First flight of the Piasecki/vertol CH-21C Shawnee

Friday, April 11, 1952

 

Description

Source: "US Army Rotary Wing Training & Test Aircraft 1940s – 1960s", Paul, Fardink, AHS 2018 VTOL History Calendar - April

 

Aircraft related to this milestone
Piasecki CH-21C Shawnee

Attribution