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Lockheed Martin X-33

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483: 475: 638: 426: 530: 131: 27: 880: 499: 491: 522:. Doing away with the need for "staging" with launch vehicles, such as with the Shuttle and the Apollo rockets, would lead to an inherently more reliable and safer space launch vehicle. While the X-33 would not approach airplane-like safety, the X-33 would attempt to demonstrate 0.997 reliability, or 3 mishaps out of 1,000 launches, which would be an order of magnitude more reliable than the 422:
that the technology of the time was simply not advanced enough for such a design. While the composite tank walls themselves were lighter, the hydrogen tank shape necessary to fit inside the aerodynamic mouldline resulted in complex joints increasing the total mass of the composite tank to above that of an aluminum-based tank, and too heavy for an SSTO vehicle.
630:, NASA would instead look to private industry to operate the reusable launch vehicle and NASA would purchase launch services from the commercial launch provider. Thus, the X-33 was not only about honing space flight technologies, but also about successfully demonstrating the technology required to make a commercial reusable launch vehicle possible. 597:
The uncrewed X-33 was slated to fly 15 suborbital hops to near 75.8 km altitude. It was to be launched upright like a rocket and rather than having a straight flight path it would fly diagonally up for half the flight, reaching extremely high altitudes, and then for the rest of the flight glide
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On September 7, 2004, Northrop Grumman and NASA engineers unveiled a liquid-hydrogen tank made of carbon-fiber composite material that had demonstrated the ability for repeated fuelings and simulated launch cycles. Northrop Grumman concluded that these successful tests have enabled the development
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be 10% of the fully fueled weight. This would allow a vehicle to fly to low Earth orbit without the need for the sort of external boosters and fuel tanks used by the Space Shuttle. But, after the composite tank failed on the test stand during fueling and pressure tests, NASA came to the conclusion
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In particular, the composite liquid hydrogen fuel tank failed during testing in November 1999. The tank was constructed of honeycomb composite walls and internal structures to reduce its weight. A lighter tank was needed for the craft to demonstrate necessary technologies for single-stage-to-orbit
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Failures of its 21-meter wingspan and multi-lobed, composite-material fuel tank during pressure testing ultimately led to the withdrawal of federal support for the program in early 2001. Lockheed Martin has conducted unrelated testing, and has had a single success after a string of failures as
383:.. to build a vehicle that takes days, not months, to turn around; dozens, not thousands, of people to operate; with launch costs that are a tenth of what they are now. Our goal is a reusable launch vehicle that will cut the cost of getting a pound of payload to orbit from $ 10,000 to $ 1,000. 601:
The X-33 was never intended to fly higher than an altitude of 100 km, nor faster than one-half of orbital velocity. Had any successful tests occurred, extrapolation would have been necessary to apply the results to a proposed orbital vehicle.
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The VentureStar was to be the first commercial aircraft to fly into space. The VentureStar was intended for long inter-continental flights and supposed to be in service by 2012, but this project was never funded or begun.
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and the resulting drop in the anticipated number of commercial satellite launches per year, Lockheed Martin concluded that continuing development of the X-33 privately without government support would not be profitable.
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NASA had invested $ 922 million in the project before cancellation, and Lockheed Martin a further $ 357 million. Due to changes in the space launch business—including the challenges faced by companies such as
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The decision to design and build the X-33 grew out of an internal NASA study titled "Access to Space". Unlike other space transport studies, "Access to Space" was to result in the design and construction of a vehicle.
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After the cancellation in 2001, engineers were able to make a working liquid-oxygen tank from carbon-fiber composite. Tests showed that composites were feasible materials for liquid-oxygen tanks
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Five companies expressed interest and proposed concepts. Of those five Lockheed Martin, Rockwell and McDonnell Douglas were selected for workup into more detailed proposals.
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Flight tests would involve speeds of up to Mach 15 and altitudes up to approximately 75,800 meters... The test program was baselined for a combined total of 15 flights.
574:, to design, build, and test the X-33 experimental vehicle for the RLV program. Lockheed Martin's design concept for the X-33 was selected over competing concepts from 371:
To "provide a technology base for development of advanced commercial launch systems that will make U.S. aerospace manufacturers more competitive in the global market."
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The uncrewed craft would have been launched vertically from a specially designed facility constructed on Edwards Air Force Base, and landed horizontally (
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100% complete when the program was canceled by NASA in 2001, after a long series of technical difficulties including flight instability and excess
353:, and Lockheed Martin, a Phase II contract to develop the X-33 as a demonstrator vehicle was awarded to Lockheed Martin in 1996. At the same time 4471: 3673: 3668: 3663: 1430: 1063: 4381: 941: 5106: 368:
To "demonstrate technologies leading to a new generation of space boosters capable of delivering payloads at significantly lower cost"
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In 1994 NASA initiated the Reusable Launch Vehicle (RLV) program. After a Phase I programme developing proposals from
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and refinement of new manufacturing processes that will allow the company to build large composite tanks without an
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Through the use of the lifting body shape, composite multi-lobed liquid fuel tanks, and the aerospike engine,
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Microcracking problem discovered in the liquid-hydrogen (LH2) multi-lobed tank core by NASA scientists at
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Once those test flights were completed, further flight tests were to be conducted from Edwards AFB to
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that was developed for a period in the 1990s. The X-33 was a technology demonstrator for the
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orbital spaceplane, which was planned to be a next-generation, commercially operated
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Construction of the prototype was some 85% assembled with 96% of the parts and the
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test vehicle. It would have used a single SSME for the main propulsion system.
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In a subsequent full-scale system to reach orbit Rockwell planned to use six
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featured a design using liquid oxygen/hydrogen bell engines based on its
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Uncrewed re-usable spaceplane technology demonstrator for the VentureStar
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hoped to test fly a craft that would demonstrate the viability of a
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X-33 model being prepared for testing in a wind-tunnel in 1997
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successfully built and tested a simple cylindrical composite
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Rockwell International X-33 Technology Demonstrator Proposal
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was a proposed uncrewed, sub-scale technology demonstrator
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Goldin NASA administrator on the RLV program 361:, an air-launched hypersonic research vehicle. 1237:, September 7, 2004, accessed January 9, 2017. 1012: 1010: 1008: 1006: 1004: 1002: 695:, 410,000 lbf (1,800 kN) thrust each 337:recently as 2009 using a 2-meter scale model. 4550: 4273: 3716: 1465: 1223: 1037: 1035: 981:"Reusable rocket plane soars in test flight" 736: 462:hydrogen tank as part of early work for the 398:The program was cancelled in February 2001. 1249:"An update on composite tanks for cryogens" 999: 916:. Encyclopedia Astronautica. Archived from 413:operations. A hydrogen fueled SSTO craft's 4557: 4543: 4280: 4266: 3723: 3709: 1472: 1458: 1300: 1298: 1296: 1163:. NASA. September 23, 1998. Archived from 937: 935: 533:X-33 launch facility already completed at 129: 1097:"X-33/VentureStar — What really happened" 1032: 609: 469: 111:Learn how and when to remove this message 4967:Chinese reusable experimental spacecraft 753:-derived design. It would have used one 636: 528: 497: 489: 481: 473: 424: 417:requires that the weight of the vehicle 135:Artist's rendition of the X-33 in orbit. 1322:Full 1995 RAND TAV workshop proceedings 1293: 1134:. NASA. October 7, 1996. Archived from 932: 907: 905: 903: 5203: 1395:, US: GAO, August 1999, archived from 1126: 1124: 1094: 1058: 1056: 952: 357:was awarded a contract to develop the 4943: 4580: 4538: 4261: 3704: 1453: 1246: 978: 911: 720: 502:Simulated in-flight view of the X-33. 1207: 1185: 972: 900: 774: 49:adding citations to reliable sources 20: 3511: 1438:, WP AFB: Air force, archived from 1381:, Federation of American Scientists 1358:(History), US: NASA, archived from 1121: 1113:. September 7, 2004. Archived from 1053: 979:David, Leonard (October 15, 2009). 364:The goals of the RLV program were: 13: 4581: 4292:(AFRL) spacecraft and air vehicles 622:for a full-scale SSTO RLV, called 494:Space art of X-33 at high altitude 14: 5262: 1335: 1095:Bergin, Chris (January 4, 2006). 1064:"X-33 Launch Complex (Area 1-54)" 953:Conner, Monroe (March 30, 2016). 676:285,000 lb (129,274 kg) 197:129,000 kg (285,000 lb) 5246:Proposed reusable launch systems 1331:https://www.youtube.com/watch?v= 1161:"The Policy Origins of the X-33" 878: 682:210,000 lb (95,000 kg) 249:1,800 kN (410,000 lbf) 25: 1432:X-33 Launch Complex (Area 1-54) 1315: 1281: 1259: 1240: 1201: 1179: 1153: 393: 36:needs additional citations for 4944: 1103: 1088: 946: 307:(SSTO RLVs), such as metallic 1: 4290:Air Force Research Laboratory 1247:Black, Sara (November 2005). 893: 784:vertical takeoff and landing 7: 5216:Cancelled aircraft projects 5101:Ya Guidao Gainian Feixingqi 1253:High-Performance Composites 1217:High-Performance Composites 1195:High-Performance Composites 792: 744: 431:Goddard Space Flight Center 10: 5267: 4495:Tactical Satellite Program 4355:University Nanosat Program 4245:Assigned to multiple types 983:. NBC News. Archived from 830:List of NASA cancellations 340: 309:thermal protection systems 5183: 5115: 5083: 5037: 4986: 4954: 4950: 4939: 4800: 4774: 4649: 4620: 4591: 4587: 4576: 4493: 4431: 4395: 4354: 4297: 4238: 4187: 4092: 3934: 3791: 3782: 3744: 3739:) designations since 1941 3691: 2507: 2491: 2440: 2409: 2308: 2272: 2246: 2171: 2135: 2084: 2048: 2041: 1981: 1950: 1914: 1883: 1857: 1850: 1783: 1747: 1674: 1608: 1560: 1499: 1492: 1018:"Reusable Launch Vehicle" 755:Space Shuttle Main Engine 737:The alternative proposals 271: 267: 253: 245: 231: 226: 222: 214: 209: 201: 193: 185: 180: 172: 164: 154: 140: 128: 5211:Lockheed Martin aircraft 4432:Technology demonstrators 4396:Space weather satellites 866:Space Shuttle retirement 855:Reusable Vehicle Testing 305:reusable launch vehicles 5226:Rocket-powered aircraft 4893:Reusable Booster System 4883:Liquid Fly-back Booster 4566:Reusable launch systems 4298:Launch/orbital vehicles 3745:Supersonic/special test 1487:aircraft and spacecraft 810:Blue Origin New Shepard 655:General characteristics 598:back down to a runway. 298:reusable launch vehicle 149:technology demonstrator 5241:Edwards Air Force Base 5096:Goodyear Meteor Junior 4630:(orbiter and boosters) 4337:Space Maneuver Vehicle 1069:. USAF. Archived from 955:"Lockheed Martin X-33" 845:McDonnell Douglas DC-X 835:Lunar Lander Challenge 670:77 ft (23 m) 664:69 ft (21 m) 649: 610:Commercial spaceflight 582:. Rockwell proposed a 576:Rockwell International 546:Dugway Proving Grounds 537: 535:Edwards Air Force Base 503: 495: 487: 479: 470:Design and development 434: 391: 347:Rockwell International 189:20 m (66 ft) 60:"Lockheed Martin X-33" 5236:Single-stage-to-orbit 5023:Space Shuttle orbiter 3733:experimental aircraft 3731:USAF / Joint Service 1675:C-130 Hercules family 1542:8-D, E & G Altair 1343:Simulated X-33 Flight 1277:on December 28, 2016. 1028:on February 24, 2013. 640: 532: 516:single-stage-to-orbit 501: 493: 485: 477: 464:Constellation program 428: 381: 302:single-stage-to-orbit 290:suborbital spaceplane 4329:Orbital Test Vehicle 1884:Shooting Star family 1748:L-188 Electra family 1609:Constellation family 1424:on December 13, 2015 1117:on January 10, 2017. 1099:. NASA Space Flight. 987:on December 24, 2019 920:on February 15, 2017 840:Masten Space Systems 820:Interorbital Systems 749:Rockwell proposed a 646:Stennis Space Center 572:Palmdale, California 561:Great Falls, Montana 550:Salt Lake City, Utah 286:Lockheed Martin X-33 45:improve this article 4994:Buran-class orbiter 4835:Energia II (Uragan) 1402:on February 8, 2012 1271:www.astronautix.com 1208:Graf, Neil (2001). 1186:Graf, Neil (2001). 1167:on October 22, 2014 1138:on December 3, 2008 861:Skylon (spacecraft) 815:Bristol Spaceplanes 800:Armadillo Aerospace 674:Max takeoff weight: 144:Uncrewed re-usable 125: 4732:Rocket Lab Neutron 3785:"X" (1948–present) 1915:Starfighter family 1229:Northrop Grumman. 886:Spaceflight portal 721:Continued research 650: 618:hoped to make the 538: 504: 496: 488: 480: 435: 123: 5198: 5197: 5179: 5178: 5175: 5174: 5062:Orel (spacecraft) 4935: 4934: 4931: 4930: 4743:Starship (SpaceX) 4532: 4531: 4481: 4463: 4323: 4312: 4255: 4254: 4183: 4182: 3698: 3697: 3687: 3686: 2242: 2241: 2037: 2036: 1846: 1845: 1573:12 Electra Junior 1417:X-33 cancellation 780:McDonnell Douglas 775:McDonnell Douglas 580:McDonnell Douglas 351:McDonnell Douglas 282: 281: 240:linear aerospikes 165:Country of origin 121: 120: 113: 95: 5258: 5251:Unflown aircraft 5045:Boeing Starliner 4952: 4951: 4941: 4940: 4748:Stoke Space Nova 4697:8R (first stage) 4694:6X (first stage) 4589: 4588: 4578: 4577: 4559: 4552: 4545: 4536: 4535: 4479: 4461: 4321: 4310: 4282: 4275: 4268: 4259: 4258: 4136: 4106: 3789: 3788: 3725: 3718: 3711: 3702: 3701: 3660: 3655: 3645: 3625: 3615: 3590: 3585: 3570: 3560: 3550: 3535: 3530: 3509: 3508: 2717: 2712: 2702: 2662: 2647: 2607: 2587: 2545: 2049:Blackbird family 2046: 2045: 1858:Lightning family 1855: 1854: 1646:L-1649 Starliner 1578:14 Super Electra 1528: 1497: 1496: 1474: 1467: 1460: 1451: 1450: 1446: 1444: 1437: 1425: 1410: 1409: 1407: 1401: 1394: 1382: 1370: 1369: 1367: 1344: 1324: 1319: 1313: 1312: 1310: 1302: 1291: 1285: 1279: 1278: 1273:. 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Archived from 1014: 997: 996: 994: 992: 976: 970: 969: 967: 965: 950: 944: 939: 930: 929: 927: 925: 909: 888: 883: 882: 881: 703: 690:linear aerospike 657: 648:, August 6, 2001 642:Aerospike engine 456:Northrop Grumman 389: 355:Orbital Sciences 324:aerospike engine 275:edit on Wikidata 133: 126: 122: 116: 109: 105: 102: 96: 94: 53: 29: 21: 5266: 5265: 5261: 5260: 5259: 5257: 5256: 5255: 5201: 5200: 5199: 5194: 5171: 5111: 5079: 5033: 4982: 4946: 4927: 4796: 4770: 4645: 4616: 4583: 4572: 4563: 4533: 4528: 4489: 4427: 4391: 4350: 4293: 4286: 4256: 4251: 4234: 4179: 4134: 4104: 4088: 3930: 3784: 3778: 3747:"S" (1946–1947) 3746: 3740: 3729: 3699: 3694: 3683: 3658: 3653: 3643: 3623: 3613: 3588: 3583: 3568: 3558: 3548: 3533: 3528: 3507: 2715: 2710: 2700: 2660: 2645: 2605: 2585: 2543: 2510: 2503: 2487: 2436: 2405: 2304: 2268: 2238: 2199:Desert Hawk III 2189:Cormorant (UAV) 2167: 2153:YO-3 Quiet Star 2131: 2107:P2V/P-2 Neptune 2085:Maritime patrol 2080: 2061:SR-71 Blackbird 2033: 1977: 1946: 1910: 1879: 1851:Fighter-bombers 1842: 1779: 1743: 1670: 1604: 1556: 1526: 1488: 1485:Lockheed Martin 1478: 1445:on June 5, 2011 1442: 1435: 1429: 1414: 1405: 1403: 1399: 1392: 1386: 1374: 1365: 1363: 1352: 1342: 1338: 1328: 1327: 1320: 1316: 1308: 1304: 1303: 1294: 1286: 1282: 1265: 1264: 1260: 1245: 1241: 1228: 1224: 1212: 1206: 1202: 1190: 1184: 1180: 1170: 1168: 1159: 1158: 1154: 1141: 1139: 1130: 1129: 1122: 1109: 1108: 1104: 1093: 1089: 1079: 1077: 1076:on June 5, 2011 1073: 1066: 1062: 1061: 1054: 1041: 1040: 1033: 1016: 1015: 1000: 990: 988: 977: 973: 963: 961: 951: 947: 940: 933: 923: 921: 910: 901: 896: 891: 884: 879: 877: 857:program by JAXA 795: 777: 757:(SSME) and two 747: 739: 723: 699: 653: 652: 616:Lockheed Martin 612: 520:low Earth orbit 512:Lockheed Martin 472: 403:launch facility 396: 390: 387: 343: 320:liquid hydrogen 318:fuel tanks for 278: 159:Lockheed Martin 136: 117: 106: 100: 97: 54: 52: 42: 30: 19: 12: 11: 5: 5264: 5254: 5253: 5248: 5243: 5238: 5233: 5228: 5223: 5221:Lifting bodies 5218: 5213: 5196: 5195: 5193: 5192: 5184: 5181: 5180: 5177: 5176: 5173: 5172: 5170: 5169: 5166:SpaceShipThree 5163: 5157: 5151: 5146: 5141: 5136: 5130: 5125: 5119: 5117: 5113: 5112: 5110: 5109: 5104: 5098: 5093: 5087: 5085: 5081: 5080: 5078: 5077: 5071: 5065: 5059: 5053: 5048: 5041: 5039: 5038:In development 5035: 5034: 5032: 5031: 5025: 5020: 5014: 5008: 5002: 4996: 4990: 4988: 4984: 4983: 4981: 4980: 4975: 4970: 4964: 4958: 4956: 4948: 4947: 4937: 4936: 4933: 4932: 4929: 4928: 4926: 4925: 4920: 4915: 4910: 4905: 4900: 4895: 4890: 4885: 4880: 4875: 4870: 4862: 4857: 4852: 4847: 4842: 4837: 4832: 4827: 4821: 4815: 4810: 4804: 4802: 4798: 4797: 4795: 4794: 4792:Saturn-Shuttle 4789: 4784: 4778: 4776: 4772: 4771: 4769: 4768: 4762: 4756: 4750: 4745: 4740: 4735: 4729: 4724: 4718: 4712: 4706: 4700: 4699: 4698: 4695: 4687: 4681: 4675: 4670: 4665: 4660: 4653: 4651: 4650:In development 4647: 4646: 4644: 4643: 4637: 4631: 4624: 4622: 4618: 4617: 4615: 4614: 4608: 4602: 4595: 4593: 4585: 4584: 4582:Launch systems 4574: 4573: 4562: 4561: 4554: 4547: 4539: 4530: 4529: 4527: 4526: 4521: 4516: 4511: 4506: 4500: 4498: 4491: 4490: 4488: 4487: 4482: 4474: 4469: 4464: 4456: 4451: 4446: 4441: 4435: 4433: 4429: 4428: 4426: 4425: 4420: 4415: 4410: 4405: 4399: 4397: 4393: 4392: 4390: 4389: 4384: 4379: 4374: 4369: 4364: 4358: 4356: 4352: 4351: 4349: 4348: 4340: 4332: 4324: 4313: 4301: 4299: 4295: 4294: 4285: 4284: 4277: 4270: 4262: 4253: 4252: 4250: 4249: 4246: 4243: 4239: 4236: 4235: 4233: 4232: 4227: 4222: 4217: 4212: 4207: 4202: 4197: 4191: 4189: 4185: 4184: 4181: 4180: 4178: 4177: 4172: 4167: 4162: 4157: 4152: 4147: 4142: 4137: 4132: 4127: 4122: 4117: 4112: 4107: 4102: 4096: 4094: 4090: 4089: 4087: 4086: 4081: 4076: 4071: 4070: 4069: 4064: 4054: 4049: 4044: 4043: 4042: 4037: 4029: 4024: 4019: 4014: 4009: 4004: 3999: 3994: 3989: 3984: 3979: 3974: 3969: 3964: 3959: 3954: 3949: 3944: 3938: 3936: 3932: 3931: 3929: 3928: 3923: 3922: 3921: 3911: 3906: 3901: 3896: 3891: 3886: 3881: 3876: 3871: 3866: 3861: 3856: 3851: 3846: 3841: 3836: 3831: 3826: 3821: 3816: 3811: 3806: 3801: 3795: 3793: 3786: 3780: 3779: 3777: 3776: 3771: 3766: 3761: 3756: 3750: 3748: 3742: 3741: 3728: 3727: 3720: 3713: 3705: 3696: 3695: 3692: 3689: 3688: 3685: 3684: 3682: 3681: 3676: 3671: 3666: 3661: 3656: 3651: 3646: 3641: 3636: 3631: 3626: 3621: 3616: 3611: 3606: 3601: 3596: 3591: 3586: 3581: 3576: 3571: 3566: 3561: 3556: 3551: 3546: 3541: 3536: 3531: 3526: 3521: 3515: 3513: 3506: 3505: 3500: 3495: 3490: 3485: 3480: 3475: 3470: 3465: 3460: 3455: 3450: 3445: 3440: 3435: 3430: 3425: 3420: 3415: 3410: 3405: 3400: 3395: 3390: 3389: 3388: 3378: 3373: 3368: 3363: 3358: 3353: 3348: 3343: 3338: 3333: 3328: 3323: 3318: 3313: 3308: 3303: 3298: 3293: 3288: 3283: 3278: 3273: 3268: 3263: 3258: 3253: 3248: 3243: 3238: 3233: 3228: 3223: 3218: 3213: 3208: 3203: 3198: 3193: 3188: 3183: 3178: 3173: 3168: 3163: 3158: 3153: 3148: 3143: 3138: 3133: 3128: 3123: 3118: 3113: 3108: 3103: 3098: 3093: 3088: 3083: 3078: 3073: 3068: 3063: 3058: 3053: 3048: 3043: 3038: 3033: 3028: 3023: 3018: 3013: 3008: 3003: 2998: 2993: 2988: 2983: 2978: 2973: 2968: 2963: 2958: 2953: 2948: 2943: 2938: 2933: 2928: 2923: 2918: 2913: 2908: 2903: 2898: 2893: 2888: 2883: 2878: 2873: 2868: 2863: 2858: 2853: 2848: 2843: 2838: 2833: 2828: 2823: 2818: 2813: 2808: 2803: 2798: 2793: 2788: 2783: 2778: 2773: 2768: 2763: 2758: 2753: 2748: 2743: 2738: 2733: 2728: 2723: 2718: 2713: 2708: 2703: 2698: 2693: 2688: 2683: 2678: 2673: 2668: 2663: 2658: 2653: 2648: 2643: 2638: 2633: 2628: 2623: 2618: 2613: 2608: 2603: 2598: 2593: 2588: 2583: 2578: 2573: 2568: 2563: 2562: 2561: 2551: 2546: 2541: 2536: 2531: 2526: 2521: 2515: 2513: 2505: 2504: 2502: 2501: 2495: 2493: 2489: 2488: 2486: 2485: 2480: 2475: 2470: 2465: 2460: 2455: 2450: 2444: 2442: 2438: 2437: 2435: 2434: 2429: 2424: 2419: 2413: 2411: 2410:Light aircraft 2407: 2406: 2404: 2403: 2398: 2393: 2388: 2383: 2378: 2373: 2368: 2363: 2358: 2353: 2348: 2343: 2338: 2333: 2328: 2323: 2318: 2312: 2310: 2306: 2305: 2303: 2302: 2297: 2292: 2290:AH-56 Cheyenne 2287: 2282: 2276: 2274: 2270: 2269: 2267: 2266: 2261: 2256: 2250: 2248: 2244: 2243: 2240: 2239: 2237: 2236: 2231: 2226: 2221: 2216: 2211: 2206: 2201: 2196: 2191: 2186: 2181: 2175: 2173: 2169: 2168: 2166: 2165: 2160: 2155: 2150: 2145: 2139: 2137: 2133: 2132: 2130: 2129: 2124: 2119: 2114: 2109: 2104: 2099: 2094: 2088: 2086: 2082: 2081: 2079: 2078: 2073: 2068: 2063: 2058: 2052: 2050: 2043: 2042:Reconnaissance 2039: 2038: 2035: 2034: 2032: 2031: 2026: 2021: 2016: 2011: 2006: 2001: 1996: 1991: 1985: 1983: 1979: 1978: 1976: 1975: 1970: 1965: 1960: 1954: 1952: 1948: 1947: 1945: 1944: 1939: 1934: 1929: 1924: 1918: 1916: 1912: 1911: 1909: 1908: 1903: 1898: 1893: 1887: 1885: 1881: 1880: 1878: 1877: 1872: 1867: 1861: 1859: 1852: 1848: 1847: 1844: 1843: 1841: 1840: 1835: 1833:Vega Starliner 1830: 1825: 1820: 1819: 1818: 1811:L-1011 Tristar 1808: 1803: 1798: 1793: 1787: 1785: 1781: 1780: 1778: 1777: 1772: 1767: 1762: 1757: 1751: 1749: 1745: 1744: 1742: 1741: 1736: 1731: 1726: 1721: 1716: 1715: 1714: 1704: 1699: 1694: 1689: 1684: 1678: 1676: 1672: 1671: 1669: 1668: 1663: 1658: 1653: 1648: 1643: 1638: 1633: 1628: 1623: 1618: 1612: 1610: 1606: 1605: 1603: 1602: 1597: 1592: 1587: 1586: 1585: 1575: 1570: 1564: 1562: 1561:Electra family 1558: 1557: 1555: 1554: 1549: 1544: 1539: 1534: 1529: 1524: 1519: 1514: 1509: 1507:1 & 2 Vega 1503: 1501: 1494: 1490: 1489: 1477: 1476: 1469: 1462: 1454: 1448: 1447: 1427: 1412: 1384: 1372: 1362:on May 1, 2021 1350: 1337: 1336:External links 1334: 1326: 1325: 1314: 1292: 1280: 1258: 1239: 1222: 1200: 1178: 1152: 1120: 1102: 1087: 1052: 1031: 998: 971: 945: 931: 898: 897: 895: 892: 890: 889: 874: 873: 868: 863: 858: 852: 847: 842: 837: 832: 827: 822: 817: 812: 807: 802: 796: 794: 791: 776: 773: 746: 743: 738: 735: 722: 719: 718: 717: 714:Maximum speed: 711: 708:Maximum speed: 697: 696: 683: 680:Fuel capacity: 677: 671: 665: 611: 608: 594:test vehicle. 471: 468: 395: 392: 385: 373: 372: 369: 342: 339: 280: 279: 272: 269: 268: 265: 264: 255: 251: 250: 247: 246:Maximum thrust 243: 242: 233: 229: 228: 227:Engine details 224: 223: 220: 219: 216: 212: 211: 210:Launch history 207: 206: 203: 199: 198: 195: 191: 190: 187: 183: 182: 178: 177: 174: 170: 169: 166: 162: 161: 156: 152: 151: 142: 138: 137: 134: 119: 118: 33: 31: 24: 17: 9: 6: 4: 3: 2: 5263: 5252: 5249: 5247: 5244: 5242: 5239: 5237: 5234: 5232: 5229: 5227: 5224: 5222: 5219: 5217: 5214: 5212: 5209: 5208: 5206: 5190: 5186: 5185: 5182: 5167: 5164: 5161: 5158: 5155: 5152: 5150: 5147: 5145: 5142: 5140: 5137: 5134: 5131: 5129: 5126: 5124: 5121: 5120: 5118: 5114: 5108: 5105: 5102: 5099: 5097: 5094: 5092: 5089: 5088: 5086: 5082: 5075: 5072: 5069: 5066: 5063: 5060: 5057: 5054: 5052: 5049: 5046: 5043: 5042: 5040: 5036: 5029: 5026: 5024: 5021: 5018: 5015: 5012: 5009: 5006: 5003: 5000: 4997: 4995: 4992: 4991: 4989: 4985: 4979: 4976: 4974: 4971: 4968: 4965: 4963: 4960: 4959: 4957: 4953: 4949: 4942: 4938: 4924: 4921: 4919: 4916: 4914: 4911: 4909: 4906: 4904: 4901: 4899: 4896: 4894: 4891: 4889: 4886: 4884: 4881: 4879: 4876: 4874: 4871: 4869: 4868: 4863: 4861: 4858: 4856: 4853: 4851: 4848: 4846: 4843: 4841: 4838: 4836: 4833: 4831: 4830:Chang Cheng-1 4828: 4825: 4822: 4820:(first stage) 4819: 4816: 4814: 4811: 4809: 4806: 4805: 4803: 4799: 4793: 4790: 4788: 4785: 4783: 4780: 4779: 4777: 4773: 4766: 4763: 4761:(first stage) 4760: 4757: 4755:(first stage) 4754: 4751: 4749: 4746: 4744: 4741: 4739: 4736: 4734:(first stage) 4733: 4730: 4728: 4725: 4723:(first stage) 4722: 4719: 4717:(first stage) 4716: 4713: 4711:(first stage) 4710: 4707: 4705:(first stage) 4704: 4701: 4696: 4693: 4692: 4691: 4688: 4686:(first stage) 4685: 4682: 4680:(first stage) 4679: 4676: 4674: 4671: 4669: 4666: 4664: 4661: 4659:(first stage) 4658: 4655: 4654: 4652: 4648: 4641: 4638: 4635: 4632: 4629: 4628:Space Shuttle 4626: 4625: 4623: 4619: 4612: 4609: 4607:(core stages) 4606: 4603: 4601:(first stage) 4600: 4597: 4596: 4594: 4590: 4586: 4579: 4575: 4571: 4567: 4560: 4555: 4553: 4548: 4546: 4541: 4540: 4537: 4525: 4522: 4520: 4517: 4515: 4512: 4510: 4507: 4505: 4502: 4501: 4499: 4496: 4492: 4486: 4483: 4478: 4475: 4473: 4470: 4468: 4465: 4460: 4457: 4455: 4452: 4450: 4447: 4445: 4442: 4440: 4437: 4436: 4434: 4430: 4424: 4421: 4419: 4416: 4414: 4411: 4409: 4406: 4404: 4401: 4400: 4398: 4394: 4388: 4385: 4383: 4380: 4378: 4375: 4373: 4370: 4368: 4365: 4363: 4360: 4359: 4357: 4353: 4347: 4346: 4341: 4339: 4338: 4333: 4331: 4330: 4325: 4320: 4319: 4314: 4309: 4308: 4303: 4302: 4300: 4296: 4291: 4283: 4278: 4276: 4271: 4269: 4264: 4263: 4260: 4247: 4244: 4241: 4240: 4237: 4231: 4228: 4226: 4223: 4221: 4218: 4216: 4213: 4211: 4208: 4206: 4203: 4201: 4198: 4196: 4193: 4192: 4190: 4186: 4176: 4173: 4171: 4168: 4166: 4163: 4161: 4158: 4156: 4153: 4151: 4148: 4146: 4143: 4141: 4138: 4133: 4131: 4128: 4126: 4123: 4121: 4118: 4116: 4113: 4111: 4108: 4103: 4101: 4098: 4097: 4095: 4091: 4085: 4082: 4080: 4077: 4075: 4072: 4068: 4065: 4063: 4060: 4059: 4058: 4055: 4053: 4050: 4048: 4045: 4041: 4038: 4036: 4033: 4032: 4030: 4028: 4025: 4023: 4020: 4018: 4015: 4013: 4010: 4008: 4005: 4003: 4000: 3998: 3995: 3993: 3990: 3988: 3985: 3983: 3980: 3978: 3975: 3973: 3970: 3968: 3965: 3963: 3960: 3958: 3955: 3953: 3950: 3948: 3945: 3943: 3940: 3939: 3937: 3933: 3927: 3924: 3920: 3917: 3916: 3915: 3912: 3910: 3907: 3905: 3902: 3900: 3897: 3895: 3892: 3890: 3887: 3885: 3882: 3880: 3877: 3875: 3872: 3870: 3867: 3865: 3862: 3860: 3857: 3855: 3852: 3850: 3847: 3845: 3842: 3840: 3837: 3835: 3832: 3830: 3827: 3825: 3822: 3820: 3817: 3815: 3812: 3810: 3807: 3805: 3802: 3800: 3797: 3796: 3794: 3790: 3787: 3781: 3775: 3772: 3770: 3767: 3765: 3762: 3760: 3757: 3755: 3752: 3751: 3749: 3743: 3738: 3734: 3726: 3721: 3719: 3714: 3712: 3707: 3706: 3703: 3690: 3680: 3677: 3675: 3672: 3670: 3667: 3665: 3662: 3657: 3652: 3650: 3647: 3642: 3640: 3637: 3635: 3632: 3630: 3627: 3622: 3620: 3617: 3612: 3610: 3607: 3605: 3602: 3600: 3597: 3595: 3592: 3587: 3582: 3580: 3577: 3575: 3572: 3567: 3565: 3562: 3557: 3555: 3552: 3547: 3545: 3542: 3540: 3537: 3532: 3527: 3525: 3522: 3520: 3517: 3516: 3514: 3510: 3504: 3501: 3499: 3496: 3494: 3491: 3489: 3486: 3484: 3481: 3479: 3476: 3474: 3471: 3469: 3466: 3464: 3461: 3459: 3456: 3454: 3451: 3449: 3446: 3444: 3441: 3439: 3436: 3434: 3431: 3429: 3426: 3424: 3421: 3419: 3416: 3414: 3411: 3409: 3406: 3404: 3401: 3399: 3396: 3394: 3391: 3387: 3384: 3383: 3382: 3379: 3377: 3374: 3372: 3369: 3367: 3364: 3362: 3359: 3357: 3354: 3352: 3349: 3347: 3344: 3342: 3339: 3337: 3334: 3332: 3329: 3327: 3324: 3322: 3319: 3317: 3314: 3312: 3309: 3307: 3304: 3302: 3299: 3297: 3294: 3292: 3289: 3287: 3284: 3282: 3279: 3277: 3274: 3272: 3269: 3267: 3264: 3262: 3259: 3257: 3254: 3252: 3249: 3247: 3244: 3242: 3239: 3237: 3234: 3232: 3229: 3227: 3224: 3222: 3219: 3217: 3214: 3212: 3209: 3207: 3204: 3202: 3199: 3197: 3194: 3192: 3189: 3187: 3184: 3182: 3179: 3177: 3174: 3172: 3169: 3167: 3164: 3162: 3159: 3157: 3154: 3152: 3149: 3147: 3144: 3142: 3139: 3137: 3134: 3132: 3129: 3127: 3124: 3122: 3119: 3117: 3114: 3112: 3109: 3107: 3104: 3102: 3099: 3097: 3094: 3092: 3089: 3087: 3084: 3082: 3079: 3077: 3074: 3072: 3069: 3067: 3064: 3062: 3059: 3057: 3054: 3052: 3049: 3047: 3044: 3042: 3039: 3037: 3034: 3032: 3029: 3027: 3024: 3022: 3019: 3017: 3014: 3012: 3009: 3007: 3004: 3002: 2999: 2997: 2994: 2992: 2989: 2987: 2984: 2982: 2979: 2977: 2974: 2972: 2969: 2967: 2964: 2962: 2959: 2957: 2954: 2952: 2949: 2947: 2944: 2942: 2939: 2937: 2934: 2932: 2929: 2927: 2924: 2922: 2919: 2917: 2914: 2912: 2909: 2907: 2904: 2902: 2899: 2897: 2894: 2892: 2889: 2887: 2884: 2882: 2879: 2877: 2874: 2872: 2869: 2867: 2864: 2862: 2859: 2857: 2854: 2852: 2849: 2847: 2844: 2842: 2839: 2837: 2834: 2832: 2829: 2827: 2824: 2822: 2819: 2817: 2814: 2812: 2809: 2807: 2804: 2802: 2799: 2797: 2794: 2792: 2789: 2787: 2784: 2782: 2779: 2777: 2774: 2772: 2769: 2767: 2764: 2762: 2759: 2757: 2754: 2752: 2749: 2747: 2744: 2742: 2739: 2737: 2734: 2732: 2729: 2727: 2724: 2722: 2719: 2714: 2709: 2707: 2704: 2699: 2697: 2694: 2692: 2689: 2687: 2684: 2682: 2679: 2677: 2674: 2672: 2669: 2667: 2664: 2659: 2657: 2654: 2652: 2649: 2644: 2642: 2639: 2637: 2634: 2632: 2629: 2627: 2624: 2622: 2619: 2617: 2614: 2612: 2609: 2604: 2602: 2599: 2597: 2594: 2592: 2589: 2584: 2582: 2579: 2577: 2574: 2572: 2569: 2567: 2564: 2560: 2557: 2556: 2555: 2552: 2550: 2547: 2542: 2540: 2537: 2535: 2532: 2530: 2527: 2525: 2522: 2520: 2517: 2516: 2514: 2512: 2506: 2500: 2497: 2496: 2494: 2490: 2484: 2481: 2479: 2476: 2474: 2471: 2469: 2466: 2464: 2461: 2459: 2456: 2454: 2451: 2449: 2446: 2445: 2443: 2439: 2433: 2432:Little Dipper 2430: 2428: 2425: 2423: 2420: 2418: 2415: 2414: 2412: 2408: 2402: 2399: 2397: 2394: 2392: 2389: 2387: 2384: 2382: 2379: 2377: 2374: 2372: 2369: 2367: 2364: 2362: 2359: 2357: 2354: 2352: 2349: 2347: 2344: 2342: 2339: 2337: 2334: 2332: 2329: 2327: 2324: 2322: 2319: 2317: 2314: 2313: 2311: 2307: 2301: 2300:VH-92 Patriot 2298: 2296: 2295:VH-71 Kestrel 2293: 2291: 2288: 2286: 2283: 2281: 2278: 2277: 2275: 2271: 2265: 2262: 2260: 2257: 2255: 2252: 2251: 2249: 2245: 2235: 2232: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2195: 2192: 2190: 2187: 2185: 2182: 2180: 2177: 2176: 2174: 2170: 2164: 2161: 2159: 2156: 2154: 2151: 2149: 2146: 2144: 2141: 2140: 2138: 2134: 2128: 2125: 2123: 2122:CP-140 Aurora 2120: 2118: 2115: 2113: 2110: 2108: 2105: 2103: 2100: 2098: 2095: 2093: 2090: 2089: 2087: 2083: 2077: 2074: 2072: 2069: 2067: 2064: 2062: 2059: 2057: 2054: 2053: 2051: 2047: 2044: 2040: 2030: 2027: 2025: 2022: 2020: 2017: 2015: 2012: 2010: 2007: 2005: 2002: 2000: 1997: 1995: 1992: 1990: 1987: 1986: 1984: 1980: 1974: 1971: 1969: 1966: 1964: 1961: 1959: 1956: 1955: 1953: 1951:Raptor family 1949: 1943: 1940: 1938: 1935: 1933: 1930: 1928: 1925: 1923: 1920: 1919: 1917: 1913: 1907: 1904: 1902: 1899: 1897: 1894: 1892: 1889: 1888: 1886: 1882: 1876: 1873: 1871: 1868: 1866: 1863: 1862: 1860: 1856: 1853: 1849: 1839: 1836: 1834: 1831: 1829: 1826: 1824: 1821: 1817: 1814: 1813: 1812: 1809: 1807: 1804: 1802: 1799: 1797: 1794: 1792: 1789: 1788: 1786: 1782: 1776: 1773: 1771: 1768: 1766: 1763: 1761: 1758: 1756: 1753: 1752: 1750: 1746: 1740: 1737: 1735: 1732: 1730: 1727: 1725: 1722: 1720: 1717: 1713: 1710: 1709: 1708: 1705: 1703: 1700: 1698: 1695: 1693: 1690: 1688: 1685: 1683: 1680: 1679: 1677: 1673: 1667: 1664: 1662: 1659: 1657: 1654: 1652: 1649: 1647: 1644: 1642: 1639: 1637: 1634: 1632: 1629: 1627: 1624: 1622: 1619: 1617: 1616:Constellation 1614: 1613: 1611: 1607: 1601: 1598: 1596: 1593: 1591: 1588: 1584: 1581: 1580: 1579: 1576: 1574: 1571: 1569: 1566: 1565: 1563: 1559: 1553: 1550: 1548: 1545: 1543: 1540: 1538: 1535: 1533: 1530: 1525: 1523: 1520: 1518: 1515: 1513: 1512:3 Air Express 1510: 1508: 1505: 1504: 1502: 1498: 1495: 1491: 1486: 1482: 1475: 1470: 1468: 1463: 1461: 1456: 1455: 1452: 1441: 1434: 1433: 1428: 1423: 1419: 1418: 1413: 1406:September 11, 1398: 1391: 1390: 1385: 1380: 1379: 1373: 1366:September 11, 1361: 1357: 1356: 1351: 1349: 1345: 1340: 1339: 1333: 1332: 1323: 1318: 1307: 1301: 1299: 1297: 1289: 1284: 1276: 1272: 1268: 1262: 1254: 1250: 1243: 1236: 1235:News Releases 1232: 1226: 1218: 1211: 1204: 1196: 1189: 1182: 1166: 1162: 1156: 1149: 1137: 1133: 1127: 1125: 1116: 1112: 1106: 1098: 1091: 1072: 1065: 1059: 1057: 1048: 1044: 1038: 1036: 1027: 1023: 1019: 1013: 1011: 1009: 1007: 1005: 1003: 986: 982: 975: 960: 956: 949: 943: 938: 936: 919: 915: 908: 906: 904: 899: 887: 876: 872: 869: 867: 864: 862: 859: 856: 853: 851: 850:Quad (rocket) 848: 846: 843: 841: 838: 836: 833: 831: 828: 826: 823: 821: 818: 816: 813: 811: 808: 806: 803: 801: 798: 797: 790: 788: 785: 781: 772: 770: 767: 762: 761:-5A engines. 760: 756: 752: 751:Space Shuttle 742: 734: 732: 726: 715: 712: 709: 706: 705: 704: 702: 694: 693:rocket engine 691: 688:2 × XRS-2200 687: 684: 681: 678: 675: 672: 669: 666: 663: 660: 659: 658: 656: 647: 643: 639: 635: 631: 629: 628:Space Shuttle 625: 621: 620:business case 617: 607: 603: 599: 595: 593: 589: 585: 584:Space Shuttle 581: 577: 573: 569: 564: 562: 558: 557:Malmstrom AFB 553: 551: 548:southwest of 547: 543: 536: 531: 527: 525: 524:Space Shuttle 521: 517: 513: 509: 500: 492: 484: 476: 467: 465: 461: 457: 452: 449: 445: 441: 432: 427: 423: 420: 416: 415:mass fraction 410: 408: 404: 399: 384: 380: 378: 370: 367: 366: 365: 362: 360: 356: 352: 348: 338: 334: 332: 329: 325: 321: 317: 314: 310: 306: 303: 299: 295: 291: 287: 276: 270: 266: 263: 259: 256: 252: 248: 244: 241: 238: 234: 230: 225: 221: 217: 213: 208: 204: 200: 196: 192: 188: 184: 179: 175: 171: 168:United States 167: 163: 160: 157: 153: 150: 147: 143: 139: 132: 127: 115: 112: 104: 93: 90: 86: 83: 79: 76: 72: 69: 65: 62: –  61: 57: 56:Find sources: 50: 46: 40: 39: 34:This article 32: 28: 23: 22: 16: 5187:* indicates 5159: 5051:Dream Chaser 5017:SpaceShipTwo 5011:SpaceShipOne 4866: 4605:Falcon Heavy 4344: 4336: 4328: 4317: 4307:Venture Star 4306: 4304: 4242:Not assigned 3976: 3783:Experimental 3693:Not assigned 2370: 2341:Star Clipper 2309:Experimental 2136:Other crewed 2102:PV-2 Harpoon 2097:PV-1 Ventura 1440:the original 1431: 1422:the original 1416: 1404:, retrieved 1397:the original 1388: 1377: 1364:, retrieved 1360:the original 1354: 1329: 1317: 1283: 1275:the original 1270: 1261: 1252: 1242: 1234: 1225: 1216: 1203: 1194: 1181: 1171:February 16, 1169:. Retrieved 1165:the original 1155: 1147: 1140:. Retrieved 1136:the original 1115:the original 1105: 1090: 1078:. Retrieved 1071:the original 1046: 1026:the original 1022:NASA Spinoff 1021: 989:. Retrieved 985:the original 974: 962:. Retrieved 958: 948: 924:February 25, 922:. Retrieved 918:the original 778: 763: 748: 740: 727: 724: 713: 707: 700: 698: 685: 679: 673: 667: 661: 654: 651: 632: 613: 604: 600: 596: 565: 554: 539: 505: 453: 436: 419:without fuel 411: 400: 397: 394:Cancellation 382: 374: 363: 344: 335: 331:aerodynamics 328:lifting body 285: 283: 173:Project cost 155:Manufacturer 107: 98: 88: 81: 74: 67: 55: 43:Please help 38:verification 35: 15: 5231:Spaceplanes 5144:Silver Dart 5076:upper stage 5005:Gemini SC-2 4962:Boeing X-37 4923:VentureStar 4855:Hyperbola-2 4782:Kankoh-maru 4715:Orbex Prime 4684:Hyperbola-3 4663:Ariane Next 4642:* (booster) 4636:* (booster) 4611:New Shepard 4449:MightySat-2 4444:MightySat-1 3935:26–50 2336:Senior Prom 2273:Helicopters 2194:Desert Hawk 1982:Other types 1784:Other types 1590:18 Lodestar 1500:Vega family 1142:January 30, 991:October 27, 912:Mark Wade. 825:Kankoh-maru 805:Blue Origin 701:Performance 686:Powerplant: 624:VentureStar 568:Skunk Works 377:VentureStar 294:VentureStar 5205:Categories 5189:suborbital 4945:Spacecraft 4908:Tianjiao-1 4903:Sea Dragon 4826:(boosters) 4759:Tianlong-3 4690:Long March 4570:spacecraft 4497:satellites 4480:(canceled) 4462:(canceled) 4459:TechSat-21 4322:(canceled) 4318:Blackswift 4311:(canceled) 4248:Unofficial 4040:X-44 (UAV) 4035:X-44 MANTA 3792:1–25 2483:Trident II 2453:High Virgo 2417:Big Dipper 2331:Senior Peg 2234:X-44 (UAV) 2127:P-7 LRAACA 2112:S-3 Viking 1973:X-44 MANTA 1600:43 Harpoon 1595:37 Ventura 1583:414 Hudson 1568:10 Electra 1532:7 Explorer 1517:4 Explorer 1493:Transports 894:References 766:Rocketdyne 440:Globalstar 254:Propellant 232:Powered by 146:spaceplane 71:newspapers 5154:X-30 NASP 5116:Cancelled 5084:Proposals 5070:(capsule) 5064:(capsule) 5058:(capsule) 5047:(capsule) 5001:(capsule) 4865:Hopper / 4840:Falcon 1e 4775:Proposals 4767:(engines) 4709:New Glenn 4345:WaveRider 4093:51– 2478:Trident I 2463:Ping-Pong 2316:Have Blue 2117:P-3 Orion 1801:Excalibur 1552:DL.1 Vega 771:engines. 731:autoclave 460:cryogenic 444:Teledesic 316:cryogenic 313:composite 5191:vehicles 5074:Starship 5056:Mengzhou 4978:Shenlong 4973:Dragon 2 4845:Falcon 5 4801:Canceled 4753:Terran R 4721:Pallas-1 4678:Electron 4668:CALLISTO 4599:Falcon 9 4524:TacSat-5 4519:TacSat-4 4514:TacSat-3 4509:TacSat-2 4504:TacSat-1 4477:PnPSat-1 4413:Coriolis 4188:See also 3151:400 (II) 3031:282 (II) 2473:Poseidon 2441:Missiles 2422:Explorer 2247:Trainers 1537:8 Sirius 1481:Lockheed 1378:X planes 1375:"X-33", 1080:June 30, 964:April 9, 793:See also 745:Rockwell 644:test at 454:In 2004 386:—  237:XRS-2200 218:Canceled 141:Function 101:May 2011 5139:Mustard 4987:Retired 4969:(CSSHQ) 4867:Phoenix 4808:Adeline 4703:Miura 5 4621:Retired 4372:FASTRAC 4362:Program 4316:HTV-3X 3737:X-plane 3146:400 (I) 3026:282 (I) 2511:numbers 2499:J37/T35 2492:Engines 2468:Polaris 2458:Perseus 2214:Polecat 2209:MQM-105 2179:Aequare 1942:CL-1200 1932:NF-104A 1806:JetStar 1712:EC-130H 1547:9 Orion 1348:YouTube 769:RS-2100 716:Mach 13 662:Length: 448:Iridium 341:History 85:scholar 5128:Kliper 5091:Avatar 4999:Dragon 4955:Active 4913:Spiral 4860:HOPE-X 4824:Ares V 4818:Ares I 4813:Angara 4787:SASSTO 4765:Vulcan 4738:Skylon 4727:RLV-TD 4673:CORONA 4634:Petrel 4592:Active 4485:ANGELS 4467:XSS-11 4454:XSS-10 4418:C/NOFS 4343:X-51A 4335:X-40A 2280:CL-475 2224:RQ-170 2184:AQM-60 2143:CL-400 2092:Hudson 1937:CL-288 1922:XF-104 1828:Saturn 1823:L-2000 1770:CP-140 1734:WC-130 1729:MC-130 1724:LC-130 1719:KC-130 1707:EC-130 1702:HC-130 1697:DC-130 1692:AC-130 1687:C-130J 1661:EC-121 1641:L-1249 1636:L-1049 1522:5 Vega 1267:"X-33" 914:"X-33" 668:Width: 446:, and 407:weight 322:, the 215:Status 202:Stages 186:Height 87:  80:  73:  66:  58:  5107:SUSIE 5068:Orion 4898:Roton 4873:HOTOL 4850:Nexus 4408:TSX-5 4403:ARGOS 4387:ELFIN 4382:DANDE 4377:CUSat 4327:X-37 4305:X-33 4288:U.S. 4230:XQ-67 4225:XQ-58 4220:M2-F3 4215:M2-F2 4210:M2-F1 4205:HL-10 4200:HiMAT 4067:X-47C 4062:X-47B 4031:X-44 3919:X-24C 3624:27–32 3559:12–14 2509:Model 2448:Agena 2427:L-402 2366:X-26B 2361:X-24C 2346:XC-35 2326:L-301 2321:L-133 2285:XH-51 2264:T-50A 2229:SR-72 2066:YF-12 2029:YP-24 2024:XF-90 2019:XFM-2 2014:F-117 1989:A-4AR 1968:FB-22 1958:YF-22 1927:F-104 1875:XP-58 1870:XP-49 1796:C-141 1755:L-188 1739:L-100 1682:C-130 1666:XB-30 1656:C-121 1631:L-749 1626:L-649 1621:L-049 1443:(PDF) 1436:(PDF) 1400:(PDF) 1393:(PDF) 1309:(PDF) 1290:image 1213:(PDF) 1191:(PDF) 1074:(PDF) 1067:(PDF) 1047:DVIDS 871:Zarya 787:DC-XA 759:RL-10 592:DC-XA 273:[ 92:JSTOR 78:books 5160:X-33 5149:SOAR 5133:Lynx 5028:X-15 4888:MAKS 4657:Amur 4640:Skua 4568:and 4472:ISAT 4439:TAOS 4195:AD-1 4175:X-66 4170:X-65 4165:X-64 4160:X-63 4155:X-62 4150:X-61 4145:X-60 4140:X-59 4135:X-58 4130:X-57 4125:X-56 4120:X-55 4115:X-54 4110:X-53 4105:X-52 4100:X-51 4084:X-50 4079:X-49 4074:X-48 4057:X-47 4052:X-46 4047:X-45 4027:X-43 4022:X-42 4017:X-41 4012:X-40 4007:X-39 4002:X-38 3997:X-37 3992:X-36 3987:X-35 3982:X-34 3977:X-33 3972:X-32 3967:X-31 3962:X-30 3957:X-29 3952:X-28 3947:X-27 3942:X-26 3926:X-25 3914:X-24 3909:X-23 3904:X-22 3899:X-21 3894:X-20 3889:X-19 3884:X-18 3879:X-17 3874:X-16 3869:X-15 3864:X-14 3859:X-13 3854:X-12 3849:X-11 3844:X-10 3549:7–10 3512:Vega 3503:2329 3498:2000 3493:1980 3488:1800 3483:1700 3478:1649 3473:1600 3468:1549 3463:1449 3458:1400 3453:1329 3448:1249 3443:1237 3438:1236 3433:1235 3428:1201 3423:1200 3418:1195 3413:1149 3408:1132 3403:1090 3398:1080 3393:1060 3381:1049 3376:1026 3371:1020 3366:1011 3361:1010 3356:1000 2401:XV-4 2391:X-59 2386:X-56 2381:X-55 2376:X-35 2371:X-33 2356:X-17 2254:T-33 2219:RQ-3 2204:Fury 2172:UAVs 2163:TR-X 2158:TR-1 2076:D-21 2071:M-21 2056:A-12 2009:F-35 2004:F-21 1999:F-16 1963:F-22 1901:T-33 1896:F-94 1891:F-80 1865:P-38 1765:EP-3 1651:C-69 1483:and 1408:2007 1368:2007 1355:X-33 1173:2011 1144:2008 1082:2011 993:2009 966:2023 959:NASA 926:2015 588:VTVL 578:and 542:VTHL 510:and 508:NASA 359:X-34 284:The 194:Mass 181:Size 124:X-33 64:news 5123:H-2 4918:V-2 4878:K-1 4423:DSX 4367:3CS 3839:X-9 3834:X-8 3829:X-7 3824:X-6 3819:X-5 3814:X-4 3809:X-3 3804:X-2 3799:X-1 3774:S-5 3769:S-4 3764:S-3 3759:S-2 3754:S-1 3351:995 3346:985 3341:984 3336:981 3331:980 3326:977 3321:949 3316:934 3311:915 3306:901 3301:880 3296:849 3291:840 3286:823 3281:822 3276:785 3271:780 3266:760 3261:749 3256:704 3251:685 3246:680 3241:649 3236:645 3231:622 3226:595 3221:580 3216:549 3211:522 3206:520 3201:500 3196:489 3191:480 3186:475 3181:449 3176:437 3171:422 3166:414 3161:407 3156:402 3141:389 3136:382 3131:380 3126:379 3121:351 3116:349 3111:346 3106:331 3101:330 3096:329 3091:325 3086:322 3081:320 3076:301 3071:300 3066:298 3061:296 3056:295 3051:293 3046:288 3041:286 3036:285 3021:249 3016:246 3011:245 3006:244 3001:222 2996:212 2991:210 2986:207 2981:206 2976:204 2971:200 2966:199 2961:193 2956:189 2951:188 2946:186 2941:185 2936:182 2931:171 2926:170 2921:149 2916:144 2911:141 2906:140 2901:137 2896:136 2891:133 2886:129 2881:122 2876:105 2871:104 2866:100 2559:A/D 2396:XFV 2351:X-7 2259:T2V 2148:U-2 1994:A-9 1906:T2V 1838:R6V 1816:RAF 1791:C-5 1775:P-7 1760:P-3 1346:on 570:of 559:in 262:LH2 258:LOX 47:by 5207:: 3679:43 3674:42 3669:41 3664:40 3659:39 3654:38 3649:37 3644:36 3639:35 3634:34 3629:33 3619:26 3614:25 3609:24 3604:23 3599:22 3594:21 3589:20 3584:19 3579:18 3574:17 3569:16 3564:15 3554:11 2861:99 2856:94 2851:93 2846:92 2841:91 2836:90 2831:89 2826:88 2821:87 2816:86 2811:85 2806:84 2801:83 2796:82 2791:81 2786:80 2781:75 2776:62 2771:61 2766:60 2761:52 2756:51 2751:50 2746:49 2741:45 2736:44 2731:42 2726:41 2721:40 2716:39 2711:38 2706:37 2701:36 2696:35 2691:34 2686:33 2681:32 2676:31 2671:30 2666:29 2661:28 2656:27 2651:26 2646:25 2641:24 2636:23 2631:22 2626:21 2621:20 2616:19 2611:18 2606:17 2601:16 2596:15 2591:14 2586:13 2581:12 2576:11 2571:10 1295:^ 1269:. 1251:. 1233:, 1215:. 1193:. 1146:. 1123:^ 1055:^ 1045:. 1034:^ 1020:. 1001:^ 957:. 934:^ 902:^ 590:) 552:. 466:. 442:, 409:. 349:, 333:. 311:, 235:2 5168:* 5162:* 5156:* 5135:* 5103:* 5030:* 5019:* 5013:* 5007:* 4613:* 4558:e 4551:t 4544:v 4281:e 4274:t 4267:v 3735:( 3724:e 3717:t 3710:v 3544:6 3539:5 3534:4 3529:3 3524:2 3519:1 3386:A 2566:9 2554:8 2549:7 2544:6 2539:5 2534:4 2529:3 2524:2 2519:1 1527:6 1473:e 1466:t 1459:v 1426:. 1411:. 1383:. 1371:. 1311:. 1255:. 1219:. 1197:. 1175:. 1084:. 1049:. 995:. 968:. 928:. 277:] 260:/ 205:1 114:) 108:( 103:) 99:( 89:· 82:· 75:· 68:· 41:.

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"Lockheed Martin X-33"
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spaceplane
technology demonstrator
Lockheed Martin
XRS-2200
linear aerospikes
LOX
LH2
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suborbital spaceplane
VentureStar
reusable launch vehicle
single-stage-to-orbit
reusable launch vehicles
thermal protection systems
composite
cryogenic
liquid hydrogen
aerospike engine

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