Rolls-Royce 250 Engine – Lessons From The Field | helicoptermaintenancemagazine.com
Investigation Report
Allison Model 250 - Wikipedia
Allison 250
Rolls-Royce introduces M250 engine variant for commercial and military helicopters
Allison 250 Engine Cutaway Full Start - YouTube
M250-C47B Engine for Sale! | Air Services Int'l., LLC
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
M250 Turboshaft: Helicopter Engine | Rolls-Royce
Available Now: Rolls-Royce M250-C47B Engine | Air Services Int'l., LLC
Rolls-Royce M250 | Air Services Int'l., LLC
Rolls-Royce 250-C20B Engine Available | Air Services Int'l., LLC