert. (stg 1 mated to stg 1 above)
  • SM- ? ? (full missile) former Outside main gate of White Sands Missile Range, N.M. false report? Vertical
  • SM- ? ? (full missile) Spacetec CCAFS Horizontal
  • SM- ? ? (full missile) Alabama S&R Center, Huntsville (stored outside, far west corner of center) Horizontal (in trees)


Note: Two stacked Titan-1 first stages created a perfect illusion of a Titan-2 Missile for museums above.

External links

  • Tri-City Herald article by Kristin Alexander about Titan 1 complexes in Washington State
  • Information on "Northern California Triad" of Titan missile bases in Lincoln, California
    Lincoln, California
    Lincoln is a city in Placer County, California, United States located in the metropolitan area of Sacramento. The population was 42,819 at the 2010 census, with a growth rate of 282.1 percent since 2000 , making it the fastest growing city in the U.S...

    ; Chico, California
    Chico, California
    Chico is the most populous city in Butte County, California, United States. The population was 86,187 at the 2010 census, up from 59,954 at the time of the 2000 census...

     and Live Oak, Sutter County, California
    Live Oak, Sutter County, California
    Live Oak is an incorporated city in Sutter County, California, United States. It is part of the Yuba City Metropolitan Statistical Area within the Greater Sacramento CSA, and includes a hamlet historically named Stafford...

     (Sutter Buttes
    Sutter Buttes
    The Sutter Buttes are a small circular complex of eroded volcanic lava domes which rise as buttes above the flat plains of the Central Valley of California in the United States. The highest peak, South Butte, reaches about above sea level. The Buttes are located just outside of Yuba City,...

    )
  • Titan 1 Upgrade Project at NASA Moffett Field

See also

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK