ing a successful model costs less than reengineering or developing some- thing new, but also because it works. “We want Aegis Ashore to be as
much like DDG-113 as possible,” says Navy Capt. Eric Ver Hage, Aegis Ashore program manager for the Mis- sile Defense Agency. “All the inter- faces are the same, to the maximum extent possible. The cable lengths in the deckhouse are maintained, even though distances between cabinets may be much closer. You don’t tech- nically need to have a mast, but com- munications and illuminator antenna height and separation on the masts are the same as on the ship to have the same impedance and the frequency and how they interact with each other. We know that it works. It’s proven.” The missile launchers are farther
away from the radar than they are on a ship (measured in hundreds of me- ters rather than tens of feet), and De- veselu is at a higher elevation than sea level. Although Aegis Ashore doesn’t get underway, it still has directional gyros for ship’s heading information. There are challenges to combining
a hybrid ship and building. “It’s made to be like a ship, but
without the bulkheads. The most criti- cal level is the 03 level, where the radar is located. The alignment of the waveguides between the equipment and radars is critical in that space,” says Brendan Scanlon, Aegis Ashore program director, Lockheed Martin. “We needed to adapt our equipment to be modular. We handled critical toler- ances through the use of our modular design, including interfaces to the building. It’s hard to construct a build- ing to those tolerances.” The equipment, missiles, computer
programs, and sensors are virtually identical; less than one percent of the computer code had to be changed. But, according to Jim Sheridan, Lockheed Martin’s manager for U.S. Navy Aegis Programs, installing the equipment is very different than the way it would be
PHOTOS: ABOVE, PETTY OFFICER 2ND CLASS EVA-MARIE RAMSARAN, USN; TOP, JOHN RICE/U.S. ARMY CORPS OF ENGINEERS
A program man- ager leads a tour of the Command Information Center at Naval Support Fa- cility Deveselu, Ro- mania. (top) Under construction in January, the Aegis Ashore ballistic- missile defense site officially became operational in May.
SEPTEMBER 2016 MILITARY OFFICER 53
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