We're about to run tests on the extent to which the hull material blocks the signals.
An air-exhausted zone was generated which acted as a protective cushion between the thin hull material and the pressing water.
Glass-reinforced plastic is also allowed as hull material.
Changing the hull material is not possible, however even if the following are missing the boat would still be considered an FF.
In several of these cases, they exceeded the specs, such as thicker hull materials.
Studies are underway on using exotic hull materials to increase submarine operating depth.
The central hub contained a number of instruments and controls embedded in the bulkhead, which was made out of hull material.
The hole wasn't large but it also wasn't shielded by the ship's hull material.
Her quick glance took in the long dark bar-obviously hull material.
O'Brien brushed crumbs of shaved hull material off his arms.