J. William Middendorf's sister ship John E. Kilmer (artist's rendering)
History
United States
Name	J. William Middendorf
Namesake	J. William Middendorf
Builder	Bath Iron Works
Identification	Hull number: DDG-138
Status	Authorized
General characteristics
Class and type	Arleigh Burke-class destroyer
Displacement	9,217 tons (full load)[1]
Length	510 ft (160 m)[1]
Beam	66 ft (20 m)[1]
Propulsion	4 × General Electric LM2500 gas turbines 100,000 shp (75,000 kW)[1]
Speed	31 knots (57 km/h; 36 mph)[1]
Complement	380 officers and enlisted
Armament	Guns: 1 × 5-inch (127 mm)/62 Mk 45 Mod 4 (lightweight gun) 1 × 20 mm (0.8 in) Phalanx CIWS 2 × 25 mm (0.98 in) Mk 38 machine gun system 4 × 0.50 inches (12.7 mm) caliber guns Missiles: 1 × 32-cell, 1 × 64-cell (96 total cells) Mk 41 vertical launching system (VLS): RIM-66M surface-to-air missile RIM-156 surface-to-air missile RIM-174A standard ERAM RIM-161 anti-ballistic missile RIM-162 ESSM (quad-packed) BGM-109 Tomahawk cruise missile RUM-139 vertical launch ASROC Torpedoes: 2 × Mark 32 triple torpedo tubes: Mark 46 lightweight torpedo Mark 50 lightweight torpedo Mark 54 lightweight torpedo
Armor	Kevlar-type armor with steel hull. Numerous passive survivability measures.
Aircraft carried	2 × MH-60R Seahawk helicopters
Aviation facilities	Double hangar and helipad

USS J. William Middendorf (DDG-138) is a planned Arleigh Burke-class guided missile destroyer of the United States Navy, the 88th overall for the class.^[2] She will honor J. William Middendorf, a former Secretary of the Navy and US Ambassador to the Netherlands. The name was announced 10 June 2022.^[3]