US Navy's Nimitz-class aircraft carrier USS Abraham Lincoln has reached a milestone in its refuelling and complex overhaul (RCOH), after its power cylinders were lowered into catapult one on the flight deck.
USS Abraham Lincoln is currently undergoing a RCOH in Huntington Ingalls Industries' Newport News Shipbuilding (NNS), in Virginia.
Aviation launch recovery equipment boatswain, chief warrant officer Casey Nalley said: "Lowering the launching cylinders is a huge milestone in bringing the catapult back on line.
"All four catapults were completely overhauled, including the replacement of 112t of trough structure and the peening [reshaping] of each individual cylinder."
Nalley stated that there are two rows of launching engine cylinders aligned in parallel in the catapult trough, including the launching engine pistons.
USS Abraham Lincoln is the fifth ship of the Nimitz-class to undergo an RCOH.
The ongoing RCOH will make the aircraft carrier one of the most modern and technologically advanced Nimitz-class aircraft carriers in the fleet.
USS Abraham Lincoln commanding officer Captain Ron Ravelo said: "This is the first in many steps to bringing the flight deck back to life.
"What air department has accomplished is definitely a highlight of this entire project. Working with NNS we have done a tremendous amount of work up [on the flight deck] and achieved a tremendous amount of success in maintaining our timeline."
In May, NNS installed the covers for catapult one on the flight deck.
The catapult covers bridge the trough in order to deliver a smooth, continuous flight deck, and also offers support for the shuttle that launches aircraft.
In another development, the shipbuilder reinstalled the AN/SPS-48 primary air search radar antenna on the aircraft carrier.
Image: USS Abraham Lincoln is the fifth ship of the Nimitz-class to undergo an RCOH. Photo: courtesy of US Navy photo by photographer's mate 3rd Class Kittie VandenBosch.