Here are some photos I took of the Piasecki/Vertol H-21 Workhorse helicopter examples on display at the Pima Air Museum and at March AFB.

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CH-21C Workhorse 51-15857

NMoUSAF 2018

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CH-21B Workhorse 56-2159

Pima Air Museum 2017

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CH-21B Workhorse 53-4326

March AFB 2018

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H-21B Workhorse 53-4366

Museum of Flight’s Restoration Hangar 2017

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H-21C Shawnee

Evergreen Museum 2018