Why can’t the Boeing 747-8 be powered by any other engine type?

The final jumbo jet is exclusively powered by GEnx-2B engines, and was not built for Rolls-Royce or Pratt & Whitney turbofans ...
Jalopnik

Bucket-Type Jet Engine Reverse Thrusters Look Like A Retro Sci-Fi Design, And They're Going Out Of Fashion

Jet engines are relatively simple in their basic design, but advancements in gas turbine engine technology have mostly done away with the cool-looking bucket-type reverse thrust systems. These thrust ...
Aviation Week

Despite Few New Aircraft Types, Business Aviation Propulsion Booms

Almost identical to the Pratt & Whitney PW814GA version powering Gulfstream’s G500/600, the PW812D variant is also due to enter service later this year on Dassault’s new Falcon 6X. Credit: Pratt & ...