- 2021 -
2021 INACE 120′ Explorer
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Inace Yachts 120' Aft house Explorer Yacht
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A touch more style, the next generation of Expedition yachts, the superb 120' aft house Explorer yacht by Luiz Debasto design has the same impressive sea keeping qualities that Inace Yachts are famous for. There is a large master plus 4 ensuite guest cabins and a great skylounge and flybridge There is tons of room for toys and a large tender. This expedition yacht has a 6000 NM cruising range to take you anywhere in the world you can imagine. It is equiped with all of the grear needed for extended cruising and has the room to carry the supplies needed.
Dimensions and Tolerances
Length Overall 36.61
meter 120.OO feet
Length Waterline 33.80meters 110.90 feet
Beam, Maximum 7.90meter 26.00 feet
Draft 2.40meter 8feet
Displacement Approximate Full load 255.0MT
Light load 180.0L tons
Fuel Oil Capacity, Approximate 62.000liters 16,358 US gal
Fresh Water Capacity, Approximate 8.820liter 2,330 US gal
Grey Water Capacity, Approximate 1,580liter 417 US gal
Black Water Capacity, Approximate 2,300liter 607 US gal
Main Engines (2) x C18 Caterpillar "B" rated: 600 BHP @ 1800 rpm
Speed @ 90% max rpm -Cruise 11 knots
Speed-Max 13 knots
Major Equipment List and systems
Two (2) CATERPILLAR engines model C-18, B-rated - 600 BHP @ 1,800 RPM, 24V elec. start, lubricating oil filters, dry exhaust manifolds, 24V alarm system, mechanical instrument panel. Main engines are to be painted white
Two (2) TWIN DISK Mod 5114 reduction gears or similar, 3.50:1 ratio, oil cooler, engine mounted. The gears to have power take off system with electric clutch to feed the Bow Thruster, windless and crane
Two (2) CATERPILLAR, KILO PAK OR SIMILAR 50 KW @ 1800 rpm, 400/230 V, Three phase, 50 Hz with double mount system, fiberglass sound shields and gas-water separators
One pair, one (1) R/H and one (1) L/H, Bronze, of 5-blade
Engine exhaust will be of the wet type, manufactured by CENTEKor similar with exhaust lines looped up from the engine and water injected at a high point on the downward side of the piping before the muffler.
ZF MATHERS, KOBELT OR SIMILAR controls with console mounted control heads installed in the Wheelhouse, Fly bridge and at the two wing stations.
KOBELT or similar and is to have four stations (wheelhouse, fly-bridge and two wing stations). This is to include twin steering pumps and twin ABS approved rams. The pump in the wheelhouse shall be a manual pump and acts as a back up to the system.
Bow Thruster shall be a 20” AMERICAN BOW THRUSTER - 75 HP and it is to be driven of the main engine gears. Per manufacture’s design the system supplies 75 hp when the main engines are at idol.
Quantum marine or Trac 2 fin system
The system designer/engineer and equipment supplier shall be Quantum Marni or TRAC.
The 2-fin stabilizer system, bow thruster, crane and windlasses shall share the same hydraulic power source. The hydraulic pumps are to be driven from the PTO’s installed in the Transmission Gear. This hydraulic power system has to be designed to deliver full power to the vessel's bow thruster and windlasses at main engine idle speed. The system shall have an integrated common bow manifold to supply proper pressure and flow to the bow Thruster and windlasses.
Windlass and ground tackle shall have two Maxwell or Muir 6000 Lbs windlasses with 450’ of 5/8” High tensile chain on each side ( port and starboard) and 240 Kgs Navy type anchor to be stored in two polished stainless steel anchor pocket located at port and starboard bow sides
2000 kgs Opacmare or Similar Hydraulic boom crane with independent elecro-hydraulic back up system
Opacmare or similar model 5335/40 Hydraulic
AQUAIR model A18-3-1 VHD consisting of three compressors with a 18 ton capacity Aqua Air Alpha Series or equivalent. Chillers shall be installed in the engine room to provide cooling for the yacht. Seawater cooling pump shall be two self-priming pumps – one being a stand-by pump - and thermostats for the fan coil units shall be Tempwise-2000. Fan coil units shall be used to provide for the cooling of designated areas and shall be furnished and installed as per estimated BTU recommended by manufacturer
Fuel oil System:
Fuel oil tanks shall be integral with the hull, as detailed in section 110-00. All tanks are to be fitted with a sounding tube and a level indicator connected to the tank monitoring system.
The fuel oil system shall be comprised of a total 16000 gals in (6) tanks, two (2) main tanks, two (3) forward tanks , and one (1) day tank.
ALFA LAVAL or similar fuel system model MIB 303 shall be installed
A mechanical, reset type (FILL-RITE or equal) flow meter totalizer shall be installed in the transfer line. The fuel transfer system shall be fitted with a manual pump.
Fuel filters for the main engines and generators are to be conveniently located and dimensioned as engine/generators manufacturer’s specification. Both main engines shall be fitted with duplex RACOR filters (single filters the generators, see section 301-00) with isolation valves and vacuum gauges. Where used for fuel piping, all hoses shall be approved by the classification society. The system shall be equipped with the following filters:
Two (2) RACOR fuel filters, Mod. 75900MAX30 for main engines.
Generator RACOR to Mod. 900MA30 single unit.
Sight gauges tank level to be placed adjacent to the tanks and fuel tank level monitors to be placed at the wheelhouse. Drip trays to be provided for all pumps, drains and fuel filters.
Lube Oil system:
Two (2) storage tanks shall be installed, one for clean lube oil, the other for waste oil. Both tanks shall be filled within the engine room through a 25mm fill pipe with screw cap and shall be vented in the engine space with a
25mm screened vent. There shall be dipstick with on the clean oil supply. Both tanks to be fitted with sounding pipes and clean-out plates, similar to the manhole covers on the large integral tanks.
(2) two sea chests in the engine room using 8” pipe,combined service plus a 30% overage for downstream piping losses. A Removable filter screen to be located in the sea strainers pipes which shall top at or above water line for easy filter removal
The sea valves shall be Bronze Flanged Angle Globe type valve, as required by the classification society, and flanged joints shall be completely isolated due to metal dissimilarity. The strainer pipe bottom shall be flanged for easy removable.
The seawater shall be supplied to the system via the crossover pipe that is equipped with a shut-off valve. The cross over pipe shall be of sufficient diameter to supply adequate water flow at full usage, with only one suction.
The sea chest cross over pipe shall be fitted with a fresh water connection in order to allow filling of the seawater piping arrangement while dry-docked. Sea chests to be fitted with removable tops. The sea chest arrangement shall be fitted with a vent valve which will be configured in such a way that compressed air can be attached to clear the system.
Engine room seawater inlets are to service the main engine, generators ah- conditioning, hydraulics cooling, refrigeration, water maker and fire system. Bleed valves shall be attached to the seawater piping of the main engine, generator seawater cooling pumps and heat exchangers in order to release entrapped air.
Sea chests to have external grills which are to be the removable type to allow cleaning by a diver.
Aqua Signal or Similar
Engine room ventilation:
engine room shall have two fans (one supply and one exhaust. Fans to be variable speed and separately switched. Variable frequency drive (VFDs) shall be included for engine room fans.
Engine room supply and exhaust air shall be ducted through grills, water traps, baffles or trunks as designed by the BUILDER. Remote actuated fire flappers/doors also to be provided for intake and exhaust air which are to be part of the fixed fire suppression system.
Fresh water system:
Two pressure pumps on fresh water system shall be piped in parallel with
automatic pressure switches to control them, set at slightly different pressures. Pressure tank of large volume shall be installed downstream of the pumps. This system shall supply fresh water to all sinks and showers.
The hot water system is branched off the fresh water main line and shall consist of three (3) 40 Gallons electric hot water heaters.
There shall be a circulating pump integrated into the system.
Two FCI or similar 1800 GPD water makers
Black water System:
Head Hunter toilet sytem
Head Hunter or Hamman or similar USCG certified Type II MSD shall be installed
Black water tanks:
The black water tank shall be of steel construction, integral with the hull, as detailed in Section 1 10-00 Integral Tanks. The tanks shall have a 38mm ( 1 ½” ) diameter vent that is led into the deck stack and mast. Stop valves shall be installed at the connections to the black water tank.
The tank shall be fitted with one (1) diaphragm pump actuated by a high and low level switches which will also actuate an indicator lights and an audio alarm, (no automatic pump out). The pumps will be manually controlled. The black water tank shall discharge, via a Y-valve, overboard below the waterline, as far aft of the water maker inlet as possible, through a vented loop using the black water pumps or to a deck plate for shore pump out. The vent from the vented loop shall be plumbed back into main vent. The black tank shall have access hatches (one for each frame bay), made as large as possible for ease of maintenance.
Gray Water system:
The gray water tank shall be of steel construction, integral with the hull.
The tank shall have a diaphragm pump of the same model and make of the Black water pump and shall be fitted with two (2) level switches (high and low) to control the sump pump. Operation to be automatic, with an override switch to permit manual operation. Gray water pumps are to discharge directly overboard below the waterline, as far aft of the water maker inlet as possible, through vented loops.
Sinks and showers shall have individual water traps and shall drain to the gray water tanks. Air conditioning condensate and refrigerator condensate pans from chill and freeze boxes shall drain to the gray water tank, through a separate common drain pipe with appropriate water traps. The galley sinks shall have oversized drains and discharge to the gray water tank or directly overboard through a Y-valve. The dishwasher and the washing machines shall discharge to the gray water tank or directly overboard through a Y-valve. No other drains shall be connected to the galley sink and dishwasher drains
Compressor air system:
A air compressor shall be installed to handle the air horns. Quad horns with auto fog system.
There shall also be outlets located in the engine room and boat deck.
Aft main saloon and sky lounge doors are stainless steel automatic sliding.
Weather tight and manual water tight doors are custom yard built doors.
15 mm finished, located on swim platform, stairs to lower aft deck, lower aft deck and lower side decks to boat deck. Boat deck and all other deck areas are to be painted non-skid.
The accommodations on the 120' are much larger then you would expect to find on a vessel of this size, on the main deck there is a spacious lounge, separate dining area, large professional galley to port and foyer and day head to starboard. The aft deck has a settee with table.
The galley has a separate zone for the chef with double sink, six burner cook top, stacked ovens, Micro wave, full size side by side refrigerator/freezer and dish washer. There is crew lounge with table to port. Aft of the chef's zone is the U shaped Stewardess area, with double sink, dishwasher, trash compactor, under counter refrigerator, huge counter area part of which separates the chef zone and works for plating. There is extensive storage in both zones. Next aft to port is a door directly to the side deck, stairs up to the pilothouse and a door to the pantry area that separates the dinning area from the galley. The panty, has a ice maker, storage, coffee area, service counter and a wine cooler.
Forward on the main deck in front of the boat deck are two identical crew cabins with two upper and lower bunks with ensuite heads, between them is a crew lounge with settee, deck, table and TV. Stairs lead down to the Laundry and access to the lower guest area.
The lower deck has the master stateroom, two VIP queen staterooms, two twin staterooms with Pullman berths, laundry and extra refrigerator and freezer space.
The full beam 27', master stateroom is below decks in the center of the vessel. This stateroom is much larger then you would expect to find on a 120' vessel. The master has a king size bed, two matching walk-in closets with built in draws and shoe storage, there are also two additional large hanging lockers. On the port side is a settee and to starboard is deck/dressing table. The his and her head is aft with large central shower. The head is done in Brazilian granite.
The pilothouse deck has a large wheelhouse forward with settee, to port is a passage that takes you to stairs leading down to the galley or to the Captains cabin with double bed and ensuite head. Aft on the starboard side is the radio room and access to the upper foyer with day head and then the comfortable sky lounge with settee, TV area and office desk. The after deck has a large table for dining with wet bar.
The flybridge is quite large, has a full bar with BBQ, built in seating, storage, day head with out door shower and a full size Jacuzzi with over sized sun pad area.
The boat deck can carry an extensive amount of toys, will fit a 22' tender and has storage. The large foredeck can also be fitted out to carry additional toys or storage boxes.
107.01 KEEL 3/4" x 10" full length
107.02 STEM 3/4" x 10"
107.03 FLOORS 1/4" plate
107.04 SKEG sides 5/16", cross section 5/16"
107.05 BOTTOM PLATING 5/16" plate, up to the chine
107.06 SIDE, TRANSOM PLATING 1/4"
107.07 MAIN DECK PLATING 1/4" plate
107.08 BULKHEAD PLATING 1/4" plate and 3/16"
107.09 TANK TOP PLATING 1/4"
107.10 TRANSVERSE FRAMES Deck: 3"x 3" x 5/16" Side: 3" x 3"x 5/16"
107.11 TRANSVERSE FRAMES Floors: 1/4"
107.12 ENGINE FOUNDATION 8" x 3/4"
107.13 LONGITUDINAL FLOORS 5/16"
107.14 DECK GIRDERS 3"x 3" 5/16" beams
107.15 BOTTOM LONGITUDINALS 5/16" plate
107.16 SIDE LONGITUDINALS 3"x 3" x 5/16" or plate
107.17 DECK LONGITUDINALS 5"x 3"x 5/16"
107.18 BULWARK FRAMES 4"x 1/4" plate
107.19 BULWARK LONGITUDINALS 3"x 1/4"
107.20 BULWARK CAP PLATE 2 1/2" stainless steel pipe
107.21 BULKHEAD STIFF-VERT Corrugated
107.22 BULKHEAD STIFF-HORIZ Corrugated
107.23 HAWSE PIPING 4" to 5"
107.25 ANCHOR PLATES Stainless steel
107.26 CHAIN LOCKER 5/16"
107.27 RUB RAILS (9"x3"x9") x 1/4" capped with polished stainless steel
117.1 CABIN SIDE UPRIGHTS 4"x 1 1/2" & 3/16"
117.2 CABIN SIDE LONGITUDINALS 4"x 1 1/2" & 3/16"
117.3 CABIN TOP TRANS. FRAMING 4"x 1 1/2" & 3/16"
117.4 CABIN TOP GIRDERS 4"x 1 1/2" & 3/16"
117.5 CABIN TOP LONGITUDINALS 4"x 1 1/2" & 3/16"
117.6 CABIN SIDE PLATING 5 mm
117.7 CABIN TOP PLATING 5 mm
Water tight compartments:
2. Fresh Water Tanks
3. Bow thruster Compartment
4. Guest Stateroom Compartment
5. Master stateroom Compartment
6. Fuel Oil Tanks
7. Engine Room
8. Steering Gear Compartment
Piping System Table
All piping to meet classification requirements. There shall be no plastic piping in the engine room.
* Pipe CuNi 90/10
* Joints Welded or flanged
* Connections threaded or Flanged.( Minimize threaded as possible)
* Sea cocks CuNi 90/lO
* Valves all shall be of ABS type approved for its specific use.
Note: where CuNi piping penetrates steel decks and bulkheads a steel sleeve approximately 350mm long and of a larger diameter that adjoining piping shall be fitted.
* Steel or Aluminum
* Piping to be PVC.
* Fittings Stainless Steel grates on deck
* Sea Cocks None for main deck scuppers
All connections will be hard plumbed.
Fuel Oil and Lube Oil
* Pipe Steel
* Joints Welded or flanged
* Fittings steel
* Valves Stainless steel in engine room, true union ball type
* Pipe to be HERMETO high-pressure seamless Steel pipe
* Joints Socket welded
* Connections Marine grade hose, sized for system pressure
* Fittings HERMETO high pressure Steel fittings.
* Valves 316L stainless Steel, true union ball type
* Pipe CuNi piping to be used in engine room for seawater.
* CPVC piping to be used in engine room for chill water
* Pipe CPVC outside engine room
* Valves CPVC or bronze ball valves
Note: For internal scuppers steel or aluminum (depending on location) threaded fittings and plastic piping to be fitted. There are to be no hose and clamp connections in the scupper system.
Black and Gray Water
* Pipe PVC - DWG (schedule 40)
* Joints Solvent welded PVC
* Connections Steel/plastic flanged, plastic/plastic unions
* Sea Cocks to be welded sch 80 steel
* Valves PVC, true union ball type
Fresh Water (Hot and Cold)
* Pipe CPVC (schedule 80), insulated with l2mm insulation
* Joints solvent welded CPVC
* Connections Unions
* Valves Polypropylene or CBVC, true union ball type
* Water- CuNi 90/10
* Joints Welded or flanged
* Connections threaded or Flanged
* Sea Cocks, if installed shall be CuNi 90/10
* Valves Bronze
* Sea Water intake- CuNi 90/10 / Pickups - Galvanized
* Joints Welded or flanged
* Connections threaded or Flanged
* Sea Cocks, if installed shall be CuNi 90/10
* Valves Bronze
Noise and Vibration Criteria
Underway: Main engine in operation at 85% of maximum continuous rating and one generator in operation:
Salon 65 Decibels (A Weighed)
Guest Staterooms 62
Owner's Stateroom 64
Dockside: Main engines shut down, one generator running and air-conditioning in operation half speed:
Salon 55 Decibels (A Weighed)
Guest staterooms 50
Owner's stateroom 52
AC system shall be a 380/220 volt AC, three phase + ground (4-wire), 50 Hz system with power supplied by two (2) diesel driven generators, or from two (2) 100-amp sources. The source shall be equipped with two (2) 70 amp circuit breaker located within 7 feet of the inlet. The inputs will be designed so that they cannot back feed to each other. The electric power is distributed on a 4-wire system and enables single-phase equipment to be supplied a one phase and the neutral of 220 volt AC.
All cables shall be installed in accordance with ABS rules. Cables shall be thermoplastic coated, 75°C rating for engine room, 60°C elsewhere. Cables shall meet ABS standards.
High voltage cables are to be segregated from cables operating at lower voltages and all high voltage cables are to be readily identifiable. They are to be installed on an approved cable support system and provided with a continuous metallic screen, sheath, or armor, which is to be effectively bonded to earth to reduce danger to personnel.
The switchboards and all electrical panels shall be custom built panels. The switchboards shall be dead-front, drip-proof; of approved regulatory construction and shall be arranged to provide ready access to all devices for
replacement and service. All switchboard components, such as selector switches, circuit breakers (magnetic-type) shall be of a marine approved type. All circuit breakers, selector switches and indicators shall be clearly labeled as to their function. Switchboard interconnections are to be made with properly sized copper bus bars wherever possible.
The switchboard shall be broken down into two primary circuits (circuit #1 and circuit #2
The Builder shall furnish and install a low voltage system composed of the following:
Main engines: Four (4) 12-volt batteries (2 - 8D marine grade, 12 volt in
series in each bank). Each main engine shall be supplied with power from a separate bank, with paralleling capability.
Generators: Four (4) 8D marine grade 12-volt batteries, two for each generator. Batteries shall be wired to provide paralleling capability.
Electronics: Two (2) 8D marine grade 12-volt batteries, wired in series. A 24 VDC distribution panel shall be installed in the Pilot House for the electronics, navigation lighting, and PilotHouse lighting.
House Batteries: Two (2) 8D marine grade 12 –volt batteries.
The Builder shall furnish and install the following battery chargers:
- Main Engine Batteries: One (1) 220VAC 50hz /24V DC 60 amp battery
charger and engine alternators.
- Generator Batteries: One (1) 220VAC 50hz /24V DC 30 amp battery
- Electronics batteries: One (1) 220VAC 50hz /24V DC 30 amp battery
Battery chargers shall be Sentry or Mastervolt.
A Atlas or similar 60kva power conversion system will be installed in the system
A 24-volt DC emergency lighting system, independent from all other lighting circuits shall be installed in accordance with the classification society's regulations.
Electronics. Navigational Equipment and AV
The electronics package, including navigation and communication equipment shall be owner’s supplied
See Electronics and AV allowances
Carpet with Pad
$100.00 per sq. m
Granite flooring and countertop
$100 per sq. m
Interior settee fabric
and/or Brazilian calves leather
$90.00 per sq. m
Budget on soft goods including wall /overhead and window treatments.
Electronics / Entertainment cable run and equipment installation
Exterior light fixtures
$50.00 each with a total of 100 fixtures.
Interior light fixture
Galley equipment allowance
Plumbing / Bathroom fixture hardware allowance
Interior hardware allowance
for 2 tenders including life boat
Note: $ means U.S. Dollars