This Radical Jet Engine Failed in 1986 — Now It’s Coming Back

Why does this new jet engine have no cover around its fan blades? A radical new open-fan jet engine could become one of the biggest changes in commercial aviation in decades. Developed through the CFM RISE program by GE Aerospace and Safran, this unusual engine design removes the traditional nacelle around the fan and could potentially reduce fuel consumption by more than 20% compared with today’s most efficient jet engines. But this idea isn’t actually new. Back in 1986, General Electric tested a similar unducted fan engine on a Boeing 727. The technology delivered impressive fuel savings, but noise concerns, certification challenges, changing fuel prices, and industry hesitation helped kill the concept. Now, almost 40 years later, the open-fan engine is making a comeback. In this aviation documentary, we explore how modern turbofan engines work, why bigger bypass ratios improve efficiency, why traditional engine casings are becoming a limitation, what happened to the revolutionary 1980s open-fan program, and why manufacturers believe the technology could finally succeed in the 2030s. We also look at the challenges still standing in the way — including aircraft noise, blade safety, engine certification, airline acceptance, and whether passengers will actually feel comfortable flying next to exposed fan blades. Could this strange-looking engine become the future of commercial aviation? Watch until the end and decide for yourself. Would you fly on an aircraft powered by an open-fan engine? Let me know in the comments. If you enjoy aviation documentaries, aircraft technology, jet engines, aerospace engineering, and the future of flight, consider liking the video and subscribing for more. #JetEngine #Aviation #OpenFan #CFMRISE #Aircraft #Aerospace #FutureOfAviation #GEE Aerospace #Safran