MULTIZ321
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ROYAL HOLIDAY CLUB RHC (POINTS)
30 Years in the Making, a Simple Gearbox is Posed to Change the Jet Engine - by Eric Limer/ Flight/ popularmechanics.com
"Jet engines can be much more efficient and much quieter than they are today. The trick to doing it is as simple as adding a gearbox, but the process of doing so has taken nearly 30 years. But the journey is almost over.
As Bloomberg Business explains in a fantastic little retrospective on the tech's evolution, the new kind of engine—Pratt & Whitney's PurePower Geared Turbofan (GTF)—traces its roots back as far as 1988. At its heart, the innovation is simple. A normal turbofan engine has a fan on the front, for air intake, and a smaller turbine further inside. These two components share the same shaft, but it's an inefficient solution. If both pieces are spinning at optimal speeds, the fan on the front would be going much slower (and therefore would be both more efficient and way quieter) than the turbine deeper inside. The solution? A gearbox..."
Pratt & Whitney/YouTube
Richard
"Jet engines can be much more efficient and much quieter than they are today. The trick to doing it is as simple as adding a gearbox, but the process of doing so has taken nearly 30 years. But the journey is almost over.
As Bloomberg Business explains in a fantastic little retrospective on the tech's evolution, the new kind of engine—Pratt & Whitney's PurePower Geared Turbofan (GTF)—traces its roots back as far as 1988. At its heart, the innovation is simple. A normal turbofan engine has a fan on the front, for air intake, and a smaller turbine further inside. These two components share the same shaft, but it's an inefficient solution. If both pieces are spinning at optimal speeds, the fan on the front would be going much slower (and therefore would be both more efficient and way quieter) than the turbine deeper inside. The solution? A gearbox..."
Pratt & Whitney/YouTube
Richard