A propfan, also called an open rotor engine, open fan engine [1] [2] is an aircraft engine combining features of turbofans and turboprops.It uses advanced, curved propeller blades …

开式转子发动机(Open Rotor Engine)，早期曾被称作桨扇发动机(Propfan Engine)或无涵道风扇发动机(Unducted Fan Engine)，是一种用燃气通过动力涡轮输出轴功率来传动桨扇的燃气涡轮 …

2023年6月19日 · GE once thought super-efficient propfans were the future of air travel, until low fuel prices in the late 1980s moved fuel consumption down the list of priorities. Now, it's …

2025年3月31日 · Such high-speed propulsors are called propfans. Another variation of the propulsor involves the application of two concentric propellers on the same centreline, driven …

Prop-Fan operating conditions. The measured pressure distributions are employed to explain the observed Prop-Fan performance and the usefulness of the surface pressure data is …

Studies have established that advanced turboprop (prop-fan) equipped aircraft will reduce fuel consumption by 15 to 30 percent compared to aircraft equipped with high-bypass turbofan …

The Prop-Fan is an advanced technology propeller which overcomes the deficiencies of older props, and provides significant fuel burn advantage over the most modern jet engines. As Prop …

These data represent Hamilton Standard's projections of prop-fan characteristics for aircraft that are expected to be in-service in the 1985 to 1990 time frame. The basic prop-fan configuration …

2024年6月19日 · An Unducted Fan has a large number of highly twisted blades housed outside of the engine cowling. Photo: NASA Early Days. Back in the 1940s, American propeller maker …

In 1983 the NASA-Lewis Research Center contracted with Hamilton Standard to design, build and test a near full scale Prop-Fan, designated the Large Scale Advanced Prop-Fan (LAP). This …