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piasecki H-21
| Del'd: 214 - 1952 to 1974 |

| History of this Model in this Organisation: | | |
US Air Force procurement began with 18 of the YH-21 Work Horse in 1952, which was the first tandem rotor helicopter used by the USAF. 33 H-21As followed and it distinguished itself in the SAR role, where it performed well in the Arctic environment. 168 H-21Bs were delivered. These were powered by the improved 1425hp Curtis-Wright R-1820-107 piston Cyclone. Most had been retired by 1966 but a few lingered on in service for almost 10 more years.
54 Air Rescue Sqdn Goose Bay LAB has 2 H-21Bs serve radar dew line and aircraft rescue
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| Units with this Model in this Organisation: | | |
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| Roles of this Model in this Organisation: | | |
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| Construction Numbers of this Model in this Organisation: | Help Us | |
| C/N | Mod | Built | ID In this Organisation | In other Org |
| | B-21 | | | 51-15873: Piasecki PV-17 c/n B-21, ff?; del USAF as H-21B 51-15873; un+
| 02-4751: del JASDF as H-21B 02-4751 unk; units unk; wfu & soc un+
| | | B-24 | | | 51-15877: Piasecki PV-17 c/n B-24, ff?; del USAF as H-21B 51-15877; un+
| 02-4752: del JASDF as H-21B 02-4752 unk; units unk; wfu & soc un+
| | | B-26 | | | 51-15879: Piasecki PV-17 c/n B-26, ff?; del USAF as H-21B 51-15879; un+
| 02-4753: del JASDF as H-21B 02-4753 unk; units unk; wfu & soc un+
| | | B-31 | | | 52-8668: Piasecki PV-17 c/n B-31, ff?; del USAF as H-21B 52-8668; uni+
| 02-4754: del JASDF as H-21B 02-4754 unk; units unk; wfu & soc un+
| | | B-61 | | | 52-8699: Piasecki PV-17 c/n B-61, ff?; del USAF as H-21B 52-8699; uni+
| 02-4755: del JASDF as H-21B 02-4755 unk; units unk; w/o 10Sep64.
| |  | B-76 | h-21b | 1955 | 53-4326: USAF; to civ as N6792 May03 pictured preserved at March Field Air Museum, CA
| - N6792: from 1982-;
Sep85 seized during drug raid, donated to M+
| | | B-148 | | | 53-4398: Piasecki PV-17 c/n B-148, ff?; del USAF as H-21B 53-4398; un+
| 02-4756: del JASDF as H-21B 02-4756 unk; units unk; wfu & pre Ha+
| | | B-149 | | | 53-4399: Piasecki PV-17 c/n B-149, ff?; del USAF as H-21B 53-4399; un+
| 02-4757: del JASDF as H-21B 02-4757 unk; units unk; wfu & soc un+
| | | B-159 | | | 54-4006: Piasecki PV-17 c/n B-159, ff?; del USAF as H-21B 54-4006; un+
| 02-4758: del JASDF as H-21B 02-4758 unk; units unk; w/o 16Mar63.
| | | B-160 | | | 54-4007: Piasecki PV-17 c/n B-160, ff?; del USAF as H-21B 54-4007; un+
| 02-4759: del JASDF as H-21B 02-4759 unk; units unk; wfu & pre Gi+
| | | B-161 | | | 54-4008: Piasecki PV-17 c/n B-161, ff?; del USAF as H-21B 54-4008; un+
| 02-4760: del JASDF as H-21B 02-4760 unk; units unk; wfu & soc un+
| | 11 C/N found in this Organisation
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