SAFETY OF LIFE AT SEA 



C25 



Where the factor F is less than -40 and it is shown to the satisfaction of 

 the Administration to be impracticable to comply with the factor F in a 

 machinery compartment of the ship, the subdivision of such compartment may 

 be governed by an increased factor, which, however, shall not exceed -40. 



(ii) The subdivision abaft the forepeak of ships less than 430 feet (or 131 

 metres) but not less than 260 feet (or 79 metres) in length having a criterion 

 numeral equal to S, where — 



^ 9,382- 20L ,, . , 3,574-25L 



5>= :yz (L m feet) = — — pr (L in metres) 



shall be governed by the factor unity; of those having a criterion numeral of 

 123 or more by the factor B given by the formula (II); of those having a 

 criterion numeral between S and 123 by the factor F obtained by linear 

 interpolation between unity and the factor B using the formula : — 



n-Bxc.-s)^ 



123-S ^ 



(iii) The subdivision abaft the forepeak of ships less than 430 feel (or 

 131 metres) but not less than 260 feet (or 79 metres) in length and having a 

 criterion numeral less than S, and of all ships less than 260 feet (or 79 metres) 

 in length shall be governed by the factor unity, unless, in either case, it is 

 shown to the satisfaction of the Administration to be impracticable to comply 

 with this factor in" any part of the ship, in which case the Administration 

 may allow such relaxation as may appear to be justified, having regard to all 

 the circumstances. 



(iv) The provisions of sub-paragraph (iii) of this paragraph shall apply 

 also to ships of whatever length, which are to be certified to carry a number 

 of passengers exceeding 12 but not exceeding — 



L^ (in feet) L' (in metres) 

 yOQQ = ttq or 50. whichever is the less. 



(e) Special Standards of Subdivision for Ships which are permitted under 

 paragraph (c) of Regulation 27 of Chapter III to carry a number of persons 

 on board in excess of the lifeboat capacity provided and are recjuired under 

 paragraph {d) of Regulation 1 of this Chapter to comply with special 

 provisions. 



(i) (1) In the case of ships primarily engaged in the carriage of passengers, 

 the subdivision abaft the forepeak shall be governed by a factor of -50 or 

 by the factor determined according to paragraphs (c) and {d) of this Regulation, 

 if less than -50. 



(2) In the case of such ships less than 300 feet (or 91-5 metres) in 

 length, if the Administration is satisfied that compliance wit'i such factor 

 would be impracticable in a compartment, it may allow the le igth of that 



Ch. 2 



