Northrop Grumman Shipbuilding - LPD 22 and 23

 

 

Client:
Northrop Grumman Shipbuilding (N.K.A. Hunnington Ingalls)
Scope:
Fabricating 187 ship modules, approximately 60% of the total ship

The project entailed fabrication, outfitting, painting, shrink wrap and loadout of the units. Signal outfitted the units with pipe, HVAC and electrical. Piping system was composed of carbon steel, titanium, copper-nickel and stainless steel. Units ranged from single-level units weighing up to 8 short tons to multilevel units approximately 45 feet in height and weighing up to 204 short tons. Most units were fabricated under roof and out of the weather elements.
Challenges:
Extremely tight tolerances, as small as 5 millimeters across the entire width of the ship. Material used was very light structure thickness.
Duration:
36 months
Facility:
Orange Yard (Texas) and Pascagoula (Miss.) East Yard
Details:
Large indoor fabrication facilities provided efficient and productive work environment. Implementation of Continuous Flow Manufacturing supported project success. Signal's expert craftsmen performed within the tight dimensional specifications for hull and steel outfitting set forth in US MIL-SPEC Standards.