DLGN-67 Chase Class
usnc-chasesmall.jpg
(Note: drawing contains some parts and lower hull details taken from Shipbucket.com)

Ship Characteristics

Dimensions Length 610 ft
Beam 65 ft
Draft 32.5 ft
Displacement (Standard) 10,850 tons
Displacement (Full Load) 11,900 tons
Performance Speed (max) 33 knots
Armament Guns 1 5 inch L54
Medium-range SAM 60 Standard SM-1MR
ASW 20 ASROC
Torpedoes 6 14 inch.
Aircraft 2 rotodynes

Background

The Chase class were essentially the Jackson class as originally designed with the new version of the AEGIS system but lacking the group command capability of the Jackson class. The original plan was to build four ships of this class per year but their construction coincided with the effort to re-equip SAC with the new B-70 bomber. As a result construction was cut, first to three per year and then to two. This was followed by the Carter presidency that saw the construction rate drop to one per year and the construction time was extended due to low funding. This exacerbated the severe shortage of escorts for the nuclear-powered carriers. By 1983 there were 48 DLGNs in service as against a requirement for 60 (with an equal shortfall in the number of CGNs, there being 24 in service as opposed to a requirement for 30. The cruiser requirement was made up by using Jackson class DLGNs in their place but this further cut the number of DLGNs available to 42. With a deficiency of 18 DLGNs and more carriers requiring escorts due to commission, the screening problem in the late 1970s and early 1980s was severe. Even the deployment of Leahy class DLGs with the nuclear-powered groups was unable to fill the gaps.

The Chase class introduced the new Standard missile. This was available in three versions, Standard SM1ER (Extended Range) replaced Talos. This had a range of 250 nautical miles and a maximum operational engagement altitude of 200,000 feet. It also had a reasonable anti-missile capability. Standard SM1MR (Medium Range) repleaced Terrier. This had a range of 100 nautical miles and a maximum operational engagement altitude of 150,000 feet but did not have an anti-missile capability. Finally, Standard SM1SR (Short Range) raplaced Tartar. This had a range of 50 nautical miles and a maximum operational engagement range of 80,000 feet. Standard quickly replaced the old 3-T family with the older DLGNs being modified to carry Standard SM1MR. Later, when the Standard SM2 missile replaced the SM1, the ships were again refitted to handle this missile.

Class Members

Number Name Ordered Laid Down Launched Commissioned Fate
DLGN-67 Chase 1971 1971 1974 1976 In active service as of 2009
DLGN-68 Taylor 1971 1971 1974 1976 In active service as of 2009
DLGN-69 Leigh 1971 1971 1974 1976 In active service as of 2009
DLGN-70 McNamee 1972 1972 1975 1977 In active service as of 2009
DLGN-71 Sellers 1972 1972 1975 1977 In active service as of 2009
DLGN-72 Upham 1972 1972 1975 1977 In active service as of 2009
DLGN-73 Brumby 1973 1973 1976 1977 In active service as of 2009
DLGN-74 Laning 1973 1973 1976 1977 In active service as of 2009
DLGN-75 Murfin 1974 1974 1977 1978 In active service as of 2009
DLGN-76 Hepburn 1974 1974 1977 1978 In active service as of 2009
DLGN-77 Bloch 1975 1975 1978 1980 In active service as of 2009
DLGN-78 Kalbfus 1975 1975 1978 1980 In active service as of 2009
DLGN-79 Richardson 1976 1976 1980 1982 In active service as of 2009
DLGN-80 Hart 1977 1977 1981 1982 In active service as of 2009
DLGN-81 Stark 1978 1978 1982 1983 In active service as of 2009
DLGN-82 Snyder 1979 1979 1982 1983 In active service as of 2009
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