30-tonne pro­pel­lers on air­craft car­rier Ger­ald R. Ford

SP's MAI - - MILITARY UPDATES -

Hunt­ing­ton In­galls In­dus­tries (HII) an­nounced that the nu­cle­ar­pow­ered air­craft car­rier Ger­ald R. Ford (CVN 78) has put on sig­nif­i­cant weight in the dry dock at its New­port News Ship­build­ing divi­sion with the in­stal­la­tion of four 30-tonne bronze pro­pel­lers. At 21 feet in di­am­e­ter, each pro­peller spins to push the air­craft car­rier through the wa­ter.

“In­stal­la­tion of the pro­pel­lers cul­mi­nates more than 10 months of fo­cused work by nu­mer­ous trades in sup­port of in­stalling the un­der­wa­ter shaft­ing,” said Rolf Bartschi, NNS’ Vice Pres­i­dent, CVN 78 car­rier con­struc­tion. “The con­fig­u­ra­tion of the blades, the weight of the pro­pel­lers and the ex­tremely tight tol­er­ances re­quired make this a chal­leng­ing in­stal­la­tion. I com­mend the rig­ging and ma­chin­ery in­stal­la­tion me­chan­ics for a job well done.”

Ger­ald R. Ford’s pri­mary hull struc­ture reached 100 per cent struc­tural com­ple­tion in May, bring­ing more than three years of struc­tural erec­tion work to a close. Work con­tin­ues on the ship, in­clud­ing the pip­ing and electrical sys­tems and the hab­it­abil­ity ar­eas such as the gal­ley and mess spa­ces. The ship’s chris­ten­ing is sched­uled for Novem­ber 9.

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