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EAG 155 Class: Photographs


No design appears to have been produced for the EAG 155 Mariner 3 conversion before it was deleted from the program in November 1956. The following designs for a new-construction replacement for the Mariner 3 conversion suggest what the converted ship might have resembled.

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Combatant with six liquid-fueled Jupiter IRBMs

Sketch by the BUSHIPS Preliminary Design Branch (Code 420) dated 15 October 1956 for a combatant ship with six liquid-fueled Jupiter IRBMs. The 8,500-ton displacement ship would have had dimensions of 440' x 60' x 19.5' and a speed of 25 knots. This was at the low end of a study that included ships up to 31,600 tons and 31 knots with 36 liquid-fueled missiles.

Photo No. None
Source: U.S. Naval History and Heritage Command


A preliminary design of a new-construction auxiliary with six liquid-fueled Jupiter missiles that replaced EAG 155 in November 1956.
Combatant with six solid-fueled Jupiter IRBMs

Sketch by the BUSHIPS Preliminary Design Branch (Code 420) dated 15 October 1956 for a combatant ship with six solid-fueled Jupiter IRBMs. The 9,000-ton displacement ship would have had dimensions of 440' x 60' x 20' and a speed of 25 knots. This was near the low end of a study that included ships up to 31,600 tons and 31 knots with 28 solid-fueled missiles. The proposed solid-fueled Jupiter missile was significantly shorter than the liquid-fueled variant but had a diameter and weight much larger than POLARIS.

Photo No. None
Source: U.S. Naval History and Heritage Command


A preliminary design of a new-construction auxiliary with six solid-fueled Jupiter missiles that replaced EAG 155 in November 1956.
USS Francis Marion (APA 249)

SS Prairie Mariner (MA hull 29) was to have been converted to EAG 155 between 1 April 1958 and 30 March 1959. Instead she was converted between 1959 and 1961 to USS Francis Marion (APA 249). That ship is shown here on 30 September 1976 at Norfolk, Va.

Photo No. Unknown
Source: U.S. Naval History and Heritage Command (UA-164, photo by George R. Schneider)


USS Francis Marion (APA 149) on 30 September 1976.