Knowledge (XXG)

Solid Rocket Motor Upgrade

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test segment was lost due to improper fuel casting. In 1990, prior to the first stacking of the motor, the crane assembling the booster dropped a segment, causing it to roll away from the test area and explode. One worker was killed and nine injured. The mishap also caused the first launch of a Titan IV with SRMU boosters to be delayed; originally, the new booster was expected to launch in 1991. One year later, in the SRMU's first test firing, the motor exploded upon ignition. The motor had to be thoroughly redesigned. In the meantime, Martin Marietta placed an order for more UA120 motors, as the SRMU would not be ready in time. At the same time, Hercules' costs severely exceeded the value of the contract it had been awarded. The
317:. An electrical detonator is used to activate pyrotechnics for booster ignition and staging, and for the flight termination system, which consists of a shaped charge explosive designed to destroy the booster in flight. The booster is attached to the vehicle core by a reinforced aft skirt near the base of the motor, which also transmits the thrust loads between the two structures. This skirt also contains the assembly for the thrust vectoring control (TVC) system. The nozzle itself is made of steel, wrapped in an epoxy composite similar to that on the motor segments. Additional structural elements include steel bands at segment joins. Each segment is manufactured separately, then integrated at the launch site. 27: 476: 464: 43: 428: 452: 392: 416: 404: 440: 2171: 375:
By 1994, it had become apparent that Martin Marietta's additional order for UA1207 boosters, combined with a decline in demand for launches, was resulting in a surplus of completed Titan IV carrier rockets. As a result, the SRMU would not be needed until 1997. A total of 17 flight sets of boosters
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Numerous delays took place during development. Martin Marietta changed the majority of its design requirements for the SRMU between 1988 and 1990, rendering progress slow. The SRMU was the largest motor Hercules had ever built, and it was also its first use of HTPB binder. Early in development, a
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nozzle, which can move up to 6 degrees. The hydraulic system features redundant pumps that keep the fluid loop at 3,150 psi (21.7 MPa). These characteristics were chosen for greater performance and higher reliability compared to its predecessor, the UA1207, which was manufactured from 7
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In 2000, the carbon-phenolic coated nozzle of the SRMU was redesigned. The new nozzle used new materials that were cleaner than those previously used, which were incompliant with new environmental regulations.
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is designed to generate highest thrust before 40 seconds, and to rapidly decrease thrust after 120 seconds. Two SRMUs provide all of the Titan IV-B's thrust at liftoff and function as a "stage 0"; the
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segments and used liquid fuel injection for steering. There are six stage separation motors, three fore and three aft, which push the empty casing away from the launcher's core after booster burnout.
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and aluminium, joined by a HTPB binder. Upon launch, the booster weighs approximately 776,000 lbs (352,000 kg). The SRMU participates in vehicle control using a hydraulically driven
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in 1993 directed the Air Force to provide an additional $ 350 million to allow Hercules to finish work on the SRMU. Before the end of 1994, the booster had finally been qualified for flight.
463: 893: 475: 277:. Originally intended to fly in 1990, it instead first flew in 1997 due to a protracted development and lack of demand. The SRMU performed successfully on all of its flights. 2308: 2504: 266: 1126: 617: 2303: 439: 364:, issued a request for proposals for a new booster to be used on Titan. A fixed-price contract was awarded to Hercules Inc. for the new motor. 403: 1157: 496: 26: 1047:
Chamberlain, Roger, "Paper Session II-C - Titan IV Heavy-Lift Space Launch System Evolution" (1994). The Space Congress® Proceedings. 3.
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The SRMU's electrical equipment and instrumentation is located within the nosecone at the front of the booster. Like the Space Shuttle's
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carrier rockets. First flown in 1965, the UA120s were built from many segments and had a heavy thrust vectoring system that sprayed
337: 262: 111: 258: 786: 1822: 2298: 2293: 2288: 1912: 415: 1048: 868: 697: 1119: 2494: 427: 843: 340:, in which a seal joining two solid rocket motor segments failed, destroying the vehicle and killing all 7 crew, the 1777: 1496: 1458: 894:"HERCULES PROBES FAILURE OF ADHESION IN TITAN IV SOLID ROCKET MOTOR OFFICIALS SAY 'ANOMALY' WON'T CAUSE SETBACK" 818: 1838: 1167: 1104: 2179: 1405: 1398: 1258: 1112: 998: 341: 321: 238: 2509: 2263: 2132: 1902: 1892: 1583: 1565: 451: 369: 628: 2453: 2448: 2398: 2318: 2278: 2273: 2268: 2142: 1917: 1867: 1805: 1253: 919: 501: 360:
into the nozzle flow to deflect thrust. Therefore, in 1987, the Air Force and the Titan's manufacturer,
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As is typical for solid rocket motors, thrust varies throughout the course of the burn. The SRMU's
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Quick-Reaction Report on the Management of the Titan IV Solid Rocket Motor Upgrade Subcontract
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https://commons.erau.edu/space-congress-proceedings/proceedings-1994-31st/april-27-1994/3
545: 1747: 1727: 1722: 1717: 1341: 1178: 1146: 1025:"H.R.5504 - 102nd Congress (1991-1992): Department of Defense Appropriations Act, 1993" 314: 1084: 2488: 1752: 1536: 1452: 1378: 1197: 1135: 1085:"Spaceflight Now | Breaking News | Titan 4 solid rocket motor test firing successful" 753:
Saemisch, Michael; Jackson, Donald; Saemisch, Michael; Jackson, Donald (1997-07-06),
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The SRMU is a three-segment solid rocket motor. Each segment has a casing wound from
246: 48: 761:, Joint Propulsion Conferences, American Institute of Aeronautics and Astronautics, 726:, Joint Propulsion Conferences, American Institute of Aeronautics and Astronautics, 664:, Joint Propulsion Conferences, American Institute of Aeronautics and Astronautics, 586:, Joint Propulsion Conferences, American Institute of Aeronautics and Astronautics, 325: 1842: 1809: 1742: 1737: 1732: 693: 290: 754: 719: 657: 579: 798: 561: 1877: 1060: 328:
on the core ignites at T+131 seconds, 15 seconds before booster separation.
269:, it was an ambitious upgrade building on Hercules' experience developing a 2338: 2333: 2253: 2238: 2223: 1927: 1631: 242: 153: 58: 2468:* Different versions of the engine use different propellant combinations 766: 731: 669: 658:"Titan IV Solid Rocket Motor Upgrade Program at Alliant Techsystems Inc" 591: 2433: 2258: 2233: 2228: 1988: 1983: 1978: 1973: 1968: 1963: 1958: 1953: 1897: 1673: 1636: 1626: 1621: 1595: 1484: 1371: 1316: 1310: 2388: 2122: 2117: 2086: 2055: 2050: 2045: 2040: 2035: 2025: 2014: 2008: 2003: 1998: 1993: 1937: 1887: 1762: 1706: 1699: 1683: 1667: 1661: 1656: 1651: 1646: 1641: 1576: 1570: 1560: 1436: 1429: 1268: 1219: 294: 253:), it was intended to be a high-performance, low-cost upgrade to the 553: 376:
were ordered; the last were used on the last Titan flight in 2005.
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34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
297:. The casing is filled with a fuel grain composed primarily of 2368: 2363: 2358: 2348: 510:- contemporary Hercules development using similar technology 469:
2 SRMU loft Titan IV-B carrying the Cassini-Huygens probe
944:"TITAN MOTOR ACCIDENT DEALT YET ANOTHER BLOW TO HERCULES" 1061:"Spaceflight Now | Titan Launch Report | Goodbye, Titan" 969:"HERCULES SAYS ROCKET BLAST WON'T STOP TITAN IV PROJECT" 755:"Lessons learned from Titan IV SRMU ordnance programs" 445:
An SRMU on the stand at the Museum of the US Air Force
313:, operating voltage for the electrical system was 28V 718:
Rudman, Thomas; De, Duane; Earl, Steve (1998-07-13),
2178: 2107: 1804: 1797: 1528: 1519: 1367: 1186: 1177: 1166: 578:Wilson, W.; Anderson, J.; Meyden, M. (1992-07-06), 223: 215: 207: 202: 192: 184: 173: 162: 151: 143: 138: 130: 125: 117: 107: 100: 92: 82: 74: 64: 54: 36: 1003:Department of Defense Office of Inspector General 409:Integrated SRMU at the Museum of the US Air Force 257:boosters previously used on Titan IV. Wound from 869:"HERCULES: BOOMING COMPANY CELEBRATES 75TH YEAR" 720:"Titan IVB, SRMU and Centaur propulsion systems" 920:"Titan 4 Motor Explosion Blamed on Design Flaw" 787:"COMPANY NEWS; HERCULES WINS MARIETTA CONTRACT" 530:"Titan IV motor failure and redesign analyses" 528:Chang, I-Shih; Patel, N. R.; Yang, S. (1995). 1120: 656:Foote, Jeffrey; Foote, Jeffrey (1997-07-06), 397:SRMU lifted at the Museum of the US Air Force 8: 759:33rd Joint Propulsion Conference and Exhibit 662:33rd Joint Propulsion Conference and Exhibit 584:28th Joint Propulsion Conference and Exhibit 19: 1801: 1525: 1183: 1174: 1127: 1113: 1105: 844:"HERCULES FUELS INITIAL TITAN IV SEGMENT" 267:ammonium perchlorate composite propellant 481:Ignition of SRMU on a military mission ( 520: 387: 612: 610: 608: 606: 289:composite and an insulation system of 18: 16:American solid propellant rocket motor 993: 991: 989: 7: 1158:Comparison of orbital rocket engines 748: 746: 713: 711: 709: 707: 688: 686: 684: 651: 649: 573: 571: 497:Comparison of orbital rocket engines 2505:Rocket engines of the United States 819:"FIRM WITHHELD DATA, HERCULES SAYS" 700:from the original on May 10, 2022. 421:Workers push an SRMU into position 241:that was used as a booster on the 14: 534:Journal of Spacecraft and Rockets 338:Space Shuttle Challenger Disaster 263:hydroxyl-terminated polybutadiene 20:Solid Rocket Motor Upgrade (SRMU) 2169: 474: 462: 450: 438: 426: 414: 402: 390: 41: 25: 259:carbon-fibre-reinforced polymer 245:B launch vehicle. Developed by 227:80,611 lb (36,565 kg) 158:859.5 psi (5,926 kPa) 147:6.41 MN (1,440,502 lbf) average 31:Titan IV-B with 2 SRMU boosters 1023:Murtha, John P. (1992-10-06). 580:"Titan IV SRMU PQM-1 overview" 180:251.4 s (2.465 km/s) 169:285.6 s (2.801 km/s) 1: 1954:RD-0202 to 0206, 0208 to 0213 918:Chandler, John (1991-05-29). 433:SRMU nosecones and segments 2526: 235:Solid Rocket Motor Upgrade 2464: 2167: 1153: 24: 344:was concerned about the 336:In the wake of the 1986 1999:RD-250 to 252, 261, 262 999:"Titan IV Requirements" 504:- Castor 600 comparable 1065:www.spaceflightnow.com 696:(Report). 1992-09-02. 370:United States Congress 273:for the Space Shuttle 2475:are under development 1863:YF-20, 21, 22, 24, 25 1642:RD-107, 108, 117, 118 618:"ATK Product Catalog" 502:Castor (rocket stage) 508:Graphite-Epoxy Motor 358:dinitrogen tetroxide 299:ammonium perchlorate 78:Solid rocket booster 1964:RD-0216, 0217, 0235 1627:RD-0107, 0108, 0110 767:10.2514/6.1997-2957 732:10.2514/6.1998-3194 670:10.2514/6.1997-2991 592:10.2514/6.1992-3819 546:1995JSpRo..32..612C 346:United Technologies 271:filament-wound case 69:Alliant Techsystems 21: 2495:Solid-fuel rockets 1089:spaceflightnow.com 791:The New York Times 239:solid rocket motor 2482: 2481: 2424:Space Shuttle SRB 2165: 2164: 2103: 2102: 1793: 1792: 1515: 1514: 924:Los Angeles Times 785:Ap (1987-10-21). 352:boosters used on 231: 230: 211:34.26 m (1349 in) 37:Country of origin 2517: 2173: 2172: 2009:RD-263, 268, 273 1940:along other LREs 1802: 1662:RD-191, 151, 181 1526: 1184: 1175: 1129: 1122: 1115: 1106: 1099: 1098: 1096: 1095: 1081: 1075: 1074: 1072: 1071: 1057: 1051: 1045: 1039: 1038: 1036: 1035: 1029:www.congress.gov 1020: 1014: 1013: 1011: 1010: 995: 984: 983: 981: 980: 965: 959: 958: 956: 955: 940: 934: 933: 931: 930: 915: 909: 908: 906: 905: 890: 884: 883: 881: 880: 865: 859: 858: 856: 855: 840: 834: 833: 831: 830: 815: 809: 808: 806: 805: 782: 776: 775: 774: 773: 750: 741: 740: 739: 738: 715: 702: 701: 690: 679: 678: 677: 676: 653: 644: 643: 641: 639: 634:on July 30, 2018 633: 627:. Archived from 622: 614: 601: 600: 599: 598: 575: 566: 565: 525: 478: 466: 454: 442: 430: 418: 406: 394: 303:thrust-vectoring 194:Thrust vectoring 175:Specific impulse 164:Specific impulse 102:Solid-fuel motor 47: 45: 44: 29: 22: 2525: 2524: 2520: 2519: 2518: 2516: 2515: 2514: 2485: 2484: 2483: 2478: 2460: 2181: 2174: 2170: 2161: 2099: 1989:RD-0255 to 0257 1984:RD-0243 to 0245 1846: 1835: 1831: 1825: 1813: 1789: 1530: 1521: 1511: 1375: 1369: 1363: 1194: 1188: 1169: 1162: 1149: 1147:launch vehicles 1133: 1103: 1102: 1093: 1091: 1083: 1082: 1078: 1069: 1067: 1059: 1058: 1054: 1046: 1042: 1033: 1031: 1022: 1021: 1017: 1008: 1006: 997: 996: 987: 978: 976: 967: 966: 962: 953: 951: 942: 941: 937: 928: 926: 917: 916: 912: 903: 901: 892: 891: 887: 878: 876: 867: 866: 862: 853: 851: 842: 841: 837: 828: 826: 817: 816: 812: 803: 801: 784: 783: 779: 771: 769: 752: 751: 744: 736: 734: 717: 716: 705: 692: 691: 682: 674: 672: 655: 654: 647: 637: 635: 631: 620: 616: 615: 604: 596: 594: 577: 576: 569: 554:10.2514/3.26661 527: 526: 522: 517: 493: 486: 479: 470: 467: 458: 457:SRMU on display 455: 446: 443: 434: 431: 422: 419: 410: 407: 398: 395: 386: 362:Martin Marietta 334: 283: 42: 40: 32: 17: 12: 11: 5: 2523: 2521: 2513: 2512: 2507: 2502: 2497: 2487: 2486: 2480: 2479: 2477: 2476: 2469: 2465: 2462: 2461: 2459: 2458: 2457: 2456: 2451: 2446: 2441: 2436: 2431: 2426: 2421: 2416: 2411: 2406: 2401: 2396: 2391: 2385:United States 2383: 2382: 2381: 2376: 2371: 2366: 2361: 2356: 2351: 2343: 2342: 2341: 2336: 2328: 2327: 2326: 2321: 2313: 2312: 2311: 2306: 2301: 2296: 2291: 2283: 2282: 2281: 2276: 2271: 2266: 2261: 2256: 2251: 2246: 2241: 2236: 2231: 2226: 2218: 2217: 2216: 2213: 2210: 2205: 2200: 2195: 2186: 2184: 2176: 2175: 2168: 2166: 2163: 2162: 2160: 2159: 2158: 2157: 2151: 2145: 2139:United States 2137: 2136: 2135: 2127: 2126: 2125: 2120: 2111: 2109: 2105: 2104: 2101: 2100: 2098: 2097: 2096: 2095: 2089: 2084: 2078: 2073: 2068: 2062:United States 2060: 2059: 2058: 2053: 2048: 2043: 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Inc. 2508: 2506: 2503: 2501: 2498: 2496: 2493: 2492: 2490: 2474: 2470: 2467: 2466: 2463: 2455: 2452: 2450: 2447: 2445: 2442: 2440: 2437: 2435: 2432: 2430: 2427: 2425: 2422: 2420: 2417: 2415: 2412: 2410: 2407: 2405: 2402: 2400: 2397: 2395: 2392: 2390: 2387: 2386: 2384: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2355: 2352: 2350: 2347: 2346: 2344: 2340: 2337: 2335: 2332: 2331: 2329: 2325: 2322: 2320: 2317: 2316: 2314: 2310: 2307: 2305: 2302: 2300: 2297: 2295: 2292: 2290: 2287: 2286: 2284: 2280: 2277: 2275: 2272: 2270: 2267: 2265: 2262: 2260: 2257: 2255: 2252: 2250: 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2222: 2221: 2219: 2214: 2211: 2209: 2206: 2204: 2201: 2199: 2196: 2194: 2191: 2190: 2188: 2187: 2185: 2183: 2177: 2155: 2152: 2149: 2146: 2144: 2141: 2140: 2138: 2134: 2131: 2130: 2128: 2124: 2123:RD-211 to 214 2121: 2119: 2116: 2115: 2113: 2112: 2110: 2106: 2093: 2090: 2088: 2085: 2082: 2079: 2077: 2074: 2072: 2069: 2067: 2064: 2063: 2061: 2057: 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1638: 1635: 1633: 1630: 1628: 1625: 1623: 1622:RD-0105, 0109 1620: 1618: 1615: 1613: 1610: 1608: 1605: 1604: 1602: 1598: 1597: 1593: 1592: 1590: 1586: 1585: 1581: 1579: 1578: 1574: 1572: 1569: 1567: 1564: 1562: 1559: 1557: 1556: 1552: 1550: 1547: 1546: 1544: 1543: 1541: 1538: 1534: 1527: 1524: 1518: 1506: 1505: 1501: 1499: 1498: 1494: 1493: 1491: 1487: 1486: 1482: 1481: 1479: 1475: 1474: 1470: 1468: 1467: 1463: 1461: 1460: 1456: 1454: 1451: 1449: 1446: 1445: 1443: 1439: 1438: 1434: 1432: 1431: 1427: 1425: 1424: 1420: 1418: 1415: 1413: 1410: 1408: 1407: 1403: 1401: 1400: 1396: 1394: 1393: 1389: 1388: 1386: 1385: 1383: 1380: 1376: 1366: 1358: 1355: 1353: 1350: 1348: 1345: 1343: 1340: 1338: 1337: 1333: 1331: 1330: 1326: 1325: 1323: 1319: 1318: 1314: 1312: 1309: 1307: 1306:KVD-1 (RD-56) 1304: 1303: 1301: 1297: 1296: 1292: 1290: 1287: 1285: 1282: 1281: 1279: 1275: 1272: 1270: 1267: 1266: 1264: 1260: 1257: 1255: 1252: 1250: 1247: 1246: 1244: 1240: 1239: 1235: 1233: 1232: 1228: 1226: 1223: 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geometry 318: 316: 312: 307: 304: 300: 296: 292: 288: 280: 278: 276: 272: 268: 264: 260: 256: 252: 248: 244: 240: 237:(SRMU) was a 236: 226: 222: 219:3.2m (126 in) 218: 214: 210: 206: 201: 197: 195: 191: 187: 183: 179: 176: 172: 168: 165: 161: 157: 155: 150: 146: 142: 137: 133: 129: 126:Configuration 124: 120: 116: 113: 110: 106: 103: 99: 95: 91: 88: 85: 81: 77: 73: 70: 67: 63: 60: 57: 53: 50: 49:United States 39: 35: 28: 23: 2472: 2443: 2013: 1934:North Korea 1705: 1698: 1666: 1594: 1582: 1575: 1553: 1502: 1495: 1483: 1471: 1464: 1457: 1435: 1428: 1421: 1404: 1397: 1390: 1334: 1327: 1315: 1293: 1236: 1229: 1140:solid motors 1092:. Retrieved 1088: 1079: 1068:. Retrieved 1064: 1055: 1043: 1032:. Retrieved 1028: 1018: 1007:. Retrieved 1005:. 1994-04-21 1002: 977:. Retrieved 975:. 1991-04-10 973:Deseret News 972: 963: 952:. Retrieved 950:. 1990-09-14 948:Deseret News 947: 938: 927:. Retrieved 923: 913: 902:. Retrieved 900:. 1990-01-21 898:Deseret News 897: 888: 877:. Retrieved 875:. 1988-10-16 873:Deseret News 872: 863: 852:. Retrieved 850:. 1989-12-07 848:Deseret News 847: 838: 827:. Retrieved 825:. 1992-02-08 823:Deseret News 822: 813: 802:. Retrieved 790: 780: 770:, retrieved 758: 735:, retrieved 723: 673:, retrieved 661: 636:. Retrieved 629:the original 624: 595:, retrieved 583: 537: 533: 523: 378: 374: 366: 342:US Air Force 335: 319: 308: 284: 234: 232: 131:Nozzle ratio 65:Manufacturer 2500:Orbital ATK 2471:Engines in 2118:RD-109, 119 2056:RD-864, 869 2041:RD-854, 861 2004:RD-253, 275 1652:RD-170, 171 332:Development 293:rubber and 177:, sea-level 139:Performance 83:Predecessor 75:Application 2489:Categories 1858:YF-1, 2, 3 1806:Hypergolic 1778:Rutherford 1497:Prometheus 1459:Archimedes 1094:2022-05-11 1070:2022-05-11 1034:2022-05-11 1009:2022-05-11 979:2022-05-11 954:2023-05-03 929:2022-05-10 904:2022-05-10 879:2022-05-11 854:2022-05-11 829:2022-05-11 804:2022-05-11 772:2022-05-10 737:2022-05-10 675:2022-05-11 597:2022-05-10 515:References 326:LR87-AJ-11 224:Empty mass 203:Dimensions 108:Propellant 2399:Castor 30 2279:Zefiro 40 2274:Zefiro 23 2215:SpaB-140C 1612:NK-33, 44 1522:cryogenic 1368:Methalox 1187:Hydrolox 1179:Cryogenic 799:0362-4331 562:0022-4650 198:6 degrees 185:Burn time 121:Composite 2414:Orbus-21 2269:Zefiro 9 2032:Ukraine 1810:Aerozine 1798:Storable 1690:Ukraine 1632:RD-0110R 1529:Kerolox 698:Archived 638:July 24, 491:See also 247:Hercules 243:Titan IV 216:Diameter 166:, vacuum 154:pressure 152:Chamber 59:Hercules 55:Designer 2473:italics 2434:Star 48 2429:Star 37 2409:Orbus-6 2330:Israel 2264:Waxwing 2220:Europe 2212:SpaB-65 2114:Russia 1979:RD-0237 1974:RD-0236 1945:Russia 1924:Israel 1884:Europe 1728:Kestrel 1674:S1.5400 1637:RD-0124 1603:Russia 1596:SCE-200 1492:Europe 1485:RD-0169 1480:Russia 1406:Longyun 1399:Lingyun 1317:RD-0146 1311:RD-0120 1302:Russia 1259:Vulcain 1245:Europe 1168:Liquid 1144:orbital 542:Bibcode 483:NROL-19 384:Gallery 348:-built 265:-bound 249:(later 96:Retired 2389:AJ-60A 2354:KM-V2b 2345:Japan 2319:Salman 2285:India 2259:Topaze 2224:Mage 1 2189:China 2180:Solid 2087:TR-201 2051:RD-856 2046:RD-855 2036:RD-843 2026:S5.98M 2015:RD-270 1909:India 1903:Viking 1893:Astris 1888:Aestus 1878:YF-50D 1854:China 1763:RS-27A 1753:Merlin 1743:LR-105 1707:RD-810 1700:RD-801 1684:TEPREL 1680:Spain 1668:RD-193 1657:RD-180 1647:RD-120 1591:India 1584:Welkin 1577:YF-130 1571:YF-115 1566:YF-102 1561:YF-100 1545:China 1473:Aeon R 1466:Aeon 1 1453:Raptor 1437:YF-215 1430:YF-209 1423:TQ-15A 1387:China 1280:Japan 1269:CE-7.5 1265:India 1220:YF-75D 1206:China 797:  560:  295:kevlar 281:Design 255:UA1207 208:Length 188:135.7s 144:Thrust 118:Casing 93:Status 87:UA1207 46:  2454:X-254 2449:X-248 2439:UA120 2419:Orion 2394:Algol 2379:SRB-A 2374:M-34c 2349:KM-V1 2339:RSA-3 2315:Iran 2208:FG-47 2203:FG-46 2198:FG-36 2193:FG-02 2154:XLR81 2148:RS-88 2143:Curie 2133:Gamma 2108:Other 2092:XLR81 2081:RS-88 2076:LR-91 2071:LR-87 2021:S5.92 1949:17D61 1918:Vikas 1898:Vexin 1873:YF-40 1868:YF-23 1841:, or 1821:, or 1815:UH 25 1783:XLR50 1768:RS-56 1758:RS-27 1738:LR-89 1733:LR-79 1617:RD-58 1607:NK-15 1555:TH-12 1549:TH-11 1520:Semi- 1417:TQ-12 1412:TQ-11 1392:BF-20 1357:RS-68 1352:RS-25 1329:BE-3U 1274:CE-20 1254:Vinci 1238:YF-90 1231:YF-79 1225:YF-77 1215:YF-75 1210:YF-73 632:(PDF) 621:(PDF) 354:Titan 350:UA120 233:The 2444:SRMU 2369:M-34 2364:M-24 2359:M-14 2334:LK-1 2324:Rafe 2309:S200 2304:S139 2254:P230 2249:P120 2182:fuel 2066:AJ10 1928:LK-4 1823:UDMH 1773:S-3D 1694:RD-8 1533:RP-1 1504:M-10 1448:BE-4 1347:RL10 1336:BE-7 1295:LE-9 1289:LE-7 1284:LE-5 1249:HM7B 1170:fuel 1142:for 1138:and 795:ISSN 640:2014 558:ISSN 311:RSRM 291:EPDM 134:15.7 112:HTPB 2404:GEM 2299:S12 2244:P80 2239:PAP 2234:P-6 2229:P-4 2129:UK 1913:PS4 1843:HNO 1839:MON 1819:MMH 1723:H-1 1718:F-1 1537:LOX 1379:LOX 1342:J-2 1198:LOX 763:doi 728:doi 666:doi 625:ATK 588:doi 550:doi 275:SRB 251:ATK 2491:: 2294:S9 2289:S7 1837:, 1826:/ 1817:, 1812:, 1535:/ 1377:/ 1372:CH 1196:/ 1191:LH 1087:. 1063:. 1027:. 1001:. 988:^ 971:. 946:. 922:. 896:. 871:. 846:. 821:. 793:. 789:. 757:, 745:^ 722:, 706:^ 683:^ 660:, 648:^ 623:. 605:^ 582:, 570:^ 556:. 548:. 538:32 536:. 532:. 315:DC 2156:* 2150:* 2094:* 2083:* 1848:) 1845:3 1834:4 1832:O 1830:2 1828:N 1808:( 1539:) 1531:( 1381:) 1374:4 1370:( 1200:) 1193:2 1189:( 1128:e 1121:t 1114:v 1097:. 1073:. 1037:. 1012:. 982:. 957:. 932:. 907:. 882:. 857:. 832:. 807:. 765:: 730:: 668:: 642:. 590:: 564:. 552:: 544:: 485:)

Index


United States
Hercules
Alliant Techsystems
UA1207
Solid-fuel motor
HTPB
pressure
Specific impulse
Specific impulse
Thrust vectoring
solid rocket motor
Titan IV
Hercules
ATK
UA1207
carbon-fibre-reinforced polymer
hydroxyl-terminated polybutadiene
ammonium perchlorate composite propellant
filament-wound case
SRB
graphite fibre
EPDM
kevlar
ammonium perchlorate
thrust-vectoring
RSRM
DC
fuel geometry
LR87-AJ-11

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