It’s an axiom in aviation that like old soldiers, good business aircraft never die — they just get reengined and keep right on flying. It’s the not-so-good ones that fade away. Putting new engines on old but productive (and often, beloved) airframes has been the mainstay of the modifications business ever since the former Garrett Turbine Engine Co. (now Honeywell Engines) removed the Lockheed JetStar’s original Pratt & Whitney JT12 turbojets and screwed four of the then-new TFE731-3 ...


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