A Brief History of Kaman Innovative VTOL Aircraft and System Designs

Nowadays, helicopter manufacturers have been acquired or merged within conglomerated aerospace giants worldwide. However, only a few companies remained independent from their original owners, such as Kaman Aerospace Corporation. Thus, on December 12, 2021, Kaman celebrated its 75th anniversary. This paper revisits some VTOL aircraft and system designs that Kaman designers have achieved since 1945.