# The GE9X is a high-bypass turbofan purpose-built for the Boeing 777X.

*business · news · 2026-04-10 · Simple Flying*

## Key points

- The GE9X engine features a 134-inch composite fan with only 16 blades, reducing weight and drag.
- It achieves a market-leading bypass ratio near 10:1 and an overall pressure ratio around 60:1.
- Advanced ceramic-matrix composites and additive manufacturing reduce cooling needs and engine mass.
- The GE9X delivers about 10% lower fuel burn than the GE90, directly challenging Airbus's A350-1000 economics.
- Despite FAA certification in 2020, GE9X's service entry is delayed until at least 2027 due to Boeing 777-9 schedule.

**Companies:** General Electric, Boeing
**Countries:** United States

[Read the full story on Simple Flying](https://simpleflying.com/monster-jet-engine-airbus-worried-why/)

---

Canonical: https://newsio.io/n/a6e71129-2840-4d22-a58f-e7147b30ba30/the-ge9x-is-a-high-bypass-turbofan-purpose-built-for-the-boeing-777x
Summarized by Newsio from Simple Flying. https://newsio.io/how-it-works