46 CFR 42.20-5 - Freeboard assignment: Type “B” vessels.

View all text of Subpart 42.20 [§ 42.20-3 - § 42.20-75]

§ 42.20-5 - Freeboard assignment: Type “B” vessels.

(a) Each Type “B” vessel is assigned a freeboard from table 42.20-15(b)(1) that is increased or decreased by the provisions of this section.

(b) Each Type “B” vessel that has a hatchway in position 1, must have the freeboard assigned in accordance with paragraph (a) of this section increased by the amount given in table 42.20-5(b) unless the hatch cover complies with:

(1) Section 42.15-25(d); or

(2) Section 42.15-30.

Table 42.20-5(b)—Freeboard Increase Over Tabular Freeboard for Type “B” Vessels With Hatch Covers Not Complying With § 42.15-25(d) or § 42.15-30.

[Metric]

Length of ship (meters)	Freeboard increase 1 (millimeters)	2108	50	109	52	110	55	111	57	112	59	113	62	114	64	115	68	116	70	117	73	118	76	119	80	120	84	121	87	122	91	123	95	124	99	125	103	126	108	127	112	128	116	129	121	130	126	131	131	132	136	133	142	134	147	135	153	136	159	137	164	138	170	139	175	140	181	141	186	142	191	143	196	144	201	145	206	146	210	147	215	148	219	149	224	150	228	151	232	152	236	153	240	154	244	155	247	156	251	157	254	158	258	159	261	160	264	161	267	162	270	163	273	164	275	165	278	166	280	167	283	168	285	169	287	170	290	171	292	172	294	173	297	174	299	175	301	176	304	177	306	178	308	179	311	180	313	181	315	182	318	183	320	184	322	185	325	186	327	187	329	188	332	189	334	190	336	191	339	192	341	193	343	194	346	195	348	196	350	197	353	198	355	199	357	3200	358

1 Freeboards at intermediate lengths of ship shall be obtained by linear interpolation.

2 108 and below.

3 Ships above 200 meters in length are subject to individual determination by the Commandant.

[English]

Length of ship (feet)	Freeboard increase 1 (inches)	2350	2.0	360	2.3	370	2.6	380	2.9	390	3.3	400	3.7	410	4.2	420	4.7	430	5.2	440	5.8	450	6.4	460	7.0	470	7.6	480	8.2	490	8.7	500	9.2	510	9.6	520	10.0	530	10.4	540	10.7	550	11.0	560	11.4	570	11.8	580	12.1	590	12.5	600	12.8	610	13.1	620	13.4	630	13.6	640	13.9	650	14.1	3660	14.3

1 Freeboards at intermediate lengths of ship be obtained by linear interpolation.

2 350 and below.

3 Ships above 660 feet in length are subject to individual determination by the Commandant.

(c) Any Type “B” vessel that is greater than 100 meters (328 feet) in length and any hopper dredge meeting the requirements in subpart C of part 44 of this chapter may have a reduced freeboard from that assigned under table 42.20-15(b)(1) in accordance with paragraph (d) or paragraph (e) of this section if—

(1) The measures provided for the protection of the crew are adequate;

(2) The freeing arrangements are adequate; and

(3) The hatchway covers in positions 1 and 2 comply with the provisions of § 42.15-30 and have adequate strength, special care being given to their sealing and securing arrangements.

(d) The freeboards for a Type “B” vessel which comply with paragraph (c) of this section may be reduced up to 60 percent of the total difference between the freeboards in table 42.20-15(b)(1) and table 42.20-15(a)(1) provided that the vessel meets the flooding standard in § 42.20-7.

(e) The freeboards for a Type “B” vessel which complies with paragraph (c) of this section may be reduced up to the total difference between the freeboard tables referenced in paragraph (d) of this section provided that the vessel meets the flooding standard in § 42.20-8 and the provisions of § 42.15-80 (a), (b) and (d) as if it were a Type “A” vessel.

[CGD 79-153, 48 FR 38647, Aug. 25, 1983, as amended by CGD 76-080, 54 FR 36976, Sept. 6, 1989]