Review and Update of U.S. Coast Guard Vessel Stability Regulations and Guidance (2019) / Chapter Skim
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Pages 131-144
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From page 131... ...
Appendix D Results of Lightship Weight Sensitivity Analysis for Selected Small Passenger Vessels 131
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From page 132... ...
132 USCG VESSEL STABILITY REGULATIONS AND GUIDANCE 65 ft/179-Passengers Tour Boat FIGURE D-1 Subject vessel for hypothetical sensitivity study: 65 ft/179-passengers Subchapter T small passenger vessel.
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From page 133... ...
APPENDIX D 133 TABLE D-1a 65 ft/179-Passengers Tour Boat -- Vessel Particulars Vessel type: Aluminum, flush deck, single-chine hull, main deck cabin; open upper deck LBP (ft)
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From page 134... ...
134 USCG VESSEL STABILITY REGULATIONS AND GUIDANCE TABLE D-1b Summary Results of the Impact of Lightship Weight Growth on Intact and Damaged Stability on 65 ft/179-Passengers Subchapter T Small Passenger Vessel LOAD CONDITION Cond II Depart Cond II Depart Cond II Depart Cond III Return Cond III Return Cond III Return Intact Requirement As certified +2% of LS +3% of LS As certified +2% of LS +3% of LS 46 CFR § 171.050–Passenger heel GM > 3.50–4.00 FT 7.59 7.46 7.42 7.93 7.81 7.70 46 CFR § 170.170 (a) –Weather criterion GM > 4.20–4.80 FT 7.59 7.46 7.42 7.93 7.81 7.70 46 CFR § 170.173(e)
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From page 135... ...
APPENDIX D 135 TABLE D-1b Summary Results of the Impact of Lightship Weight Growth on Intact and Damaged Stability on 65 ft/179-Passengers Subchapter T Small Passenger Vessel LOAD CONDITION Cond II Depart Cond II Depart Cond II Depart Cond III Return Cond III Return Cond III Return Intact Requirement As certified +2% of LS +3% of LS As certified +2% of LS +3% of LS 46 CFR § 171.050–Passenger heel GM > 3.50–4.00 FT 7.59 7.46 7.42 7.93 7.81 7.70 46 CFR § 170.170 (a) –Weather criterion GM > 4.20–4.80 FT 7.59 7.46 7.42 7.93 7.81 7.70 46 CFR § 170.173(e)
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From page 136... ...
136 USCG VESSEL STABILITY REGULATIONS AND GUIDANCE 90 ft/340-Passengers Excursion Vessel FIGURE D-2 Subject vessel for hypothetical sensitivity study: 90 ft/340-passengers Subchapter K excursion/dinner boat vessel.
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From page 137... ...
APPENDIX D 137 TABLE D-2a 90 ft/340-Passengers Excursion Vessel -- Vessel Particulars Vessel type: Excursion. Steel, flush deck, single-chine hull, main deck cabin; open upper deck LBP (ft)
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From page 138... ...
138 USCG VESSEL STABILITY REGULATIONS AND GUIDANCE TABLE D-2b Summary Results of the Impact of Lightship Weight Growth on Intact and Damaged Stability on 90 ft/340-Passengers Subchapter K excursion/dinner boat vessel LOAD CONDITION FL Depart FL Depart FL Depart FL Depart 90% Burned Out 90% Burned Out 90% Burned Out Intact Requirement As certified +2% of LS +3% of LS +6% of LS As certified +3% of LS +6% of LS 46 CFR § 171.050–Passenger heel GM > 5.35–5.75 ft 11.43 11.40 11.27 11.13 11.42 11.26 11.12 46 CFR § 170.170 (a) –Weather criterion GM > 5.50–5.70 ft 11.43 11.40 11.27 11.13 11.42 11.26 11.12 46 CFR § 170.173(e)
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From page 139... ...
APPENDIX D 139 TABLE D-2b Summary Results of the Impact of Lightship Weight Growth on Intact and Damaged Stability on 90 ft/340-Passengers Subchapter K excursion/dinner boat vessel LOAD CONDITION FL Depart FL Depart FL Depart FL Depart 90% Burned Out 90% Burned Out 90% Burned Out Intact Requirement As certified +2% of LS +3% of LS +6% of LS As certified +3% of LS +6% of LS 46 CFR § 171.050–Passenger heel GM > 5.35–5.75 ft 11.43 11.40 11.27 11.13 11.42 11.26 11.12 46 CFR § 170.170 (a) –Weather criterion GM > 5.50–5.70 ft 11.43 11.40 11.27 11.13 11.42 11.26 11.12 46 CFR § 170.173(e)
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From page 140... ...
140 USCG VESSEL STABILITY REGULATIONS AND GUIDANCE 120-ft Vehicle Ferry Barge FIGURE D-3 Subject vessel for hypothetical sensitivity study: Passenger and vehicle ferry barge; Subchapter T; 149 passengers/24 autos/light trucks or 4 semitrailers.
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From page 141... ...
APPENDIX D 141 TABLE D-3a 120-ft Vehicle Ferry Barge -- Vessel Particulars Vessel type: Passenger/vehicle ferry barge; Subchapter T; 149 passengers/24 autos/light trucks or 4 semitrailers LBP (ft)
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From page 142... ...
142 USCG VESSEL STABILITY REGULATIONS AND GUIDANCE TABLE D-3b Summary Results of the Impact of Lightship Weight Growth on Intact and Damaged Stability on Passenger/Vehicle Ferry Barge; Subchapter T; 149 Passengers/24 Autos/Light Trucks or 4 Semi-Trailers LOAD CONDITION MAXIMUM DECK LOAD -- four 80,000 lb GVW trucks Intact Stability Criteria As certified +3% of LS +5% of LS +10% of LS 46 CFR § 171.050–Passenger heel GM = [(W/Δ)
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From page 143... ...
APPENDIX D 143 TABLE D-3b Summary Results of the Impact of Lightship Weight Growth on Intact and Damaged Stability on Passenger/Vehicle Ferry Barge; Subchapter T; 149 Passengers/24 Autos/Light Trucks or 4 Semi-Trailers LOAD CONDITION MAXIMUM DECK LOAD -- four 80,000 lb GVW trucks Intact Stability Criteria As certified +3% of LS +5% of LS +10% of LS 46 CFR § 171.050–Passenger heel GM = [(W/Δ)
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