aviation propulsion

Cleared Direct Oct 7, 2026

The CFM RISE Program, the Counter-Rotating Open Fan, and the Thermodynamic Bet That Could Redefine Every Narrowbody Flying in the Twenty Thirties

CFM's RISE program is developing a counter-rotating open fan engine targeting 20%+ fuel burn improvement over current LEAP engines, with entry into service targeted for the mid-2030s.

Vector

Cleared Direct Apr 26, 2026

The GE Aerospace Catalyst turboprop and the first clean-sheet engine design general aviation has seen in half a century

The GE Aerospace Catalyst is the first clean-sheet turboprop engine for general aviation in 50 years, promising 16% better fuel efficiency.

Vector

Cleared Direct Apr 23, 2026

The CFM RISE open-fan engine and the twenty percent fuel burn revolution coming to airliners by twenty thirty-five

CFM International's RISE open-fan engine targets a 20% fuel burn reduction over current LEAP engines, with entry into service around 2035.

Vector