[Code of Federal Regulations]
[Title 46, Volume 1]
[Revised as of Octobery 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR35.20-40]

[Page 473-474]
 
                           TITLE 46--SHIPPING
 
         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
 
PART 35_OPERATIONS--Table of Contents
 
                        Subpart 35.20_Navigation
 
Sec. 35.20-40  Maneuvering characteristics--T/OC.

    For each ocean and coastwise tankship of 1,600 gross tons or over, 
the following apply:
    (a) The following maneuvering information must be prominently 
displayed in the pilothouse on a fact sheet:
    (1) For full and half speed, a turning circle diagram to port and 
starboard that shows the time and the distance of advance and transfer 
required to alter the course 90 degrees with maximum rudder angle and 
constant power settings.
    (2) The time and distance to stop the vessel from full and half 
speed while maintaining approximately the initial heading with minimum 
application of rudder.
    (3) For each vessel with a fixed propeller, a table of shaft 
revolutions per minute for a representative range of speeds.
    (4) For each vessel with a controllable pitch propeller a table of 
control settings for a representative range of speeds.
    (5) For each vessel that is fitted with an auxiliary device to 
assist in maneuvering, such as a bow thruster, a table of vessel speeds 
at which the auxiliary device is effective in maneuvering the vessel.

[[Page 474]]

    (b) The maneuvering information must be provided for the normal load 
and normal ballast condition for:
    (1) Calm weather--wind 10 knots or less, calm sea;
    (2) No current;
    (3) Deep water conditions--water depth twice the vessel's draft or 
greater; and
    (4) Clean hull.
    (c) At the bottom of the fact sheet, the following statement must 
appear:

                                 Warning

The response of the (name of the vessel) may be different from those 
listed above if any of the following conditions, upon which the 
maneuvering information is based, are varied:
    (1) Calm weather--wind 10 knots or less, calm sea;
    (2) No current;
    (3) Water depth twice the vessel's draft or greater;
    (4) Clean hull; and
    (5) Intermediate drafts or unusual trim.

    (d) The information on the fact sheet must be:
    (1) Verified six months after the vessel is placed in service; or
    (2) Modified six months after the vessel is placed into service and 
verified within three months thereafter.
    (e) The information that appears on the fact sheet may be obtained 
from:
    (1) Trial trip observations;
    (2) Model tests;
    (3) Analytical calculations;
    (4) Simulations;
    (5) Information established from another vessel of similar hull 
form, power, rudder and propeller; or
    (6) Any combination of the above.

The accuracy of the information in the fact sheet required is that 
attainable by ordinary shipboard navigation equipment.
    (f) The requirements for information for fact sheets for specialized 
craft such as semi-submersibles, hydrofoils, hovercraft and other 
vessels of unusual design will be specified on a case by case basis.

[CGD 73-78, 40 FR 2689, Jan. 15, 1975]