The Trent 772B-60 sits within the Trent 700 family, the first Trent variant to enter service and the engine that established Rolls-Royce’s three-spool architecture in the widebody market. Its 71,100 lbf rating places it squarely in the A330’s thrust requirements, competing with the CF6-80E1 and PW4000 on the same airframe .
Trent 772B-60 Architecture
The primary subject of this technical guide focuses on the Rolls-Royce Trent 772B-60 engine, engineered specifically for Three-Spool, High-Bypass Turbofan applications. Below is an essential digest of this powertrain configuration.
• Trent 700 family variant
• 71,100 lbf takeoff thrust
• Three independent spools
• FADEC-controlled
Trent 772B-60 Certification Data
Three independent spools: LP (single-stage fan, 4-stage turbine), IP (8-stage compressor, single-stage turbine), HP (6-stage compressor, single-stage turbine); takeoff thrust 71,100 lbf; dry weight 6,160 lb .
The three-shaft layout allows each compressor and turbine section to rotate at its own optimal speed, a design choice that Rolls-Royce argues delivers efficiency benefits over two-spool competitors. The 772B-60 variant uses a Full Authority Digital Engine Control (FADEC) system with the EEC2000 controller, managing the engine’s 24 fuel nozzles and single annular combustor. The fan’s 26 wide-chord blades are designed for foreign object damage resistance and aerodynamic efficiency .
| Architecture | Three-shaft turbofan |
|---|---|
| LP Compressor | Single-stage fan (26 blades) |
| IP Compressor | 8 stages |
| HP Compressor | 6 stages |
| Takeoff Thrust | 71,100 lbf (316.3 kN) |
| Max Continuous | 63,560 lbf (282.7 kN) |
| Dry Weight | 6,160 lb |
| Fuel | Jet A / Jet A-1 |
Aircraft Powered by the Trent 772B-60
This engine model is deployed across various operational frameworks. Here is a breakdown of the typical machine or vehicle applications using this unit:
Airbus A330
Pros & Advantages
Three-spool efficiency; FADEC control; wide-chord fan for durability; proven Trent 700 family reliability.
Cons & Disadvantages
Higher mechanical complexity than two-spool designs; maintenance costs reflect three-shaft architecture.
Frequently Asked Questions (FAQs)
Q1: What is the difference between Trent 772B-60 and Trent 772-60?
A1: The 772B-60 is a later build standard with updated EEC software (EEC A9.0 versus A6.2 on earlier variants) and minor configuration differences .
Q2: How many fan blades does the Trent 772B-60 have?
A2: The LP compressor consists of 26 wide-chord fan blades .
Q3: What is the Trent 772B-60’s maximum continuous thrust?
A3: Maximum continuous thrust is 63,560 lbf (282.7 kN) net .
The Trent 772B-60 received its type certificate on 09 May 2001 .