191:
39:
383:
395:
driven by a single turbine; the dual-spool design uses a separate shafts for a two-stage compressor, requiring two turbines. Both are free-turbine turboshafts, where an independent turbine is used in the exhaust stream downstream of the gas generator to extract power. Although the dual-spool design allows each compressor stage to run in their optimal ranges, it makes the machine more complex.
421:
Military
Engines. ATEC completed a Core Engine (High Pressure system only) test in mid-2011 on the two-spool HPW3000 and completed Gas Generator (both High and Low Pressure systems) testing in January 2012. Durability testing of the first HPW3000 completed in October 2013. A second HPW3000 was tested
394:
The major difference between the ATEC HPW3000 (T900) and the GE3000 (T901) engines is in the number of rotating compressor/turbine assemblies in the gas generator stage. The ATEC T900 is a dual-spool turboshaft, while the GE T901 is a single-spool design. In the single-spool design, the compressor is
373:
Using ITEP, the combat radius is projected to increase by 500 km (270 nmi). The hot and high service ceiling will be increased from 4,000 to 6,000 ft (1,200 to 1,800 m) at 95 °F (35 °C). Performance targets have been determined in part by operations in
Afghanistan and
278:(ATEC) joint venture. The science & technology phase to subsidize development of AATE consisted of two contracts: one was awarded in May 2008 to ATEC for $ 108 million to develop the HPW3000, and the other was awarded to
1003:
494:
282:
in late 2007 for the GE3000. The four-and-a-half year science and technology phase covered durability and performance demonstration testing and was scheduled to conclude in 2013, but tests continued through 2014.
557:
1139:
1161:
836:
669:
1026:
742:
1056:
887:
585:
190:
725:
359:
cost. The 3,000-shp goal for AATE is a 50% increase over the most powerful T700-701D variant, but would also require upgrades to gearbox, transmission, rotor blades, and tail rotor.
692:
639:
486:
999:
977:
549:
1079:
798:
872:
776:
247:
Any aircraft that currently uses the T700 or its commercial derivative, the CT7, also could be re-powered by the AATE, including commercial rotorcraft like the
1131:
1153:
828:
661:
447:, and the prototype six month testing was completed in October 2017. The GE3000 engine was officially designated as the T901-GE-900 engine in January 2017.
1018:
531:
1048:
327:
in the second quarter of 2020 will lead to first engine testing in the third quarter of 2021 before flight tests, and a production decision in 2024.
317:
Development (EMD) contract for $ 517 million. Later that same month, ATEC protested the selection of the GE T901 over its T900 in a filing with the
593:
203:
616:
422:
for performance and sand ingestion during late summer 2014. In
February 2017, the Army designated the HPW3000 design as the T900-HPW-900 engine.
647:
716:
456:
895:
700:
230:
1206:
244:
program. Refitting the existing fleet of twin-engine Black Hawks and
Apaches would require a total of 6,215 engines, including spares.
38:
238:
1071:
241:
985:
318:
1258:
1109:
743:"Request for Information (RFI) for Release of Advance Affordable Turbine Engine (AATEP)/Improved Turbine Engine Program (ITEP)"
410:
336:
275:
167:
925:
806:
863:
768:
440:-specific technologies. The second GE3000 was tested for performance, endurance, and sand ingestion in late spring 2014.
1309:
1259:
Why two spools are better than one: Equipping our military with the best technology for existing and emerging threats
1304:
444:
303:
519:
462:
1264:(Report). Advanced Turbine Engine Company, a joint venture of Honeywell and Pratt & Whitney. October 2015.
1238:
387:
214:
1219:
382:
324:
431:
179:
147:
79:
302:. In August 2016, ATEC and GE were awarded 24-month contracts under ITEP to take their engines through
1284:
753:
624:
487:"General Electric wins $ 517 million contract to build engines for Army's next generation helicopters"
1276:
748:
363:
309:
On 1 February 2019, the US Army selected the GE T901 as the winner of the ITEP program, awarding the
414:
356:
306:; this phase culminated in April 2018 with ATEC and GE demonstrating their prototypes to the Army.
17:
1154:"GE Aviation completes T901 turboshaft testing for the US Army's Improved Turbine Engine Program"
829:"GE and the U.S. Army conduct T901 Preliminary Design Review for Improved Turbine Engine Program"
287:
143:
65:
527:
418:
271:
163:
252:
352:
260:
207:
151:
118:
1176:
951:
348:
340:
1298:
917:
314:
299:
248:
1177:"The #GE3000 has been officially designated the T901-Ge-900 by the US Army for ITEP"
1101:
295:
182:. In February 2019, the US Army selected the GE T901 as the winner of the program.
155:
366:(APU), using the battery alone. The UH-60 and AH-64 are currently equipped with
344:
310:
279:
256:
175:
335:
In addition to 3,000-shp output, the targets for AATE were a 25% reduction in
294:(ITEP); ITEP would result in an engine that would improve the AH-64 and UH-60
1132:"US Army and GE Aviation complete testing of second GE3000 helicopter engine"
404:
367:
267:
171:
159:
75:
259:
instead of its single GE CT7/T700; in addition, AATE could also power the
443:
In 2016, the Army awarded GE Aviation a 24-month contract for the T901
339:(less than 0.347 lb/(hp⋅h), 211 g/kWh), a 65% improvement in
218:
195:
321:(GAO). The GAO denied the protest in a filing posted on May 30, 2019.
1285:
The Single-Spool Core: A proven design for performance and simplicity
662:"GE Awarded Advanced Affordable Turbine Engine Contract by U.S. Army"
799:"ATEC Conducts Successful Preliminary Design Review (PDR) with Army"
550:"Fuel-Efficient Engine to Increase Range, Power of Army Helicopters"
1019:"Industry asks US Army, one shaft or two for new helicopter engine"
381:
343:(more than 6.5 hp/lb, 10.7 kW/kg), a 20% improvement in
226:
222:
189:
48:
44:
1242:
717:"QuadA2012: Questions linger over next-generation engine funding"
437:
234:
1049:"ATEC Successfully Completes Testing of First HPW3000 Engine"
693:"Engine War revival: P&W bounces back with improved F100"
586:"US Army's improvement helicopter engine enters design phase"
347:(more than 6000 hours and 15000 cycles), a 35% reduction in
290:
announced the development of AATE would continue under the
888:"ATEC protests US Army decision on new helicopter engines"
158:, improving fuel consumption, power, durability and cost.
640:"US Army engine competition strained by budget pressures"
413:(ATEC) is a 50/50 joint venture created in 2007 between
51:
are to be powered by the
Improved Turbine Engine (ITE).
1220:"Commentary: The Case for ITEP — Power for the Future"
864:"Anatomy Of U.S. Army Improved Turbine Engine Program"
1207:"Analysis: US Army's powerful vision for ITEP engine"
918:"Advanced Turbine Engine Company B-417324,B-417324.2"
769:"Another Baby Step for Army Aviation's Top Priority"
524:
FBO Solicitation Notice. Solicitation #W911W60720002
520:"Advanced Affordable Turbine Engine (AATE) Program"
114:
106:
98:
90:
85:
71:
61:
56:
31:
862:
715:
362:Both the ATEC and GE designs can start without an
1241:. Advanced Turbine Engine Company. Archived from
737:
735:
436:Since 2010, GE has been developing and testing
8:
1072:"ATEC Successfully Tests Second ITEP Engine"
945:
943:
1218:Hirschberg, Mike (November–December 2016).
374:Iraq, as well as growing airframe weights.
543:
541:
28:
579:
577:
575:
514:
512:
480:
478:
255:is considering it for the single-turbine
206:(AATD) solicited proposals for the 3000
978:"Next Steps For Army AATE/ITEP Program"
474:
204:Aviation Applied Technology Directorate
1006:from the original on 13 December 2023.
928:from the original on 10 September 2019
194:The new turboshaft should replace the
922:U.S. Government Accountability Office
856:
854:
386:Diagram of a simplified single-spool
7:
1164:from the original on 8 January 2024.
1142:from the original on 8 January 2024.
1059:from the original on 8 January 2024.
1029:from the original on 31 January 2021
950:Trimble, Stephen (19 October 2009).
485:Insinna, Valerie (1 February 2019).
457:Adaptive Versatile Engine Technology
1112:from the original on 8 January 2024
1082:from the original on 8 January 2024
976:Douglas, Nelms (1 September 2009).
839:from the original on 8 January 2024
767:Whittle, Richard (23 August 2016).
728:from the original on 31 March 2023.
672:from the original on 8 January 2024
548:Insinna, Valerie (1 January 2014).
497:from the original on 8 January 2024
886:Reim, Garrett (19 February 2019).
779:from the original on 14 March 2021
638:Trimble, Stephen (27 April 2011).
351:(less than $ 650k per engine) and
229:Apache rotorcraft, leveraging the
211:Advanced Affordable Turbine Engine
202:In December 2006, the U.S. Army's
136:Advanced Affordable Turbine Engine
25:
18:Advanced Affordable Turbine Engine
1205:Stephen Trimble (25 April 2018).
875:from the original on 1 June 2023.
861:Warwick, Graham (19 April 2018).
691:Trimble, Stephen (20 June 2008).
534:from the original on 9 June 2011.
1102:"ATEC's HPW3000 Designated T900"
1070:Mehta, Aaron (14 October 2014).
560:from the original on 1 June 2023
530:'s FBO Daily. 18 December 2006.
319:Government Accountability Office
37:
1000:"Military Auxiliary Power Unit"
805:. 27 April 2018. Archived from
803:Advanced Turbine Engine Company
615:Douglas, Nelms (1 April 2012).
411:Advanced Turbine Engine Company
292:Improved Turbine Engine Program
276:Advanced Turbine Engine Company
128:Improved Turbine Engine Program
32:Improved Turbine Engine Program
1175:GE Aviation (9 January 2017).
1017:Parsons, Dan (18 March 2015).
752:. 22 July 2009. Archived from
714:Skinner, Tony (4 April 2012).
617:"Army's ITEP Gets New Impetus"
584:Parsons, Dan (18 March 2015).
426:General Electric GE3000 (T901)
1:
170:joint venture to develop the
1290:(Report). GE Aviation. 2018.
331:Design and performance goals
1326:
1158:General Electric Aerospace
1136:General Electric Aerospace
833:General Electric Aerospace
666:General Electric Aerospace
429:
402:
982:Rotor & Wing Magazine
621:Rotor & Wing Magazine
493:. Sightline Media Group.
445:preliminary design review
355:, and a 15% reduction in
304:preliminary design review
221:that currently power the
36:
463:List of aircraft engines
298:capacities and increase
388:free-turbine turboshaft
215:free-turbine turboshaft
1239:"ATEC T900 (homepage)"
749:Business Opportunities
391:
325:Critical design review
199:
432:General Electric T901
385:
193:
148:General Electric T700
146:project to develop a
80:General Electric T901
1277:"GE T901 (homepage)"
1108:. 15 February 2017.
668:. 21 November 2007.
364:auxiliary power unit
150:replacement for the
1245:on 26 December 2019
1055:. 21 October 2013.
1053:Pratt & Whitney
988:on 10 October 2017.
419:Pratt & Whitney
415:Honeywell Aerospace
399:ATEC HPW3000 (T900)
357:product development
272:Pratt & Whitney
164:Pratt & Whitney
57:General information
1310:Turboshaft engines
1160:. 9 October 2017.
392:
370:GTCP 36-150 APUs.
288:United States Army
286:In July 2009, the
263:(JMR) helicopter.
200:
144:United States Army
66:United States Army
898:on 12 August 2020
835:. 25 April 2018.
627:on 21 April 2018.
124:
123:
16:(Redirected from
1317:
1305:Aircraft engines
1291:
1289:
1280:
1265:
1263:
1254:
1252:
1250:
1227:
1214:
1192:
1191:
1189:
1187:
1172:
1166:
1165:
1150:
1144:
1143:
1128:
1122:
1121:
1119:
1117:
1098:
1092:
1091:
1089:
1087:
1067:
1061:
1060:
1045:
1039:
1038:
1036:
1034:
1014:
1008:
1007:
996:
990:
989:
984:. Archived from
973:
967:
966:
964:
962:
947:
938:
937:
935:
933:
914:
908:
907:
905:
903:
894:. Archived from
883:
877:
876:
866:
858:
849:
848:
846:
844:
825:
819:
818:
816:
814:
795:
789:
788:
786:
784:
773:Breaking Defense
764:
758:
757:
756:on 9 March 2012.
739:
730:
729:
719:
711:
705:
704:
699:. Archived from
688:
682:
681:
679:
677:
658:
652:
651:
646:. Archived from
635:
629:
628:
623:. Archived from
612:
606:
605:
603:
601:
596:on 28 March 2023
592:. Archived from
581:
570:
569:
567:
565:
554:National Defense
545:
536:
535:
516:
507:
506:
504:
502:
482:
353:maintenance cost
337:fuel consumption
261:Joint Multi-Role
152:UH-60 Black Hawk
142:) program, is a
134:), formerly the
119:Joint Multi-Role
41:
29:
21:
1325:
1324:
1320:
1319:
1318:
1316:
1315:
1314:
1295:
1294:
1287:
1283:
1275:
1261:
1257:
1248:
1246:
1237:
1217:
1204:
1201:
1196:
1195:
1185:
1183:
1174:
1173:
1169:
1152:
1151:
1147:
1138:. 2 June 2014.
1130:
1129:
1125:
1115:
1113:
1100:
1099:
1095:
1085:
1083:
1069:
1068:
1064:
1047:
1046:
1042:
1032:
1030:
1016:
1015:
1011:
998:
997:
993:
975:
974:
970:
960:
958:
952:"Power pay-off"
949:
948:
941:
931:
929:
924:. 30 May 2019.
916:
915:
911:
901:
899:
885:
884:
880:
860:
859:
852:
842:
840:
827:
826:
822:
812:
810:
809:on 23 June 2018
797:
796:
792:
782:
780:
766:
765:
761:
741:
740:
733:
713:
712:
708:
690:
689:
685:
675:
673:
660:
659:
655:
650:on 17 May 2021.
637:
636:
632:
614:
613:
609:
599:
597:
583:
582:
573:
563:
561:
547:
546:
539:
518:
517:
510:
500:
498:
484:
483:
476:
471:
453:
434:
428:
407:
401:
380:
341:power to weight
333:
225:Black Hawk and
217:to replace the
188:
78:
52:
23:
22:
15:
12:
11:
5:
1323:
1321:
1313:
1312:
1307:
1297:
1296:
1293:
1292:
1281:
1279:. GE Aviation.
1272:
1271:
1267:
1266:
1255:
1234:
1233:
1229:
1228:
1215:
1200:
1199:External links
1197:
1194:
1193:
1167:
1145:
1123:
1093:
1062:
1040:
1009:
991:
968:
939:
909:
878:
850:
820:
790:
759:
731:
722:Shephard Media
706:
703:on 5 May 2021.
683:
653:
630:
607:
571:
537:
508:
473:
472:
470:
467:
466:
465:
460:
452:
449:
430:Main article:
427:
424:
403:Main article:
400:
397:
379:
376:
332:
329:
187:
184:
122:
121:
116:
112:
111:
108:
104:
103:
100:
96:
95:
92:
88:
87:
83:
82:
73:
69:
68:
63:
59:
58:
54:
53:
42:
34:
33:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1322:
1311:
1308:
1306:
1303:
1302:
1300:
1286:
1282:
1278:
1274:
1273:
1269:
1268:
1260:
1256:
1244:
1240:
1236:
1235:
1231:
1230:
1225:
1221:
1216:
1212:
1208:
1203:
1202:
1198:
1182:
1178:
1171:
1168:
1163:
1159:
1155:
1149:
1146:
1141:
1137:
1133:
1127:
1124:
1111:
1107:
1103:
1097:
1094:
1081:
1077:
1073:
1066:
1063:
1058:
1054:
1050:
1044:
1041:
1028:
1024:
1020:
1013:
1010:
1005:
1002:. Honeywell.
1001:
995:
992:
987:
983:
979:
972:
969:
957:
956:Flight Global
953:
946:
944:
940:
927:
923:
919:
913:
910:
897:
893:
892:Flight Global
889:
882:
879:
874:
870:
869:Aviation Week
865:
857:
855:
851:
838:
834:
830:
824:
821:
808:
804:
800:
794:
791:
778:
774:
770:
763:
760:
755:
751:
750:
744:
738:
736:
732:
727:
723:
718:
710:
707:
702:
698:
697:Flight Global
694:
687:
684:
671:
667:
663:
657:
654:
649:
645:
644:Flight Global
641:
634:
631:
626:
622:
618:
611:
608:
595:
591:
587:
580:
578:
576:
572:
559:
555:
551:
544:
542:
538:
533:
529:
525:
521:
515:
513:
509:
496:
492:
488:
481:
479:
475:
468:
464:
461:
458:
455:
454:
450:
448:
446:
441:
439:
433:
425:
423:
420:
416:
412:
406:
398:
396:
389:
384:
377:
375:
371:
369:
365:
360:
358:
354:
350:
346:
342:
338:
330:
328:
326:
322:
320:
316:
315:Manufacturing
312:
307:
305:
301:
300:combat radius
297:
293:
289:
284:
281:
277:
273:
269:
264:
262:
258:
254:
250:
249:Sikorsky S-92
245:
243:
240:
236:
232:
228:
224:
220:
216:
212:
209:
205:
197:
192:
185:
183:
181:
177:
173:
169:
165:
161:
157:
153:
149:
145:
141:
137:
133:
129:
120:
117:
113:
110:T901 selected
109:
105:
102:February 2019
101:
97:
93:
89:
84:
81:
77:
74:
70:
67:
64:
60:
55:
50:
46:
40:
35:
30:
27:
19:
1247:. Retrieved
1243:the original
1223:
1211:Flightglobal
1210:
1184:. Retrieved
1180:
1170:
1157:
1148:
1135:
1126:
1114:. Retrieved
1105:
1096:
1084:. Retrieved
1075:
1065:
1052:
1043:
1031:. Retrieved
1023:FlightGlobal
1022:
1012:
994:
986:the original
981:
971:
959:. Retrieved
955:
930:. Retrieved
921:
912:
900:. Retrieved
896:the original
891:
881:
868:
841:. Retrieved
832:
823:
811:. Retrieved
807:the original
802:
793:
781:. Retrieved
772:
762:
754:the original
746:
721:
709:
701:the original
696:
686:
674:. Retrieved
665:
656:
648:the original
643:
633:
625:the original
620:
610:
598:. Retrieved
594:the original
590:FlightGlobal
589:
562:. Retrieved
553:
523:
499:. Retrieved
491:Defense News
490:
442:
435:
408:
393:
372:
361:
334:
323:
308:
296:hot and high
291:
285:
265:
246:
210:
201:
156:AH-64 Apache
139:
135:
131:
127:
125:
26:
902:19 February
345:design life
311:Engineering
280:GE Aviation
274:formed the
257:S-97 Raider
178:builds the
176:GE Aviation
166:formed the
1299:Categories
1224:Vertiflite
1076:Army Times
528:Loren Data
501:2 February
469:References
378:Contenders
349:production
1116:8 January
1106:helis.com
843:8 January
405:ATEC T900
368:Honeywell
268:Honeywell
266:In 2007,
160:Honeywell
99:Concluded
94:July 2009
91:Initiated
76:ATEC T900
72:Proposals
62:Issued by
43:Both the
1249:30 March
1186:30 March
1162:Archived
1140:Archived
1110:Archived
1086:30 March
1080:Archived
1057:Archived
1033:30 March
1027:Archived
1004:Archived
961:30 March
932:30 March
926:Archived
873:Archived
837:Archived
813:30 March
783:30 March
777:Archived
747:Federal
726:Archived
676:30 March
670:Archived
600:30 March
564:30 March
558:Archived
532:Archived
495:Archived
459:(ADVENT)
451:See also
253:Sikorsky
174:, while
1181:Twitter
219:GE T700
213:(AATE)
196:GE T700
186:History
115:Related
107:Outcome
86:History
390:engine
1288:(PDF)
1262:(PDF)
242:VAATE
227:AH-64
223:UH-60
49:AH-64
45:UH-60
1251:2020
1232:ATEC
1188:2020
1118:2024
1088:2020
1035:2020
963:2020
934:2020
904:2019
845:2024
815:2020
785:2020
678:2020
602:2020
566:2020
503:2019
438:T901
417:and
409:The
313:and
270:and
235:NASA
180:T901
172:T900
168:ATEC
162:and
154:and
140:AATE
132:ITEP
126:The
47:and
239:DOE
231:DoD
208:shp
1301::
1270:GE
1222:.
1209:.
1179:.
1156:.
1134:.
1104:.
1078:.
1074:.
1051:.
1025:.
1021:.
980:.
954:.
942:^
920:.
890:.
871:.
867:.
853:^
831:.
801:.
775:.
771:.
745:.
734:^
724:.
720:.
695:.
664:.
642:.
619:.
588:.
574:^
556:.
552:.
540:^
526:.
522:.
511:^
489:.
477:^
251:.
1253:.
1226:.
1213:.
1190:.
1120:.
1090:.
1037:.
965:.
936:.
906:.
847:.
817:.
787:.
680:.
604:.
568:.
505:.
237:/
233:/
198:.
138:(
130:(
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
