[Code of Federal Regulations]
[Title 46, Volume 7]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR171.057]

[Page 123-124]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 171--SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS--Table of Contents
 
                        Subpart C--Large Vessels
 
Sec. 171.057  Intact stability requirements for a sailing catamaran.

    (a) A sailing vessel that operates on protected waters must be 
designed to satisfy the following equation:
[GRAPHIC] [TIFF OMITTED] TR10JA96.007

Where--

B=the distance between hull centerlines in meters (feet).
As=the maximum sail area in square meters (square feet).
Hc=the height of the center of effort of the sail area above the deck, 
in meters (feet).
W=the total displacement of the vessel, in kilograms (pounds).
X=4.88 kilograms/square meter (1.0 pounds/square foot).

    (b) A sailing vessel that operates on partially protected or exposed 
waters must be designed to satisfy the following equation:
[GRAPHIC] [TIFF OMITTED] TR10JA96.008

Where--

B=the distance between hull centerlines in meters (feet).

[[Page 124]]

As=the maximum sail area in square meters (square feet).
Hc=the height of the center of effort of the sail area above the deck, 
in meters (feet).
W=the total displacement of the vessel, in kilograms (pounds).
X=7.32 kilograms/square meter (1.5 pounds/square foot).

[CGD 79-023, 48 FR 51017, Nov. 4, 1983, as amended by CGD 83-005, 51 FR 
924, Jan. 9, 1986; CGD 85-080, 61 FR 944, Jan. 10, 1996]