RENO, Nev., -- Pratt & Whitney Canada’s PT6A engine family, used widely in agricultural aviation and firefighting, has surpassed one million flight hours in 2025.
The PT6A line, first certified for aerial application in 1977, has expanded to eight variants and nearly 5,000 engines produced for aircraft built by Air Tractor and Thrush Aircraft. These single-engine platforms are used globally for crop application, pest control, forest management, and wildfire response. The broader PT6 family has powered more than 155 aircraft types and accumulated over 500 million flight hours since 1963, while related Pratt & Whitney Canada engines such as the PW100 continue to support fixed-wing and rotary-wing firefighting operations around the world.
The milestone highlights the sustained demand for turboprop engines that support essential missions in food production, environmental management, and wildfire suppression. It also underscores the long-term role of legacy engine families like the PT6A in sectors where reliability and durability directly affect public safety and resource protection.