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Composite material ship yields a median RCS of approximately 5dBsm
Steel ship yields a median
RCS of approximately 25dBsm
RCS as a Function of
Material Selection
Composite vs. PEC (Steel)
This slide show RCS as a function of material selection and target angle at 0.3 Gigahertz.

We compared the RCS for an all steel ship with that of a ship made of composite material.

The side-by-side results show a 20dBsm reduction in the median RCS, if we chose to build a ship of composite material rather than a totally steel ship.

However, due to cost and structural constraints, we decided to use a
steel hull – composite superstructure design for the Sea TENTACLE platform.

Further RCS analysis would have proved beneficial in optimizing this design tradeoff.