27:
716:
299:
604:
376:
353:
SA-2's dummy upper stages contained approximately 190,000 pounds (86,000 kg) of water, or 22,900 U.S. gallons (86,685 L), used to simulate the mass of future payloads. Stage two contained 97,000 pounds (44,000 kg) of water, and stage three contained 93,000 pounds (42,000 kg). When
326:
in that it was primarily a test of the Saturn I rocket and the new H-1 engines. Specifically, its goals were to prove propulsion performance and mission adequacy, vehicle structural design and aerodynamic characteristics, guidance and control systems, and launch facility and ground support equipment.
313:
The H-1 engines shut down at an altitude of 35 miles (56 km) after firing for 1 minute 55 seconds and reaching a maximum velocity of 3,750 miles per hour (6,040 km/h; 1,680 m/s). The vehicle continued to coast to an altitude of 65.4 miles (105.3 km), at which point, 2 minutes 40
361:
Cameras on the ground immediately recorded the water cloud, and personnel at a ground station began to observe it about four to five seconds after release. Those personnel reported that the cloud dispersed from vision within an average of five seconds, while more sensitive instruments tracked the
310:. The only hold in the countdown sequence was for 30 minutes due to a vessel which entered the flight safety zone 60 miles (96 km) down range. The rocket carried 619,000 pounds (281,000 kg) of propellant, about 83% of its maximum capacity.
279:; while attempts were made to fix the problem, it was eventually decided to launch without replacing the engine. Minor problems were found in the guidance subsystem and service structure operations, damaged
259:
Launch preparation for the mission began at Cape
Canaveral on February 27, 1962, with the arrival of the second Saturn I launch vehicle. The only significant change made to the vehicle from the previous
287:(S-V-D) third stage had to be replaced. Problems arose with two of the fueling computers, but each was repaired. Three hydraulic systems were also listed as potential problems.
307:
150:
730:
1543:
1169:
1494:
384:
1226:
445:
578:
1298:
1016:
635:
703:
698:
366:
described as "probably the first synthetic thunderstorm ever generated in space." Project
Highwater on this flight was also declared a success.
693:
354:
the terminate command was sent to the rocket, dynamite charges split the second stage longitudinally, instantly releasing its water load.
314:
seconds after launch, officials sent a terminate command to the rocket, setting off several charges which caused the vehicle to destruct.
735:
809:
1345:
1293:
688:
683:
248:
147:
290:
Despite the issues encountered during flight preparation, none required the target launch date of April 25 to be pushed back.
1404:
1154:
358:
charges created several 1-foot (0.30 m) holes in the third stage, releasing its water over a period of several seconds.
1489:
1262:
1533:
1308:
1303:
1176:
628:
1436:
1426:
1149:
750:
1538:
1330:
1246:
1144:
608:
1272:
715:
667:
1102:
660:
437:
570:
362:
cloud to a maximum altitude of 100 miles (161 km). The cloud produced lightning-like effects, which Dr.
1528:
1164:
1159:
1118:
655:
621:
494:
327:
NASA declared all objectives as successful. Additionally, the fuel sloshing issue from SA-1 was minimized.
1484:
1394:
1335:
1209:
771:
284:
1139:
504:
821:
745:
342:
water from the second and third stages which allowed scientists to investigate the nature of Earth's
1313:
1267:
1056:
814:
804:
740:
276:
1384:
1409:
1126:
1008:
413:
1548:
1202:
363:
347:
335:
240:
187:
1468:
1416:
1319:
1134:
1041:
1021:
499:
1399:
1378:
1340:
26:
1389:
272:. While no serious delays were encountered, there were several minor problems reported.
644:
269:
244:
201:
283:
were found in a liquid oxygen stud and truss member, and a manhole cover on the dummy
1522:
1192:
983:
978:
973:
963:
766:
331:
323:
261:
217:
212:
380:
1325:
280:
265:
554:
522:
473:
417:
1220:
298:
1197:
343:
478:. NASA. pp. 381–2. Special Publication 4205; Accession number N79-28203.
1361:
1277:
1096:
945:
940:
935:
930:
925:
920:
915:
910:
781:
355:
275:
A leak was detected between the liquid oxygen dome and injector for the #4
603:
527:. NASA. p. 155. Special Publication 4009; Accession number N69-32021.
339:
1461:
1456:
1451:
998:
993:
905:
900:
895:
890:
874:
869:
864:
786:
776:
236:
136:
1446:
1214:
1075:
1070:
1065:
988:
859:
854:
849:
844:
306:
Saturn-Apollo 2 was launched at 14:00:34 UTC on April 25, 1962, from
472:
Brooks, Courtney G; Grimwood, James M; Swenson, Jr, Loyd S (1979).
1046:
1036:
1031:
1026:
297:
613:
1421:
52:
617:
419:
Moonport: A History of Apollo Launch
Facilities and Operations
577:. No. 86. Associated Press. April 26, 1962. p. 28.
422:. NASA. Special Publication 4204; Accession number N79-12127.
16:
Second flight of the Saturn I launch vehicle, April 25, 1962
475:
Chariots for Apollo: A History of Manned Lunar
Spacecraft
553:
Woodbridge, David D; Lasater, James A (March 6, 1965).
322:
The objectives of SA-2 were much the same as those of
412:
Benson, Charles D; Faherty, William
Barnaby (1978).
1477:
1435:
1370:
1354:
1286:
1255:
1239:
1185:
1111:
1088:
1055:
1007:
954:
883:
837:
830:
797:
759:
723:
676:
169:
164:
143:
132:
116:
111:
95:
90:
74:
66:
58:
48:
40:
507:. Associated Press. April 25, 1962. pp. 1, 3.
247:. The rocket was launched on April 25, 1962, from
548:
546:
544:
542:
540:
538:
536:
534:
495:"Big US Rocket Releases 95 Tons of Water in Sky"
489:
487:
485:
524:The Apollo Spacecraft: A Chronology - Volume 1
1495:Third-party evidence for Apollo Moon landings
629:
385:National Aeronautics and Space Administration
31:SA-2 sitting on Pad 34 with service structure
8:
1507:Symbol indicates failure or partial failure
467:
465:
463:
407:
405:
403:
401:
399:
397:
395:
330:A second objective of both this mission and
19:
516:
514:
834:
714:
636:
622:
614:
521:Ertel, Ivan D; Morse, Mary Louise (1969).
431:
429:
25:
18:
268:in the propellant tanks to mitigate fuel
391:
556:An Analysis of Project High Water Data
448:from the original on December 10, 2022
1544:Spacecraft launched by Saturn rockets
7:
1170:50th Anniversary commemorative coins
239:launch vehicle, the first flight of
581:from the original on March 10, 2023
559:. NASA. Accession number N65-21330.
383:from websites or documents of the
350:and the behavior of ice in space.
14:
571:"Saturn Brews Space Thunderstorm"
414:"Saturn I Launches (1962 - 1965)"
264:flight was the addition of extra
602:
379: This article incorporates
374:
99:420,000 kg (463 short tons)
1422:Apollo Lunar Sounder Experiment
243:, and was part of the American
235:) was the second flight of the
62:2 minutes, 40 seconds
1247:"Houston, we've had a problem"
736:Cape Kennedy Air Force Station
1:
1490:Stolen and missing Moon rocks
1263:Modular Equipment Transporter
503:. Vol. 93, no. 47.
436:Ryba, Jeanne (July 8, 2009).
338:, the intentional release of
78:105.3 km (65.4 mi)
1427:Fe, Fi, Fo, Fum, and Phooey
751:Manned Space Flight Network
589:– via Newspapers.com.
1565:
810:Command and Service Module
712:
1503:
668:List of Apollo astronauts
651:
575:San Angelo Standard-Times
199:
195:
160:
156:
107:
103:
86:
82:
36:
24:
174:April 25, 1962, 14:03:14
120:April 25, 1962, 14:00:34
70:80 km (50 mi)
1485:Lunar orbit rendezvous
1346:Postal covers incident
1336:Hadley Rille meteorite
1210:Bench Crater meteorite
731:Mission Control Center
381:public domain material
303:
178:1962-04-25UTC14:03:15Z
124:1962-04-25UTC14:00:34Z
1155:Lunar sample displays
611:at Wikimedia Commons
438:"Saturn Test Flights"
301:
91:Spacecraft properties
1405:Lunar sample display
1395:Nansen-Apollo crater
822:Lunar Roving Vehicle
798:Spacecraft and rover
746:Kennedy Space Center
1534:1962 in spaceflight
1268:Fra Mauro formation
1229:Streptococcus mitis
741:Crawler-transporter
21:
1410:Lunar basalt 70017
1371:Apollo 17 specific
1355:Apollo 16 specific
1287:Apollo 15 specific
1256:Apollo 14 specific
1240:Apollo 13 specific
1186:Apollo 12 specific
1177:In popular culture
1145:Little West crater
1112:Apollo 11 specific
348:noctilucent clouds
304:
67:Distance travelled
1539:Test spaceflights
1514:
1513:
1150:Goodwill messages
1089:Apollo 8 specific
1084:
1083:
805:Apollo spacecraft
724:Ground facilities
694:Launch Complex 39
689:Launch Complex 37
684:Launch Complex 34
661:canceled missions
607:Media related to
364:Wernher von Braun
336:Project Highwater
308:Launch Complex 34
277:H-1 rocket engine
241:Project Highwater
226:
225:
207:
191:
188:Project Highwater
1556:
1417:Troctolite 76535
1320:Fallen Astronaut
1299:Lunar operations
1135:Tranquility Base
1042:Pad Abort Test-2
1022:Pad Abort Test-1
835:
718:
677:Launch complexes
656:List of missions
638:
631:
624:
615:
606:
591:
590:
588:
586:
567:
561:
560:
550:
529:
528:
518:
509:
508:
500:Nashua Telegraph
491:
480:
479:
469:
458:
457:
455:
453:
433:
424:
423:
409:
378:
377:
205:
185:
183:
181:
179:
127:
125:
112:Start of mission
59:Mission duration
29:
22:
1564:
1563:
1559:
1558:
1557:
1555:
1554:
1553:
1519:
1518:
1515:
1510:
1499:
1473:
1439:
1431:
1379:The Blue Marble
1366:
1350:
1341:Seatbelt basalt
1314:Hadley–Apennine
1309:Return to Earth
1304:Solo operations
1282:
1251:
1235:
1203:Surveyor crater
1193:Statio Cognitum
1181:
1119:Command Module
1107:
1103:Genesis reading
1080:
1051:
1003:
964:Saturn-Apollo 1
956:
950:
879:
826:
793:
760:Launch vehicles
755:
719:
710:
672:
647:
642:
609:Saturn-Apollo 2
600:
595:
594:
584:
582:
569:
568:
564:
552:
551:
532:
520:
519:
512:
493:
492:
483:
471:
470:
461:
451:
449:
435:
434:
427:
411:
410:
393:
375:
372:
320:
296:
257:
229:Saturn-Apollo 2
222:
221:
215:
208:
204:
184:
177:
175:
173:
123:
121:
32:
20:Saturn-Apollo 2
17:
12:
11:
5:
1562:
1560:
1552:
1551:
1546:
1541:
1536:
1531:
1529:Apollo program
1521:
1520:
1512:
1511:
1509:
1508:
1504:
1501:
1500:
1498:
1497:
1492:
1487:
1481:
1479:
1475:
1474:
1472:
1471:
1466:
1465:
1464:
1459:
1454:
1443:
1441:
1433:
1432:
1430:
1429:
1424:
1419:
1414:
1413:
1412:
1402:
1397:
1392:
1387:
1385:Taurus–Littrow
1382:
1374:
1372:
1368:
1367:
1365:
1364:
1358:
1356:
1352:
1351:
1349:
1348:
1343:
1338:
1333:
1328:
1323:
1316:
1311:
1306:
1301:
1296:
1290:
1288:
1284:
1283:
1281:
1280:
1275:
1270:
1265:
1259:
1257:
1253:
1252:
1250:
1249:
1243:
1241:
1237:
1236:
1234:
1233:
1224:
1217:
1212:
1207:
1206:
1205:
1200:
1189:
1187:
1183:
1182:
1180:
1179:
1174:
1173:
1172:
1162:
1157:
1152:
1147:
1142:
1137:
1132:
1124:
1115:
1113:
1109:
1108:
1106:
1105:
1100:
1092:
1090:
1086:
1085:
1082:
1081:
1079:
1078:
1073:
1068:
1062:
1060:
1053:
1052:
1050:
1049:
1044:
1039:
1034:
1029:
1024:
1019:
1013:
1011:
1005:
1004:
1002:
1001:
996:
991:
986:
981:
976:
971:
966:
960:
958:
952:
951:
949:
948:
943:
938:
933:
928:
923:
918:
913:
908:
903:
898:
893:
887:
885:
881:
880:
878:
877:
872:
867:
862:
857:
852:
847:
841:
839:
832:
828:
827:
825:
824:
819:
818:
817:
812:
801:
799:
795:
794:
792:
791:
790:
789:
784:
779:
769:
763:
761:
757:
756:
754:
753:
748:
743:
738:
733:
727:
725:
721:
720:
713:
711:
709:
708:
707:
706:
701:
691:
686:
680:
678:
674:
673:
671:
670:
665:
664:
663:
652:
649:
648:
645:Apollo program
643:
641:
640:
633:
626:
618:
599:
598:External links
596:
593:
592:
562:
530:
510:
481:
459:
425:
390:
389:
371:
368:
319:
316:
302:Launch of SA-2
295:
292:
256:
253:
249:Cape Canaveral
245:Apollo program
224:
223:
216:
210:
209:
206:Uncrewed tests
202:Project Apollo
200:
197:
196:
193:
192:
171:
167:
166:
165:End of mission
162:
161:
158:
157:
154:
153:
148:Cape Canaveral
145:
141:
140:
134:
130:
129:
118:
114:
113:
109:
108:
105:
104:
101:
100:
97:
93:
92:
88:
87:
84:
83:
80:
79:
76:
72:
71:
68:
64:
63:
60:
56:
55:
50:
46:
45:
42:
38:
37:
34:
33:
30:
15:
13:
10:
9:
6:
4:
3:
2:
1561:
1550:
1547:
1545:
1542:
1540:
1537:
1535:
1532:
1530:
1527:
1526:
1524:
1517:
1506:
1505:
1502:
1496:
1493:
1491:
1488:
1486:
1483:
1482:
1480:
1476:
1470:
1467:
1463:
1460:
1458:
1455:
1453:
1450:
1449:
1448:
1445:
1444:
1442:
1438:
1434:
1428:
1425:
1423:
1420:
1418:
1415:
1411:
1408:
1407:
1406:
1403:
1401:
1400:Shorty crater
1398:
1396:
1393:
1391:
1388:
1386:
1383:
1381:
1380:
1376:
1375:
1373:
1369:
1363:
1360:
1359:
1357:
1353:
1347:
1344:
1342:
1339:
1337:
1334:
1332:
1329:
1327:
1324:
1322:
1321:
1317:
1315:
1312:
1310:
1307:
1305:
1302:
1300:
1297:
1295:
1292:
1291:
1289:
1285:
1279:
1276:
1274:
1271:
1269:
1266:
1264:
1261:
1260:
1258:
1254:
1248:
1245:
1244:
1242:
1238:
1232:
1230:
1225:
1223:
1222:
1218:
1216:
1213:
1211:
1208:
1204:
1201:
1199:
1196:
1195:
1194:
1191:
1190:
1188:
1184:
1178:
1175:
1171:
1168:
1167:
1166:
1165:Anniversaries
1163:
1161:
1160:Missing tapes
1158:
1156:
1153:
1151:
1148:
1146:
1143:
1141:
1140:Double crater
1138:
1136:
1133:
1131:
1130:
1127:Lunar Module
1125:
1123:
1122:
1117:
1116:
1114:
1110:
1104:
1101:
1099:
1098:
1094:
1093:
1091:
1087:
1077:
1074:
1072:
1069:
1067:
1064:
1063:
1061:
1058:
1054:
1048:
1045:
1043:
1040:
1038:
1035:
1033:
1030:
1028:
1025:
1023:
1020:
1018:
1015:
1014:
1012:
1010:
1006:
1000:
997:
995:
992:
990:
987:
985:
982:
980:
977:
975:
972:
970:
967:
965:
962:
961:
959:
953:
947:
944:
942:
939:
937:
934:
932:
929:
927:
924:
922:
919:
917:
914:
912:
909:
907:
904:
902:
899:
897:
894:
892:
889:
888:
886:
882:
876:
873:
871:
868:
866:
863:
861:
858:
856:
853:
851:
848:
846:
843:
842:
840:
836:
833:
829:
823:
820:
816:
813:
811:
808:
807:
806:
803:
802:
800:
796:
788:
785:
783:
780:
778:
775:
774:
773:
770:
768:
767:Little Joe II
765:
764:
762:
758:
752:
749:
747:
744:
742:
739:
737:
734:
732:
729:
728:
726:
722:
717:
705:
702:
700:
697:
696:
695:
692:
690:
687:
685:
682:
681:
679:
675:
669:
666:
662:
659:
658:
657:
654:
653:
650:
646:
639:
634:
632:
627:
625:
620:
619:
616:
612:
610:
605:
597:
580:
576:
572:
566:
563:
558:
557:
549:
547:
545:
543:
541:
539:
537:
535:
531:
526:
525:
517:
515:
511:
506:
502:
501:
496:
490:
488:
486:
482:
477:
476:
468:
466:
464:
460:
447:
443:
439:
432:
430:
426:
421:
420:
415:
408:
406:
404:
402:
400:
398:
396:
392:
388:
386:
382:
369:
367:
365:
359:
357:
351:
349:
346:, as well as
345:
341:
337:
333:
328:
325:
317:
315:
311:
309:
300:
293:
291:
288:
286:
282:
281:strain gauges
278:
273:
271:
267:
263:
254:
252:
250:
246:
242:
238:
234:
230:
220: →
219:
218:Saturn I SA-3
214:
213:Saturn I SA-1
211:←
203:
198:
194:
189:
172:
168:
163:
159:
155:
152:
149:
146:
142:
138:
135:
131:
119:
115:
110:
106:
102:
98:
94:
89:
85:
81:
77:
73:
69:
65:
61:
57:
54:
51:
47:
43:
39:
35:
28:
23:
1516:
1469:Apollo–Soyuz
1390:Tracy's Rock
1377:
1326:Genesis Rock
1318:
1228:
1219:
1128:
1120:
1095:
968:
815:Lunar Module
601:
583:. Retrieved
574:
565:
555:
523:
498:
474:
450:. Retrieved
441:
418:
373:
360:
352:
329:
321:
312:
305:
289:
274:
258:
232:
228:
227:
41:Mission type
1440:capsule use
1437:Post-Apollo
1331:Great Scott
1231:on the Moon
1227:Reports of
1221:Moon Museum
1009:Abort tests
957:development
251:, Florida.
144:Launch site
117:Launch date
96:Launch mass
44:Test flight
1523:Categories
1273:Big Bertha
1198:Surveyor 3
505:Nashua, NH
370:References
344:ionosphere
318:Objectives
182: UTC
1362:Big Muley
1278:Moon tree
1097:Earthrise
946:Apollo 17
941:Apollo 16
936:Apollo 15
931:Apollo 14
926:Apollo 13
921:Apollo 12
916:Apollo 11
911:Apollo 10
782:Saturn IB
585:March 10,
356:Primacord
170:Destroyed
128: UTC
1549:Saturn I
1121:Columbia
999:Apollo 6
994:Apollo 4
906:Apollo 9
901:Apollo 8
896:Apollo 7
891:Apollo 1
875:Apollo 6
870:Apollo 5
865:Apollo 4
838:Uncrewed
787:Saturn V
777:Saturn I
579:Archived
446:Archived
442:NASA.gov
270:sloshing
237:Saturn I
137:Saturn I
49:Operator
1478:Related
1294:Journey
1059:flights
1057:Pegasus
831:Flights
340:ballast
285:Centaur
266:baffles
255:History
176: (
122: (
1447:Skylab
1215:J002E3
1076:AS-105
1071:AS-104
1066:AS-103
989:AS-203
955:Saturn
884:Crewed
860:AS-202
855:AS-201
850:AS-102
845:AS-101
772:Saturn
452:May 3,
294:Flight
133:Rocket
75:Apogee
1129:Eagle
1047:A-004
1037:A-003
1032:A-002
1027:A-001
151:LC-34
984:SA-5
979:SA-4
974:SA-3
969:SA-2
587:2023
454:2012
334:was
332:SA-3
324:SA-1
262:SA-1
233:SA-2
139:SA-2
53:NASA
1017:QTV
1525::
573:.
533:^
513:^
497:.
484:^
462:^
444:.
440:.
428:^
416:.
394:^
387:.
1462:4
1457:3
1452:2
704:B
699:A
637:e
630:t
623:v
456:.
231:(
190:)
186:(
180:)
126:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
