The 6-bladed R414 propeller system for the modernised ShinMaywa US-1A Kai builds on proven integrated electronic controls on the Rolls-Royce AE2100 engine. This is the world's first composite-bladed amphibious aircraft propeller, and offers the following advantages:

Super-Strong, All-Composite Blades

• Resistant to crater impact loads

• Much reduced weight and higher power than original propeller

• Superior erosion resistance

High-Strength, One-Piece Steel Hub

• To complement the water-impact resistance of the blades

• Plated, flexibly sealed and polyurethane painted for corrosion protection

Proven, Fail-Safe, Integrated Electronic Control System

• Mature, control-by-wire system on R-R AE2100 series engine adapted for this application

• Mature propeller hydromechanical components with added sealing and paint system for maritime environment

Improved Maintainability

• Blades replaceable in opposite pairs on-wing

• Modular system with no mechanical linkages

• Reduced parts count

• Improved reliability