![Rolls-Royce America on Twitter: "This week we are at #HeliExpo featuring our M250 and RR300 helicopter engines. Stop by and see us at the Rolls-Royce booth. https://t.co/6duMPQkwg2" / Twitter Rolls-Royce America on Twitter: "This week we are at #HeliExpo featuring our M250 and RR300 helicopter engines. Stop by and see us at the Rolls-Royce booth. https://t.co/6duMPQkwg2" / Twitter](https://pbs.twimg.com/media/DXEIOvUW4AEx2En.jpg)
Rolls-Royce America on Twitter: "This week we are at #HeliExpo featuring our M250 and RR300 helicopter engines. Stop by and see us at the Rolls-Royce booth. https://t.co/6duMPQkwg2" / Twitter
![File:Rolls-Royce 250-B17F turboprop engine left side view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons File:Rolls-Royce 250-B17F turboprop engine left side view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/Rolls-Royce_250-B17F_turboprop_engine_left_side_view_at_JASDF_Gifu_Air_Base_November_19%2C_2017.jpg/2560px-Rolls-Royce_250-B17F_turboprop_engine_left_side_view_at_JASDF_Gifu_Air_Base_November_19%2C_2017.jpg)
File:Rolls-Royce 250-B17F turboprop engine left side view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons
![File:Rolls-Royce 250-B17F turboprop engine left rear view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons File:Rolls-Royce 250-B17F turboprop engine left rear view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/3b/Rolls-Royce_250-B17F_turboprop_engine_left_rear_view_at_JASDF_Gifu_Air_Base_November_19%2C_2017.jpg)
File:Rolls-Royce 250-B17F turboprop engine left rear view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons
![File:Rolls-Royce 250-B17F turboprop engine left rear top view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons File:Rolls-Royce 250-B17F turboprop engine left rear top view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/7/7f/Rolls-Royce_250-B17F_turboprop_engine_left_rear_top_view_at_JASDF_Gifu_Air_Base_November_19%2C_2017.jpg)