Rolls-Royce and the environment

Noise reduction

Rolls-Royce has been researching low-noise aero-engine technology for the past 40 years. Significant progress has been made in reducing aircraft noise and we are maintaining good progress towards achieving the ACARE goal.

With partners, we are addressing both the direct noise generation from engines and the perceived noise impact on the ground.

Future engine concepts are in line with the ACARE goals. Implementing these designs whilst achieving step-change reductions in CO2 and NOx represents a substantial challenge.

Progress towards reaching the ACARE goals

Achieving the ACARE targets

• Fuel burn (CO2) reduction
• NOx reduction
• Noise reduction

Reductions in emissions from aviation can be gained from three main sources:

Target: Airframe plus Engine plus Operations can deliver 50 per cent reduction in CO2 emissions per passenger kilometre.