![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 front view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons File:Rolls-Royce 250-B17F turboprop engine left front view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/1/1e/Rolls-Royce_250-B17F_turboprop_engine_left_front_view_at_JASDF_Gifu_Air_Base_November_19%2C_2017.jpg)
File:Rolls-Royce 250-B17F turboprop engine left front 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)
File:Rolls-Royce 250-B17F turboprop engine left rear top view at JASDF Gifu Air Base November 19, 2017.jpg - Wikimedia Commons
![Anyone working on the rolls royce m250 engine beware these connectors can be swapped and will screw in all the way which will result in lack of engine rpm readout. : r/aviationmaintenance Anyone working on the rolls royce m250 engine beware these connectors can be swapped and will screw in all the way which will result in lack of engine rpm readout. : r/aviationmaintenance](https://preview.redd.it/h1a1ila4xbe61.jpg?auto=webp&s=6a40c71ff96eab6e0078089e8b76d53b5229241a)
Anyone working on the rolls royce m250 engine beware these connectors can be swapped and will screw in all the way which will result in lack of engine rpm readout. : r/aviationmaintenance
![Rolls Royce M250 C20 Engine. Taken from "engineerdir.com", products... | Download Scientific Diagram Rolls Royce M250 C20 Engine. Taken from "engineerdir.com", products... | Download Scientific Diagram](https://www.researchgate.net/publication/352891279/figure/fig1/AS:1040860028358658@1625171777975/Rolls-Royce-M250-C20-Engine-Taken-from-engineerdircom-products-section.png)