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421:
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26:
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289:; all HRP-2s were delivered to the U.S. Coast Guard for use as rescue craft. Nine HRP-1s formed the backbone of the first Marine helicopter transport squadron, HMX-1, and were used in various exercises designed to test the helicopter's ability to deliver troops in beach assault or forward battlefield operations.
284:
In all, 20 HRP-1s were ordered by the United States Navy, which passed most of their order to the U.S. Marine Corps and the Coast Guard. Three additional helicopters were delivered to the U.S. Coast Guard with the designation HRP-1G. An improved PV-17 version with an all-metal skin was developed with
292:
In service, the HRP-1 frequently suffered various teething and maintenance troubles such as broken engine mounts and loose fittings; it was not unusual for the fabric covering to rip loose from the helicopter in flight, often entangling the rotor blades. Despite these issues, the relative success of
228:
Following a series of mechanical incidents with the prototype, including stripped transmission gears, it was determined that use of common automotive parts in the helicopter transmission were inadequate to the severe loads imposed by flight; subsequent prototypes built after the war used stronger
280:
As the first U.S. military helicopter in service with a significant transport capability, the HRP-1 was immediately put to use transporting cargo and personnel. Although referred to officially as the HRP-1, or "Harp", the helicopter's distinctive shape, with no protruding nose beyond the forward
281:
rotor's axis, soon earned it the nickname "The Flying Banana". The first HRP-1 Rescuer flew on 15 August 1947, and a second batch of 10 was built later, with the final machine delivered in 1949. All were powered by the 600 hp (450 kW) Pratt & Whitney R-1340-AN-1 engine.
212:
engine. To ensure that the rotors did not hit each other, the rear end of the fuselage curved upwards so the rear rotor was higher than the forward rotor. The fuselage was constructed of ordinary mild steel tubing, filled out with wooden ribs, and covered with
169:. An improved PV-17 variant was later produced as the HRP-2. As one of the first transport helicopters in military service, the HRP-1 was capable of carrying two crewmen and 8–10 passengers or 2,000 lb. (907 kg) of cargo.
573:
951:
2147:
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944:
2117:
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1500:
937:
2142:
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in
February 1944. The "Dogship" was a novel tandem-rotor helicopter with a fixed tricycle landing gear, powered by a 600 hp (447 kW)
2122:
2112:
601:
2137:
1340:
879:
843:
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The prototype helicopter (designated PV-3 by
Piasecki, though commonly known to test personnel as "The Dogship") first flew at
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100:
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25:
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were constructed; one was used as a static test aircraft and the other was used for development flying.
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911:
351:
Military designation for two further PV-3s, one for static testing and one for flight trials.
1316:
82:
72:
329:
2028:
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1756:
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62:
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1976:
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1381:
1111:
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122:
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632:"HRP-1 (Piasecki PV-3) Rescuer | Naval Helicopter Association Historical Society"
1421:
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661:
269:
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721:
297:
family of helicopters. Two surviving aircraft are in storage at the
237:
865:. Washington, D.C.: History and Museums Division, U.S. Marine Corps.
363:
Three United States Navy HRP-1s for the United States Coast Guard.
328:
320:
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247:
219:
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1482:
1336:
933:
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793:
473:
eight passengers or 2,000 lb. (907kg) cargo or six stretchers
172:
It was first flown in early 1945, entered service in 1947.
574:
List of United States Navy aircraft designations (pre-1962)
668:. U.S. Naval Academy Alumni Association & Foundation
204:
in March 1945 following a development contract from the
921:"Navies Helicopter For Land or Sea Has Twin Rotors."
912:"Navies Helicopter For Land or Sea Has Twin Rotors."
357:
Production variant, 20 built including three HRP-1Gs.
236:
The helicopter got the nicknames " Harp" and "flying
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2055:
2037:
2019:
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831:
701:American Helicopter Museum & Education Center
440:3-view line drawing of the Piasecki HRP-2 Rescuer
426:3-view line drawing of the Piasecki HRP-1 Rescuer
299:American Helicopter Museum & Education Center
293:Piasecki's tandem rotor design would lead to the
773:"Piasecki PV-3 HRP-1 Rescuer, U.S. Marine Corps"
2148:1940s United States military transport aircraft
341:Prototype tandem-rotor helicopter powered by a
1494:
1348:
945:
602:"Piasecki: The Dogship and the Flying Banana"
184:Piasecki HRP-1 "Flying Banana" helicopter at
8:
802:"And now for something completely different"
260:Fleet of HRP-1 helicopters take flight, 1949
240:", a name also carried on by its successor.
834:The Illustrated Encyclopedia of Helicopters
145:transport or rescue helicopter designed by
1993:
1910:
1817:
1752:
1723:
1602:
1573:
1521:
1501:
1487:
1479:
1355:
1341:
1333:
952:
938:
930:
854:The Illustrated Encyclopedia of Aircraft
534:105 mph (169 km/h, 91 kn)
519:2,640.51 sq ft (245.30 m)
451:The Illustrated Encyclopedia of Aircraft
305:and a third is under restoration at the
41:Tandem-rotor transport/rescue helicopter
800:Thomason, Tommy H. (29 December 2010).
589:
540:300 mi (483 km, 260 nmi)
513:2 × 41 ft 0 in (12.50 m)
153:. The Piasecki PV-3 was adopted as the
229:components. Two prototypes designated
15:
595:
593:
7:
485:14 ft 10 in (4.52 m)
479:54 ft 0 in (16.46 m)
2118:United States military helicopters
369:Metal skinned variant, five built.
14:
2133:Single-engined piston helicopters
863:Marines and Helicopters 1946-1962
856:. London: Orbis Publishing. 1985.
285:five ordered in June 1948 as the
1512:helicopter designations pre-1962
925:, November 1945, cover art work.
662:"Helo Operations, Class of 1945"
433:
419:
380:
24:
2143:1940s United States helicopters
1814:Helicopter, Transport 1944-1962
872:Jane's Encyclopedia of Aviation
507:radial engine , 600 hp (447 kW)
505:Pratt & Whitney R-1340-AN-1
210:Pratt & Whitney R-1340-AN-1
870:Taylor, Michael J. H. (1989).
1:
2128:Search and rescue helicopters
1990:Helicopter, Utility 1950-1962
1749:Helicopter, Trainer 1948-1962
497:7,225 lb (3,277 kg)
491:5,301 lb (2,404 kg)
2123:Piasecki Helicopter aircraft
2113:Aircraft first flown in 1945
1907:Helicopter, Utility pre-1949
1720:Helicopter, Trainer pre-1948
546:8,530 ft (2,600 m)
1375:Piasecki/Vertol helicopters
961:Piasecki Helicopter, Vertol
874:. London: Studio Editions.
861:Rawlins, Eugene W. (1976).
838:. New York: Bonanza Books.
325:An HRP without skin in 1953
2164:
1518:Helicopter, Anti-submarine
1364:Piasecki Helicopter/Vertol
830:Apostolo, Giorgio (1984).
806:U.S. Navy Aircraft History
405:United States Marine Corps
303:West Chester, Pennsylvania
186:Naval Air Station Key West
163:United States Marine Corps
101:United States Marine Corps
33:A U.S. Coast Guard HRP-1G
972:
965:Boeing Rotorcraft Systems
606:U.S. Centennial of Flight
395:United States Coast Guard
345:piston engine, one built.
167:United States Coast Guard
97:United States Coast Guard
32:
23:
18:
2138:Tandem rotor helicopters
388:United States of America
1599:Helicopter, Observation
916:, November 1945, p. 49.
600:Day, Dwayne A. (2003).
458:General characteristics
411:Specifications (HRP-2)
334:
326:
277:
261:
253:
225:
193:
777:1,000 Aircraft Photos
726:Classic Rotors Museum
697:"Aircraft in Storage"
686:Apostolo 1984, p. 79.
332:
324:
307:Classic Rotors Museum
267:
259:
251:
223:
183:
897:Piasecki XHRP-1 page
650:Rawlins 1976, p. 20.
511:Main rotor diameter:
268:Eight HRP-1s aboard
132:Piasecki HRP Rescuer
907:Piasecki HRP-2 page
902:Piasecki HRP-1 page
612:on 19 December 2011
556:Related development
252:HRP-1 Rescuer, 1947
244:Operational history
151:Piasecki Helicopter
89:Primary users
53:Piasecki Helicopter
1453:VZ-8/PA-59 Airgeep
1417:H-25/HUP Retriever
400:United States Navy
335:
327:
311:Ramona, California
278:
262:
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206:United States Navy
194:
159:United States Navy
93:United States Navy
2100:
2099:
2096:
2095:
1985:
1984:
1902:
1901:
1809:
1808:
1744:
1743:
1715:
1714:
1594:
1593:
1570:Helicopter, Crane
1565:
1564:
1476:
1475:
1431:Piasecki Aircraft
1407:H-16 Transporter
1397:PV-15 Transporter
1368:Piasecki Aircraft
1330:
1329:
923:Popular Mechanics
914:Popular Mechanics
660:Close, Robert A.
333:HRP-1 with floats
128:
127:
2155:
1994:
1911:
1818:
1753:
1724:
1603:
1574:
1522:
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1387:PV-3/HRP Rescuer
1357:
1350:
1343:
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947:
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608:. Archived from
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43:Type of aircraft
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2015:
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1392:PV-14 Retriever
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274: (CVE-122)
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188:minus exterior
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117:
107:
99:
95:
44:
12:
11:
5:
2161:
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891:External links
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747:"USCG History"
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453:1985, p. 2716.
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147:Frank Piasecki
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1531:
1529:
1527:
1523:
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1516:
1511:
1504:
1499:
1497:
1492:
1490:
1485:
1484:
1481:
1469:
1466:
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1433:
1429:
1423:
1420:
1418:
1415:
1413:
1410:
1408:
1405:
1403:
1402:PV-17 Rescuer
1400:
1398:
1395:
1393:
1390:
1388:
1385:
1383:
1380:
1379:
1377:
1373:
1369:
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1210:
1208:
1205:
1203:
1200:
1198:
1195:
1193:
1190:
1188:
1185:
1183:
1180:
1178:
1175:
1173:
1170:
1168:
1165:
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1160:
1158:
1155:
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1133:
1130:
1128:
1125:
1123:
1120:
1118:
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1110:
1108:
1105:
1103:
1100:
1098:
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1090:
1088:
1085:
1083:
1080:
1078:
1075:
1073:
1070:
1068:
1065:
1063:
1060:
1058:
1055:
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1050:
1048:
1045:
1043:
1040:
1038:
1035:
1033:
1030:
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1025:
1023:
1020:
1018:
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1010:
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1005:
1003:
1000:
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985:
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978:
975:
974:
971:
967:model numbers
966:
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948:
943:
941:
936:
935:
932:
926:
924:
919:
917:
915:
910:
908:
905:
903:
900:
898:
895:
894:
890:
883:
881:0-517-69186-8
877:
873:
868:
864:
859:
855:
851:
847:
841:
836:
835:
828:
827:
822:
807:
803:
796:
794:
790:
778:
774:
767:
764:
752:
748:
742:
739:
727:
723:
717:
714:
702:
698:
692:
689:
683:
680:
667:
663:
656:
653:
647:
644:
633:
627:
624:
611:
607:
603:
596:
594:
590:
584:
579:
575:
572:
571:
570:
569:
568:Related lists
563:
562:Piasecki H-21
560:
559:
558:
557:
550:
545:
542:
539:
536:
533:
530:
529:
528:
526:
518:
515:
512:
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495:Gross weight:
493:
490:
489:Empty weight:
487:
484:
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466:
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459:
454:
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449:
436:
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410:
406:
403:
401:
398:
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392:
389:
378:
377:
373:
368:
365:
362:
359:
356:
353:
350:
347:
344:
340:
337:
336:
331:
323:
316:
314:
312:
308:
304:
300:
296:
295:Piasecki H-21
290:
288:
282:
275:
273:
266:
258:
250:
243:
241:
239:
234:
232:
222:
218:
216:
211:
207:
203:
199:
191:
187:
182:
175:
173:
170:
168:
164:
160:
156:
155:HRP-1 Rescuer
152:
149:and built by
148:
144:
141:
140:United States
137:
134:(also called
133:
124:
123:Piasecki H-21
121:
116:
115:
111:
106:
105:
102:
98:
94:
91:
88:
87:
84:
81:
79:Introduction
78:
77:
74:
71:
69:First flight
68:
67:
64:
61:
58:
57:
54:
51:
49:Manufacturer
48:
47:
40:
37:
36:
31:
27:
22:
17:
1865:
1401:
1386:
1011:
986:
922:
913:
871:
862:
853:
845:0-517-439352
833:
823:Bibliography
809:. Retrieved
805:
780:. Retrieved
776:
766:
754:. Retrieved
750:
741:
729:. Retrieved
725:
716:
704:. Retrieved
700:
691:
682:
670:. Retrieved
665:
655:
646:
635:. Retrieved
626:
614:. Retrieved
610:the original
605:
567:
566:
555:
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531:
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522:
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343:Wright R-975
291:
286:
283:
279:
271:
235:
230:
227:
202:Pennsylvania
195:
171:
154:
143:tandem-rotor
135:
131:
129:
108:Number built
19:HRP Rescuer
525:Performance
501:Powerplant:
192:fabric skin
176:Development
2107:Categories
811:26 January
782:10 January
756:10 January
731:12 October
706:12 October
637:2024-06-11
580:References
2039:McCulloch
1933:McDonnell
1915:McDonnell
1840:McDonnell
1578:McDonnell
471:Capacity:
448:Data from
374:Operators
276:, in 1951
270:USS
59:Designer
2075:Sikorsky
2057:Piasecki
1969:Sikorsky
1951:Piasecki
1876:Sikorsky
1858:Piasecki
1728:Sikorsky
1679:Sikorsky
1643:Gyrodyne
1544:Sikorsky
551:See also
317:Variants
217:fabric.
672:17 June
616:17 June
483:Height:
477:Length:
157:by the
138:) is a
1757:Hiller
1625:Hiller
1468:PA-890
963:, and
878:
842:
538:Range:
385:
360:HRP-1G
348:XHRP-1
238:banana
231:XHRP-1
198:Morton
165:, and
1998:Kaman
1775:Kaman
1661:Kaman
1557:HSS-2
1552:HSS-1
1458:PA-97
1448:PA-39
1438:PA-2B
751:Helis
722:"HRP"
585:Notes
465:Crew:
366:HRP-2
354:HRP-1
287:HRP-2
272:Palau
215:doped
190:doped
38:Role
2088:HU2S
2021:Bell
2011:HU2K
1894:HR3S
1889:HR2S
1793:Bell
1707:HO5S
1702:HO4S
1697:HO3S
1692:HO2S
1526:Bell
1463:X-49
1422:VZ-2
1412:H-21
1382:PV-2
876:ISBN
840:ISBN
813:2014
784:2013
758:2013
733:2021
708:2021
674:2012
618:2012
503:1 ×
338:PV-3
136:Harp
130:The
83:1947
73:1945
2083:HUS
2065:HUP
2047:HUM
2029:HUL
2006:HUK
1977:HJS
1959:HJP
1941:HJH
1923:HJD
1884:HRS
1866:HRP
1848:HRH
1830:HRB
1801:HTL
1783:HTK
1765:HTE
1736:HNS
1687:HOS
1669:HOK
1651:HOG
1633:HOE
1615:HOC
1586:HCH
1534:HSL
1510:USN
1322:414
1317:360
1312:352
1307:347
1302:340
1297:309
1292:308
1287:307
1282:301
1277:299
1272:298
1267:297
1262:237
1257:235
1252:234
1247:227
1242:222
1237:219
1232:216
1227:215
1222:213
1217:210
1212:180
1207:179
1202:177
1197:176
1192:173
1187:167
1182:166
1177:165
1172:160
1167:157
1162:150
1157:147
1152:145
1147:143
1142:141
1137:137
1132:129
1127:119
1122:114
1117:107
1112:105
309:in
301:in
112:28
2109::
1107:90
1102:82
1097:76
1092:71
1087:63
1082:51
1077:49
1072:47
1067:45
1062:44
1057:43
1052:42
1047:34
1042:32
1037:29
1032:26
1027:22
1022:21
1017:18
1012:17
1007:15
1002:14
997:12
992:11
804:.
792:^
775:.
749:.
724:.
699:.
664:.
604:.
592:^
313:.
200:,
161:,
1502:e
1495:t
1488:v
1366:/
1356:e
1349:t
1342:v
987:3
982:2
977:1
953:e
946:t
939:v
884:.
848:.
815:.
786:.
760:.
735:.
710:.
676:.
640:.
620:.
467:2
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