Terasca

Terasca, or Terrier-ASROC-Cajun, was an American three-stage sounding rocket developed and launched by the United States Navy. Derived from a combination of the Terrier, ASROC and Cajun rockets, three launches were attempted during 1959, but only one was successful.

Terasca

TERASCA rocket being readied
Function	Sounding rocket
Manufacturer	Naval Ordnance Test Station
Country of origin	United States
Size
Height	11 metres (36 ft)
Diameter	460 millimetres (18 in)
Mass	1,400 kilograms (3,000 lb)
Stages	Three
Capacity
Payload to 158 kilometres (98 mi)	25 pounds (11.3 kg)
Launch history
Status	Retired
Launch sites	Vandenberg AFB
Total launches	3
Successes	1
Failures	2
First flight	May 1, 1959
Last flight	August 12, 1959

Design and development

The Terrier-ASROC-Cajun ("Terasca") rocket was developed during early 1959 by the Naval Ordnance Test Station, located at China Lake, California, to fill a U.S. Navy requirement for a three-stage sounding rocket, intended to launch experimental payloads for conducting high-altitude research.[1][2] The rocket utilised a combination of existing missiles in its construction; the first stage was a Terrier surface-to-air missile; an ASROC anti-submarine rocket made up the second stage, while a Cajun sounding rocket was utilised as a third stage.[3]

The Terrier first stage produced 58,000 lb_f (258 kN) thrust,[3] while the ASROC second stage provided 11,000 lb_f (49 kN),[4] and the third-stage Cajun motor had a thrust rated at 8,100 lb_f (36 kN).[3] The theoretical apogee for Terasca was 98 miles (158 km); it could carry a scientific payload of up to 25 pounds (11 kg).[5]

Operational history

Three launch attempts of the Terasca missile were made from the launch facility at Vandenberg Air Force Base during 1959, utilising the Western Launch and Test Range. The first launch attempt took place on May 1; this launch was a failure.[3][6] A second launch attempt on June 26, however, was successful, with the rocket reaching an apogee of 60 miles (97 km).[3][6] A third launch, attempted on August 12, however, was also a failure;[6] following the third launch, the Terasca program came to a close.[3]

Launch history

Date/Time (GMT)	Rocket	Launch site	Outcome	Remarks[6]
1959-05-01	Terasca	Vandenberg Air Force Base	Failure	Apogee 0 kilometres (0 mi)
1959-06-26	Terasca	Vandenberg AFB	Success	Apogee 100 kilometres (62 mi)
1959-08-12	Terasca	Vandenberg AFB	Failure	Apogee 0 kilometres (0 mi)

References

Notes

1. FAA 2005, p.37.
2. The Rocketeer, Nov. 1993
3. Parsch 2007
4. Chant 1990, p.236.
5. Corliss 1971, p.83.
6. "Terrier ASROC Cajun". Encyclopedia Astronautica. Retrieved 2011-01-15.

Bibliography

• Chant, Christopher (1990). Sea Forces of the World. New York: Crescent Books. ISBN 978-0-517-69129-8.
• Corliss, William R. (1971). NASA SOUNDING ROCKETS, 1958-1968: A Historical Summary. The NASA Historical Report Series. SP-4401. Washington, D.C.: National Aeronautics and Space Administration Scientific and Technical Information Office. ASIN B0006C0SRW. Retrieved 2011-01-15.
• "China Lake Weapons Digest: 50 Years of Providing the Fleet with the Tools of the Trade". The Rocketeer. China Lake, CA: Naval Air Weapons Station China Lake. U.S. Naval Museum of Armament & Technology. November 4, 1993. Archived from the original on December 27, 2010. Retrieved 2011-01-15.
• "Suborbital Reusable Launch Vehicles and Emerging Markets" (PDF). Federal Aviation Administration Office of Commercial Space Transportation. February 2005. Retrieved 2011-01-15.
• Parsch, Andreas (2007). "(Other): "Missile Scrapbook"". Directory of U.S. Military Rockets and Missiles. designation-systems.net. Retrieved 2011-01-15.