SPARK (rocket)

Short description: American expendable launch system

SPARK

Super Strypi rocket on the launch pad

Function| Expendable launch system
Manufacturer| University of Hawaii
Aerojet Rocketdyne
Sandia
Country of origin| United States
Size
Height| 17 m (56 ft)[1]
Diameter| 1.5 m (4 ft 11 in) [1]
Mass| 28,240 kg (62,260 lb) [1]
Stages| Three
Capacity
Payload to 400 km SSO| 250 kilograms (550 lb)
Associated rockets
Family| Strypi
Launch history
Status| In development
Launch sites| Barking Sands
Total launches| 1
Successes| 0
Failures| 1
First flight| 3 November 2015

SPARK, or Spaceborne Payload Assist Rocket - Kauai, also known as Super Strypi,[2] is an American expendable launch system developed by the University of Hawaii, Sandia and Aerojet Rocketdyne.[3] Designed to place miniaturized satellites into low Earth and Sun-synchronous orbits, it is a derivative of the Strypi rocket which was developed in the 1960s in support of nuclear weapons testing. SPARK is being developed under the Low Earth Orbiting Nanosatellite Integrated Defense Autonomous System (LEONIDAS) program, funded by the Operationally Responsive Space Office of the United States Department of Defense.

## Contents

* 1 Configuration
* 2 History
* 2.1 ORS-4
* 3 References

## Configuration

SPARK is designed as a three-stage all-solid carrier rocket, with a spin-stabilized first stage known as LEO-46 and an active attitude control system on the second and third stages. It is launched using a new rail-guided system.[4] It is expected to have a payload capacity of 250 kilograms (550 lb) to a Sun-synchronous orbit at an altitude of approximately 400 kilometres (250 mi).[5] Launches will be conducted from the Pacific Missile Range Facility at Barking Sands.[6] Aerojet Rocketdyne will produce the motors for all three stages and Sandia is the prime contractor for the rocket's systems. The United States Air Force has provided launch support.

## History

### ORS-4

The first launch of SPARK, named ORS-4, took place on November 3, 2015[7] and was carrying HiakaSat (formerly called HawaiiSat-1[1]) and several secondary payloads,[4][8] including the Edison Demonstration of Smallsat Networks.[9] The mission was supposed to test the rocket at its full payload capacity. However, telemetry showed the rocket tumbling soon after liftoff, and the U.S. Air Force released a statement, saying that the "experimental Super Strypi launch vehicle failed in mid-flight shortly after liftoff".[10][11]

## References

1. ↑ 1.0 1.1 1.2 1.3 Graham, William (November 3, 2015). "Super Strypi conducts inaugural launch – Fails during first stage". NASA Spaceflight. http://www.nasaspaceflight.com/2015/11/super-strypi-spark-inaugural-launch/.
2. ↑ "HawaiiSat-1". eoPortal Directory. http://events.eoportal.org/get_announce.php?an_id=10003879.
3. ↑ Krebs, Gunter. "SPARK". Gunter's Space Page. http://space.skyrocket.de/doc_lau/spark.htm.
4. ↑ 4.0 4.1 Stephen Clark (30 October 2015). "Inaugural launch of small-class rocket on hold in Hawaii". Spaceflight Now. http://spaceflightnow.com/2015/10/29/first-launch-of-small-class-rocket-on-hold-in-hawaii/.
5. ↑ "Overview". Hawaii Space Flight Laboratory. http://hsfl.hawaii.edu/HSFL_Overview_071910.pdf.
6. ↑ Taylor, Brian. "Innovative Satellite Launch Program". School of Ocean and Earth Science and Technology, University of Hawaii. https://www.hawaii.edu/offices/op/innovation/taylor.pdf.
7. ↑ Spaceflight now
8. ↑ "Missions". Hawaii Space Flight Laboratory, University of Hawaii. http://hsfl.hawaii.edu/HSFL_missions.html.
9. ↑ Hall, Loura. "Swarming Space for Science". http://www.nasa.gov/feature/swarming-space-for-science.
10. ↑ "Live coverage: Maiden flight of Super Strypi launcher fails". http://spaceflightnow.com/2015/11/03/ors-4-mission-status-center/.
11. ↑ "'Super Strypi' Rocket Suffers Failure Shortly After Launch". https://grasswire.com/story/592/Super-Strypi.

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Orbital launch systems

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* Symbol † indicates projects terminated before a successful orbital launch

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Orbital launch systems developed in the United States

Active|

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In development|

* Firefly Alpha
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Retired|

* Antares 110/120/130/230
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* I
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* * - Japanese projects using US rockets or stages

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