| 词条 | Terrier Orion |
| 释义 |
The Terrier Orion sounding rocket is a combination of the Terrier booster rocket with the Orion rocket used as a second stage. This spin stabilized configuration is most often used by the Goddard Space Flight Center, who operate out of the Wallops Flight Facility for sounding rocket operations.[1] The system supports payloads ranging from {{Convert|200|to|800|lb|kg|-1}}, and is capable of achieving altitudes as high as {{Convert|200|km|mi|order=flip}}, but at least {{Convert|80|km|mi|order=flip}}, depending on payload size.[2] Technical detailsThe Terrier Orion system is designed to be rail launched, and can be supported at most fixed and mobile launch sites.[2] The Terrier Mk 12 Mod 1 or Mk 70 rocket used for the first stage uses an {{Convert|18|in|cm|adj=on}} diameter motor along with {{Convert|2.5|or|4.8|ft2|adj=on}} cruciform configured tail fins. The Improved Orion motor used in the second stage is {{Convert|14|in|cm}} in diameter and {{Convert|110|in|cm}} long. The system typically uses spin motors and has a total weight of approximately {{Convert|2900|lb|kg}}, excluding payload.[1] The Improved Orion motor uses a "bi-phase propellant" system which provides it with around {{convert|19000|lbf}} of thrust during the first four seconds of motor burn. The thrust then tails off to approximately {{convert|3000|lbf}} of thrust until burnout occurs at around 25 seconds. The fins are normally configured so that the rocket will have a stabilizing spin rate of approximately four cycles per second.[2] See also
References1. ^1 {{Cite web |url=https://www.nasa.gov/mission_pages/sunearth/missions/terrier-improvedOrion.html |title=NASA's Terrier Improved Orion Rocket |publisher=NASA{{\\}}GSFC |editor-first=Jim |editor-last=Wilson |date=March 2, 2012 |accessdate=March 16, 2012}} 2. ^1 2 {{Cite web |url=https://sites.wff.nasa.gov/code810/vehicles/Terrier_Imrprove%20Orion.pdf |title=Terrier-Improved Orion (41.XXX) |publisher=NASA |format=PDF}} External links{{commons category-inline|Terrier Orion}} 1 : Sounding rockets of the United States |
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