This study investigates the feasibility and suitability of applying a composite structure to enclose electronic equipment in submarines. the properties of the structure that are investigated in greatest detail are weight and volumetric efficiency. secondary influences considered and quantified are… More

This study investigates the feasibility and suitability of applying a modular composite structure to house and support torpedo-tube launched weapons in submarines. the properties of the structure that are investigated in greatest detail are weight and volumetric efficiency. secondary influences… More

Current submarine combat system architectures reflect a weak linkage from operational requirements to implementation. architectures range from those with large central computers to those with clustered distributed processors. single points of failure, data bottlenecks, and processor conflicts result… More

Tactical performance, reliability, and cost are complimentary factors in system design but there is no one tool to effectively compare attributes in these disparate disciplines. there are computer programs to estimate system performance against the threat, computer models to predict reliability in a… More

Reliable and continuous power to submarine electronics is essentialfor mission execution and for the safe operation of the ship. digital electronics cannot continue operation through even very short power outages cause by bus transfer devices, that have historically been sufficient for analog combat… More

Composite materials offer a wide range of attributed that can improve the performance and reduce the cost of new submarines. composites have not yet been used extensively in submarines because there is little experience in the submarine engineering community on which to base component design.… More

1Reliable and continuous power to submarine electronics is essential for mission execution and for the safe operation of the ship. Digital electronics cannot continue operation through even very short power outages cause by bus transfer devices that have historically been sufficient for analog… More

Detection and measurement of soot in the exhaust of turbine engines is important from a tactical standpoint of aircraft vulnerability. exis ting optical detection methods are subject to error and subjective ana lysis. a novel soot detection method is proposed for development. it relies on the… More

Expendable mine-hunting countermeasures require a propulsion system that is acoustically and magnetically quiet while being light in weight, reliable, and inexpensive. Proposed for development and demonstration is a composite spring energy storage device. Calculations show that a spring weighing… More

Passive detection and classification of missiles, aircraft, and units with internal combustion engines and rocket motors beyond the visual horizon is a capability of substantial tactical significance. Electromagnetic radiation from ions in engines has been identified as a potentially exploitable… More

Proposed for development is an escape trunk cofferdam that is made of a set of rigid (composite sandwich) cylindrical sectors joined by longitudinal sealing joints. The cofferdam is attached to the escape trunk's bubble skirt by an attachment ring whichallows the sections of the cofferdam to be… More