In developing a world leading propulsor design for
the Astute class, Rolls-Royce used considerable technical
pull through from its marine and gas turbine technology
to develop the structural design, ILS and safety support.

Artist's impression of the new Astute Class which will
incorporate the Rolls-Royce designed propulsor. Image
courtesy of BAE Systems.
Designed to meet stringent weight and performance targets,
Rolls-Royce concentrated on optimising the quality of
all components, particularly the Nickel Aluminium Bronze
castings. A completely new composite duct virtually
eliminates corrosion.
Features and benefits
- Innovative and lightweight design
- Excellent corrosion resistance
- Fully composite duct for minimum signature
- Shock compliant
- Low maintenance
The resultant design is very strong, meeting all the
shock requirements whilst also being considerably lighter
than previous propulsors and is expected to last the
lifetime of the submarine.
| Typical applications |
| UK Astute Class |
|