Section J-12 HSC-L Design Placemat.pdf
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- 70Z02326R93280004
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This document is a technical specification sheet for the United States Coast Guard Homeland Security Cutter Light (HSC-L), a specialized maritime vessel designed for coastal operations. The cutter measures 69.6 feet in overall length with a 21.5-foot beam and a design draft of 6.0 feet, with air draft capabilities ranging from 17.8 feet folded to 25.6 feet unfolded. The vessel has a lightship weight of 81.5 long tons and full load displacement of 116.7 long tons, with margins totaling 13.3 long tons. The HSC-L is powered by two CAT C18 B engines rated at 500 kW each, producing 1,340 total horsepower, and equipped with two 45-inch fixed pitch propellers and ZF W3350 reduction gears.
The vessel accommodates a crew of six personnel with arrangements including one crew mess (6 persons), one head with shower, one deck head, and one ATON workshop. Performance characteristics include icebreaking capability at 3 knots through 12 inches of ice at 90% MCR, a cruise speed of 10.0 knots, a range of 720 nautical miles at 12 knots, and 3-day endurance. The HSC-L is equipped with buoy tending capability including a 4,500-pound SWL buoy crane for handling buoys up to 5 by 11 feet, cross-deck winches with 2,000-pound SWL each, and an ATON deck load capacity of 16,340 pounds. Additional systems include two 65 kW CAT C4.4 generators, watermist firefighting, keel coolers for machinery cooling, and ABS First Year Ice Class (IC) hull structure certification. Tankage includes 2,700 gallons of fuel oil, 500 gallons of potable water, and 500 gallons of sewage capacity.
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Text version
DIMENSIONS WEIGHTS
Length, Overall 69.6 ft SWBS 100 45.0 LT 7.0 ft Beam, Overall 21.5 ft SWBS 200 7.6 LT 4.2 ft Depth, To Focsle Deck 11.0 ft SWBS 300 5.2 LT 6.0 ft Depth, To Main Deck 9.0 ft SWBS 400 1.8 LT 16.8 ft Design Draft (DWL) 6.0 ft SWBS 500 12.3 LT 9.4 ft Full Load EOSL Draft 6.3 ft SWBS 600 9.6 LT 9.0 ft Air Draft - Folded 17.8 ft Lightship (LS) 81.5 LT 7.5 ft Air Draft - Unfolded 25.6 ft
Margins PERFORMANCE Total Margin 13.3 LT 12.1 ft Icebreaking @ 3 kts 12 in LS w/ Margin 91.6 LT 8.1 ft Ice Breaking % MCR 90% Icebreaking Load Condition Cruise Speed 10.0 kts Icebreaking Loads 14.8 LT Range @ 12 knots 720 NM Full Load (BOSL) 109.7 LT 7.5 ft Endurance 3 days SLA (7.5% LS) 7.0 LT 0.5 ft
Full Load (EOSL) 116.7 LT 8.0 ft
ARRANGEMENTS PROPULSION SYSTEMS BUOY TENDING
Crew Mess 6 persons Propulsion Engine 2 x CAT C18 B Rating (500 kW) Buoy Crane 4,500 lb SWL WC w/ Shower 1 Propeller 2 x 45 in, 4 Blade, Fixed Pitch Largest Buoy 5 x 11 LR Aids To Navigation Load Condition Deck Head 1 Reduction Gear 2 x ZF W3350 ATON Deck Load 16,340 lbs ATON Loads 25.7 LT ATON Workshop 1 Total BHP 1,340 HP Cross-deck Winch 2 x 2,000 lb SWL Full Load (BOSL) 120.5 LT 7.7 ft
SLA (7.5% LS) 7.0 LT 0.5 ft ACCOMMODATIONS ELECTRIC SYSTEMS MATERIAL Full Load (EOSL) 127.5 LT 8.2 ft 4 person 1 Generator 2 x CAT C4.4 (65 kW) Hull Steel 2 person 1 Total ekW 130 ekW Superstructure Steel TANKAGE Total 6 Fuel Oil gal
AUXILIARY SYSTEMS Potable Water gal TOWING Firefighting Watermist DESIGN STANDARD Sewage gal 1 x 36,500 lb RBS Tow Hawser w/ Bridle Machinery Cooling Keel Coolers ABS First Year Ice Class IC (Hull Structure)
Auxiliary Cooling Fresh Water Loop
Distribution Statement A. Approved for public release: distribution is unlimited.
UNITED STATES COAST GUARD
HOMELAND SECURITY CUTTER LIGHT (HSC-L)
US WEIGHT VCG
6/11/2026
2,700
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