The 6 bladed R391 propeller for the Lockheed Martin Hercules C-130J aircraft incorporates advanced technologies developed by Dowty over the past 60 years and is certificated to FAR35 and JAR-P. It offers the following benefits:

Advanced Swept Blade Design

• optimised ARAD-A aerofoil sections

• excellent take-off and climb performance

• very low noise levels

High Integrity All-Composite Blades

• over 30% lower system weight

• service proven, rugged construction

• unmatched 25 year record of operational safety and reliability

• highly effective erosion protection system

Fail-Safe Electronic Control System

• fully integrated with engine electronic control system

• precise speed selection and synchrophasing accuracy

• counterweighted blades assure safe coarse-seeking operation

• single lever cockpit control

Low Maintenance Costs

• modular configuration

• no mechanical linkages to cockpit

• simple hub construction

• 50% lower parts count