Piasecki H-21 / CH-21
Medium Transport Helicopter
Photo ©: Karsten Palt
The Piasecki H-21 Workhorse / Shawnee is a single-engine tandem rotor medium transport helicopter produced by the US-American manufacturer Piasecki Helicopter Corp., later Vertol Aircraft Corporation. The H-21 was redesignated CH-21 in 1962.
The Piasecki H-21 is a development of the Piasecki HRP-2 Rescuer. 32 H-21C Shawnee were assembled by Weser Flug GmbH in Germany for the West German Army.
| Crew | 2 | |
| Passengers | 22 | |
| Propulsion | 1 Radial Engine | |
| Engine Model | Wright R-1820-103 Cyclone | |
| Engine Power | 1063 kW | 1425 hp |
| Speed | 211 km/h | 114 kts 131 mph |
| Service Ceiling | 2.362 m | 7.750 ft |
| Range | 644 km | 348 NM 400 mi. |
| Empty Weight | 3.629 kg | 8.001 lbs |
| max. Takeoff Weight | 6.668 kg | 14.700 lbs |
| Rotor Blades (main/tail) | 3/3 | |
| Main Rotor Diameter | 13,41 m | 43 ft 12 in |
| Tail Rotor Diameter | 13,41 m | 43 ft 12 in |
| Rotor Disc Area | 141,2 m² | 1520 ft² |
| Length (Fuselage) | 16,00 m | 52 ft 6 in |
| Length | 26,31 m | 86 ft 4 in |
| Height | 4,70 m | 15 ft 5 in |
| First Flight | 11.04.1952 | |
| Production Status | out of production | |
| Total Production | ca. 600 | |
| Data for (Version) | Piasecki H-21C Shawnee | |
| Variants | H-21A Workhorse / CH-21A, H-21B Workhorse / CH-21B, SH-21B Workhorse / HH-21B, H-21C Shawnee / CH-21C, CH-127 | |
| [Photo-ID: 11342] © Karsten Palt 2015-06-04 | |
 | Piasecki CH-21B Workhorse United States Air Force (USAF) Reg.: 53-4326 c/n: B.76 |
| March Field Air Museum [Riverside, CA] | |
| [Photo-ID: 11343] © Karsten Palt 2015-06-04 | |
 | Piasecki CH-21B Workhorse United States Air Force (USAF) Reg.: 53-4326 c/n: B.76 |
| March Field Air Museum [Riverside, CA] | |
| [Photo-ID: 11173] © Karsten Palt 2015-06-03 | |
 | Piasecki CH-21C Workhorse United States Army Reg.: 56-2159 c/n: C.321 |
| Pima Air and Space Museum [Tucson, AZ] | |
| [Photo-ID: 5429] © Karsten Palt 2012-01-11 | |
 | Piasecki H-21B Workhorse United States Air Force (USAF) Reg.: 51-15857 c/n: B.4 |
| National Museum of the United States Air Force [Dayton, Ohio / USA (Wright-Patterson AFB)] | |
| [Photo-ID: 7754] © Karsten Palt 2013-09-01 | |
 | Piasecki H-21C German Army Aviation / Heer Reg.: 83+07 c/n: WG7 |
| Hubschraubermuseum Bueckeburg [Bueckeburg] | |
| [Photo-ID: 7755] © Karsten Palt 2013-09-01 | |
 | Piasecki H-21C German Army Aviation / Heer Reg.: 83+07 c/n: WG7 |
| Hubschraubermuseum Bueckeburg [Bueckeburg] | |
| [Photo-ID: 3518] © Karsten Palt 2010-06-12 | |
 | Piasecki H-21C German Army Aviation / Heer Reg.: 83+08 c/n: WG8 |
| Luftwaffenmuseum [Berlin - Gatow] | |
| [Photo-ID: 3519] © Karsten Palt 2010-06-12 | |
 | Piasecki H-21C German Army Aviation / Heer Reg.: 83+08 c/n: WG8 |
| Luftwaffenmuseum [Berlin - Gatow] | |
| [Photo-ID: 1441] © Karsten Palt 2008-09-27 | |
 | Piasecki H-21C German Army Aviation / Heer Reg.: 83+11 c/n: WG11 |
| Flugausstellung L.+P. Junior [Hermeskeil] | |