The CFM RISE open fan engine and the unducted propeller GE and Safran are betting the next thirty years on
CFM's RISE open fan engine targets 20% lower fuel burn by ditching the duct—here's the physics, the risks, and the 2035 timeline.
VectorCFM's RISE open fan engine targets 20% lower fuel burn by ditching the duct—here's the physics, the risks, and the 2035 timeline.
Vector