Blue Ridge-class command ship

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USS Mount Whitney
Class overview
NameBlue Ridge Class
Builders
OperatorsUnited States Navy
In commission1970 - Present
Planned3
Completed2
Cancelled1
Active2
General characteristics
Displacement18,874 long tons (19,176.89 metric tons) full load
Length634 ft (193 m)
Beam108 ft (33 m)
Draft26 ft 9 in (8.15 m) full load
PropulsionTwo boilers, one geared turbine, one shaft; 22,000 hp (16,000 kW)
Speed23 kn (26 mph; 43 km/h)
Range13,000 nmi (24,000 km; 15,000 mi) at 16 knots (30 km/h)
Complement720 enlisted, 23 officers
Aircraft carriedAll helicopters except the CH-53 Sea Stallion can be carried

The Blue Ridge class is the first and only class of

amphibious command and control ships to be specifically designed as such from the keel
up.

The Blue Ridge class resulted from almost seven years of planning and construction work. Under the designation SCB-248 (later SCB-400.65), the hull of the Iwo Jima-class amphibious assault ship was used as the basis of the design due to the flight deck's ability to distance antennas to minimize interference between the ships' multiple communications systems and to the deck's ability to act as a ground plane; the LPH island was replaced with a small centralized superstructure.[1]

As designed, the Blue Ridge class was capable of supporting the staff of both the Commander of an Amphibious Task Force and the staff of the Commanding General of the Landing Force. The ships were the most advanced joint amphibious command-and-control centers constructed at the time, due to their advanced computer systems, extensive communications package and modern surveillance and detection systems.[2]

Original specifications

At the time of their commissionings, the ships of the Blue Ridge class had the distinction of carrying the world's most sophisticated electronics suites, thirty percent larger than that of the aircraft carrier USS John F. Kennedy, which had been the most complex. They were fitted with a "main battery" of computers, communications gear, and other electronic facilities to fulfill their mission as command ships. An advanced communications system was also an integral part of the ships' radical new design. Through an automated patch panel and computer controlled switching matrix her crew could use any combination of communication equipment desired.[3]

US Navy long-range communications were heavily reliant on

yagi or log-periodic antenna initially installed on the class and later removed and replaced with a number of satellite communications antennas.

Discone and log-periodic antennas on the Blue Ridge in 1971

Besides small arms, the Blue Ridge class was initially armed with two twin Mark 33

cannons.

The Blue Ridge class consists of two ships. Originally six were requested, three were planned, and only two were built.[4]

Ships in class

Name Hull Number Builder Ordered Laid Down Launched Commissioned Status
Blue Ridge LCC-19 Philadelphia Naval Shipyard 31 December 1964 27 February 1967 4 January 1969 14 November 1970 Active in service
Mount Whitney LCC-20
Newport News Shipbuilding & Drydock Company
10 August 1966 8 January 1969 8 January 1970 16 January 1971 Active in service

References