Airspeed Pty Ltd has considerable prior experience with the application of composite materials for submarines. This has included pressure vessels designed to AS/NZS1200 and AS1210 utilising filament-wound composite materials to provide special-purpose stowage vessels.
LIGHTWEIGHT REPLACEMENT STRUCTURE
Airspeed has designed and built lightweight replacement structures for submarines using modern, lightweight, resin-infused composites to reduce topside weight and improve transverse stability. One project replaced a steel casing with a modern composite structure weighing just 38% of the original structure, allowing a significant weight to be returned to fixed ballast.
RESEARCH AND DEVELOPMENT
Airspeed engineers have prepared a conceptual design of a fin for a conventional submarine that implements an increased uptake of composite materials. A composite fin was found to be capable of withstanding the same design loads as a steel fin, employed a higher number of modular masts and still offered a weight saving of numerous tonnes, offering a significant opportunity for improvement in the transverse stability of the submarine.
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