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A guide to the Instructions for Operation and Maintenance of Main Propelling Machinery of C-3 Type Vessels, after 1943
HDC1659 (SAFR 23815)
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Table of contents
Title: Instructions for Operation and Maintenance of Main Propelling Machinery of C-3 Type Vessels
Date: after 1943
Identifier/Call Number: HDC1659 (SAFR 23815)
Designer:
United States. Maritime Commission
Physical Description:
1 folder
Repository:
San Francisco Maritime National Historical Park, Historic Documents Department
Building E, Fort Mason
San Francisco, CA 94123
Abstract: The Instructions for Operation and Maintenance of Main Propelling Machinery of C-3 type vessels (SAFR-23815, HDC 1659) consists
of one unbound manual divided into 18 tabbed headings.
Physical Location: San Francisco Maritime NHP, Historic Documents Department
Language(s):
In English.
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[Item description], [Location within collection organization identified by Collection Number/Series Number/File Unit Number/Item
Number], HDC1659 (SAFR 23815), Instructions for Operation and Maintenance of Main Propelling Machinery of C-3 Type Vessels,
San Francisco Maritime National Historical Park
SAFR-00072
Donated by a San Francisco Maritime National Historical Park volunteer.
Historical or Biographical Note
The Type C3 was a series of general purpose cargo ships designed by the United States Maritime Commision and were built between
1939 and 1947.
The Type C3 ship was the third type of cargo ships designed by the United States Maritime Commission (MARCOM) in the late
1930's. The primary design of the C3 was as a multipurpose ship, not created specifically for any particular service or trade
route. At 492 ft long and 69.5 feet wide and with a 28.5 foot draft, 7,800 gross tons and 12,000 deadweight tons, with 5 independent
cargo holds, its main propulsion turbine developed 8,500 horsepower with a top speed of 16.5 knots. A total of 465 of these
general purpose cargo ships were built between 1939 and 1947, and were used by the following commercial maritime companies:
American Export Lines; Newport News Shipbuilding & Drydock; Seas Shipping; American South African Line; United States Maritime
Service; Four Aces; American President Lines; and Moore-McCormack Lines. In addition to the C3's success as a platform for
commercial applications, many C3s were converted to military uses during World War II, particularly as escort aircraft carriers
and as
tenders for destroyers, submarines and seaplanes. As it had done with the Type C2 ships, MARCOM distributed operating and
maintenance manuals for the crew's use.
The Instructions for Operation and Maintenance of Main Propelling Machinery of C-3 type vessels (SAFR-23815, HDC 1659) consists
of one unbound manual divided into 18 tabbed headings.
The manual is divided into tabbed headings are as follows: (1) "Instructions for operation and maintenance of main propelling
machinery of C3 type vessels" consisting of title page, table of contents, and instructions; (2) Bridge gauges diagram; (3)
Jacking gear; (4) Lube oil system; (5) Steam seal regulator; (6) Air ejector; (7) Diagram of feed drains, vents, HP drains;
(8) Steam system; (9) Heat balance diagrams; (10) Circulating water system; (11) Turbine governors; (12) C E Boilers; (13)
Feed water treatment; (14) EyeHye and bicolor water gauges; (15) Feed water regulators; (16) Hagan Combustion control; (17)
Bailey combustion control (includes two Westinghouse manuals ca. 1940s); and (18) Degaussing. The manual also contains handwritten
notes and diagrams throughout.
1 foldered item (multiple folded plans and pages in three-ring binder format). Total of 159 pages, including 9 folded plans
and two small published Westinghouse manuals.
Subjects and Indexing Terms
Marine engines
United States. Maritime Commission
Mechanical engineering
Marine engineers