PIASECKI (VERTOL) H-21 WORKHORSE / SHAWNEE

H-21 SERVICE

Manufacturer: Piasecki Helicopter Corp., Morton, Pennsylvania, USA
(In 1956, became Vertol Aircraft Corp.)
Models: Model PV-3, PV-17, PV-22, Vertol Model 42, 43, 44, 71
Designations: H-21 (CH-21); HRP, CH-125 / CH-127 (Canada)
Names: Rescuer (USN); Workhorse (USAF); Shawnee (US Army)
First official flight: (XHRP-1) ?
(YH-21) 11/04/1952
Factory production period: 1947 - 1959
Primary service period: 1948 - 1965
Last official flight: (CH-21C) 1965

H-21 VARIANTS

? Model PV-3 XHRP-1 2  
? Model PV-3 HRP-1 35  
1948 Model PV-17 HRP-2 5 Total: 042
         
1952 Model PV-22 YH-21 18  
1953 Model 42 H-21A 38  
1953 Model 42 H-21B 168  
1953 Model 43 H-21C 334 Total: 558
         
? Model 44A Model 44A ?  
? Model 44B Model 44B ?  
? Model 44C Model 44C ? Total: ?

Grand Total: 600
1957 Foreign built - West Germany:
Model 43		 H-21C

32

Grand Total: 032

H-21 PRODUCTION

Military Helicopters

XHRP-1 Rescuer
Prototype, singled-engined, tandem
3-bladed rotor transport helicopter
for the US Navy and USMC.
Produced
Piasecki Morton, Pennsylvania (P)

BuNo.37968, 37969
- Second airframe only accepted.
- 1 (85390), additional airframe cancelled.		 ? 2 Total: 002

HRP-1 Rescuer
 As XHRP-1, fabric fuselage skin.
3 to USCG.
Produced
Piasecki Morton, Pennsylvania (P)

BuNo.111809 / 111828 1 / 20    
BuNo.111834 / 111848 21 / 35 35 Total: 035

HRP-2 Rescuer
As HRP-1, redesigned metal fuselage.
All 5 to USCG.
Produced
Piasecki Morton, Pennsylvania (P)

BuNo.111829 / 111833 1 / 5 5 Total: 005

YH-21 Workhorse
As HRP-2, service test version for
USAF evaluation.
Produced
Piasecki Morton, Pennsylvania (PH)

50-1231 / 50-1248 ? 18 Total: 018

H-21A Workhorse
As YH-21, engine upgrade, minor changes.
Redesignated as CH-21A in 1962.
Produced
Piasecki Morton, Pennsylvania (PH)

51-15238 / 51-15269 ?    
52-8487 / 52-8492
- 6 to Canada as 9610 / 9615, redesignated
  as CH-125 in 1968.		 ? 38 Total: 038

H-21B Workhorse
As H-21A, engine upgrade, various
improvements, external fuel tanks.
9 to Canada as 9636 / 9644, redesignated
as CH-125 in 1968.
Redesignated as CH-21B in 1962.
Produced
Piasecki / Vertol Morton, Pennsylvania (PH / VL)

51-15854 / 51-15880 B-1 / B-27    
52-8665 / 52-8679 B-28 / B-42    
52-8681 / 52-8709 B-43 / B-71    
53-4322 / 53-4402 B-72 / B-152    
54-4000 / 54-4008
- 9 to France.		 B-153 / B-161    
55-5127 / 55-5131
- 5 to France.		 B-162 / B-166    
57-2610, 57-2611 B-167, B-168 168 Total: 168

H-21C Shawnee
As H-21B, version for US Army,
ventral sling hook, minor changes.
Redesignated as CH-21C in 1962.
Produced 1953 - 1959
Piasecki / Vertol Morton, Pennsylvania (PH / VL)

51-15881 / 51-15913 C-1 / C-33    
52-8613 / 52-8664 C-34 / C-85    
52-8680 ?    
55-4132 / 55-4221 C-86 / C-175    
56-2015 / 56-2160 C-177 / C-322    
56-4343 / 56-4354 C-323 / C-334 334 Total: 334

Civil Helicopters

Model 44A
As H-21B, civil 19-seat version, engine upgrade.
5 to Canada as CH-127, 9591, 9592, 9594 / 9596.
Produced
Piasecki Morton, Pennsylvania

civil reg. ? ? Total: ?

Model 44B
As 44A, 15-seat passenger / cargo version.
2 to Sweden designated as HKP-1.
Produced
Piasecki Morton, Pennsylvania

civil reg. ? ? Total: ?

Model 44C
As 44A, executive 8-seat version.
9 to Sweden designated as HKP-1.
Produced
 Piasecki Morton, Pennsylvania

civil reg. ? ? Total: ?

 

Grand Total: 600

Foreign built - West Germany:
 H-21C
West German built version.
Produced 1957 - 1959
Weser Flugzeugbau, West Germany

(W. Germany) 83+01 / 83+32 WG.1 / WG.32 32 Grand Total: 0032

H-21 CONVERSIONS

USAF

SH-21B 1+ H-21B, search and rescue conversions, equipment changes.
(HH-21B) 1+ 1962, redesignation of the SH-21B.

US Army

XH-21D

2

 Model 71
H-21C, 1957, prototypes with twin-turbine engine upgrade.

FOREIGN MILITARY SERVICE
 - The H-21 served with the military forces of Canada, France, Japan, Sweden,
   West Germany and Zaire.

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