Specifications

MAIN CHARACTERISTICS

Name BACK 9 AND A HALF 

Type Motor Yacht / Planning Hull

Builder ISA Yachts

Year 2017 (August) 

Refit Year 2024

Hull No 11

Yacht Model 120 Sport 

LOA (M/FT) 36.60 M 120’ 01”

LWL (M/FT) 30.00 M 98’ 05”

Length COR 31.15 M 102’ 02”

Beam Overall (M/FT) 7.40 M 24’ 03”

Beam moulded (M/FT) 3.66 M 12’ 00”

Draft (Half Load) (M/FT) 1.30 M 4’ 03”

Draft (Full Load) (M/FT) 1.50 M 4’ 11”

Gross Tonnage 244 GT

Displacement (Fully Loaded) 160 T

Displacement (Half Loaded) 147 T

Displacement (Light Ship) 135 T

Hull Material Fiberglass / GRP

Superstructure Fiberglass / GRP

Decks Teak Laid

Flag Cayman Islands 

Classification RINA C + HULL ° MACH Ych; Short Range (Expires 02.08.2027)

MCA Built to MCA Standard

Naval Architect ISA Yachts

Exterior Designer Andrea Vallicelli

Interior Designer ISA Yachts & Guida Design

Main Engines 3 x 1,790 kW / 2,400 hp @ 2,450rpm, 16V2000M96

Speeds 31 Knots max

24 Knots cruising

12 Knots economical

Range 550 nm @ 12 knots

Guest Accommodation 10 Guests in 5 staterooms

Crew Accommodation 6 Crew in 3 cabins

Minimum Safe Manning 5 

COMMENTS AND NOTEWORTHY FEATURES AT A GLANCE

• Designed for shallow water cruising with a draft just under 5’

• Fast cruising speed topping out at 31 knots

• At rest zero speed stabilizers for comfort underway and at anchor

• Five guest cabins in total with two twins convertible to Queens

• Highly proven 11th hull of the ISA 120’ series

• IRS Bonus Depreciation candidate

• US Duty Paid

• Capable of Commercial Registration for charter purposes

CLASSIFICATION

Flag Cayman Islands 

Port of Registry George Town

Classification Member of IACS / Non - IACS

IACS Society RINA

US Tax Status US Duty Paid

MMSI Number 319310400

Official Registration 754173

REGULATION

Vessel Registration Cayman Islands

Built to Commercial Compliance Yes

Mini ISM Yes

MLC Yes

SQUARE METERS

TOTAL 276 M² 2,970.8 FT²

Sun Deck: 71.34 M² 767.8 FT²

Main Saloon 49.7 M² 534.9 FT²

Corridor + Stairs 6.9 M² 74.2 FT²

Owner’s Stateroom 28 M² 301.3 FT²

VIP Stateroom 11.2 M² 120.5 FT²

Lower Guest Stateroom 3.9 M² 41.9 FT²

Twin Stateroom 18 M² 193 FT²

Foyer 16.2 M² 174.3 FT²

ACCOMMODATIONS

OVERVIEW 

BACK 9 AND A HALF accommodates up to 10 guests across five spacious cabins, including an extensive owner’s apartment that stretches over two floors and is fitted with a skylight that emphasizes the feeling of spaciousness of the area. She accommodates six crew across three cabins. With a spacious and bright salon and a main dining area that opens outward by the way of six curved, sliding-glass doors, the interior is modern yet rich and offers ultimate guest comfort across all three decks.

The exterior living space includes a stylish sundeck, a large al fresco dining area for all 12 guests, built in seating areas and a bar. With a tender garage to starboard and dedicated two jet-ski garages on port and starboard, there is plenty of storage space for all the necessary amenities to make the best of the superyacht lifestyle. Powered by three MTU engines and equipped with anchor zero speed stabilization fins, Back 9 and A Half can reach top speeds in excess of 31 knots.

ACCOMMODATIONS 

LOWER DECK 

2 x VIP suites on the lower deck aft

2 x Twin suites on the lower deck forward (convertible to Queens), all with en suite facilities

MAIN DECK 

OWNER’S STATEROOM 

Master stateroom located forward on the main deck with ensuite facilities

CREW ACCOMODATION 

3 x Twin bunk cabins with ensuite facilities

CONSTRUCTION

Hull Material Fiberglass / GRP

Superstructure Material GRP

Decks Material Teak Laid

Paint Imron Marine

Motor Hull Type Planning

Motor Hull Sub Type Flybridge

Number of Decks 3

CAPACITIES

Gross Tonnage 244 GT

Net Tonnage 73 T

Displacement Tons 160 T

Fuel Capacity 25,000 Liters 6,604 USG 

Day Tank 7,500 Liters 1,981 USG

Main Tanks 17,500 Liters 4,623 USG

Fresh Water Capacity 4,000 Liters 1,056 USG

Water Makers 200 L/hour 52 USG/hour

Black/Gray Water 3,600 Liters 951 USG

Bilge Water Tank 670 Liters 177 USG

Oil 140 Liters 36 USG

Sludge/Alfa Laval Tank 575 Liters 152 USG

Sludge Water 670 Liters 176 USG

Speed

(Knots) Consumption

(Liters p/h) Range

(Nm) RPM

Maximum 31 1500 650 2400

Cruising 24 1000 600 2100

Economical 12 500 550 1400

Consumption at Anchor 15 Liters/hour

MAIN MACHINERY

Main Engines 3 x 1,790 kW / 2,400 hp @ 2,450rpm, 16V2000M96

MTU Diesel Engine (under warranty)

Engine Hours (February 2026) Port: 1,729

Center: 1,332

Starboard: 1,845

Propulsion Type Water jets

Engine Controls Rolls Royce

Engine Mounts Rubber design

Engines Exhaust System Wet exhaust system with muffler x3

Gear Boxes 3 x ZF 3060

Shafting Straight shaft inboard

Propulsion 2 x Kamewa water jets 71S3

1 x Kamewa water jets 56B3 (center)

Coupled with Rolls Royce

Engine Ventilation 4 x Powered ventilation fans with dampers

GENERATORS & ELECTRICITY

Output/Electricity 230/400 V

Generators 2 x 70 kW 400 VAC 50 hz

Generator Hours (February 2026) Port: 5,710

Starboard: 6,233

Generator Fuel Consumption 15 Liters/hour

Generator Exhaust System 2 x Wet exhaust system with muffler 

Shore Power 400/230 V, 50 HZ, 3 PH, 100A

Shore Power Converter SAE automatic shorepower 50 hz / 60 hz 

Batteries 24V DC

Battery Chargers 4 x Chargemaster 24/40-3

Generator Start Battery start 24 V DC

AUXILIARY MACHINERY

Steering System 2 x Kamewa water jets 7153, Rolls Royce

Steering Gear 2 x Kamewa water jets 7153, Rolls Royce

Emergency Steering 2 x Kamewa water jets 7153, Rolls Royce, manual handlers in engine room

Bow Thruster 1 x 50hp (37kW) AC motor

AMS

Stabilizers 2 x ABT Trac electric Zero speed 12 sq.ft X Star

Helm/Wing Station Controls Helm 2 x Rolls Royce levers, 1 helm

Fly deck 2 x Rolls Royce levers, 1 joystick

FUEL & OIL SYSTEM

Fuel Filters MTU XP 511083 0002, Racor #F15211

Fuel Oil Separator 1 x Alfa Laval MIB 503S 13/33

Fuel Transfer Pump 1 x Gianneschi

Bunkering Station 3 x Stations, aft deck, stbd. midship, port midship

Dirty Oil Pump 1 x Gianneschi

FIREFIGHTING & BILGE SYSTEM

Firefighting & Bilge Pump 2 x Gianneschi Q: 500/180 LT/MIN

FRESH WATER SYSTEM

Fresh Water Makers 1 x Idromar 200 liters /hour 

Fresh Water Treatment 1 x Filtro Inox Gem 3/10

Fresh Water Pressure 3.5 Bar

Hot & Cold Circulation Pump 2 x Gianneschi cold pump 5/70 L/minute

1 x Wilo Star Z 25/2

Hot Water Boilers 2 x Gianneschi boilers 150VE, 150 LT, PMAX 6 bar

Sea Water Pumps Calpeda pumps Q 4.8/15M3/H

BLACK & GREY WATER SYSTEM

Black & Grey Water Treatment 1 x Hamman HL-CONT compact 

WC's (toilets/bidets) 8 x Planus toilet, 1 bidet

Black & Grey Water Pumps 1 x Gianneschi

AC & VENTILATION SYSTEM

Air Conditioning Dometic AC (Condaria)

4 x Compressors

Air Compressor 1 x Gianneschi 8-10 bar, 460 Liters/minute, 1350 RPM

Air Handling Units 2 x Dometic air handling, 3 x Dometic air extractors

Engine Room Ventilation 4 x Powered ventilation fans

Galley Ventilation & Extraction 1 x Alpes iNOX extraction fan

HYDRAULIC SYSTEM

Hydraulic Power Packs 1 x Hydraulic unit (jet skis & tender)

1 x Hydraulic unit (gangway)

NAVIGATION & COMMUNICATION SYSTEMS

NAVIGATION SYSTEMS

X-Band Radar Furuno DSR 12A

Radar Furuno NavNet 3D Furuno DRS12A

Chart Plotter Time Zero 

UPS Eaton SUINT3000LCD2

Eaton SUINT3000LCD2

Magnetic Compass C-Plath – 2795AA

Gyrocompass Sperry Marine NAVIGAT - 100

Auto Pilot Navis AP3000

Rudder Angle Indicator System Rolls Royce

Echo Sounder Furuno RD33

Speed Log Furuno RD33

Depth Sounder Furuno RD33

GPS Furuno GP33

AIS 6004-COBHAM

Navtex Furuno NX-70

Wind Instruments Furuno

Horn Foresti & Suardi SPA

Search Lights Northern Lights

Bridge Navigation Watch Alarm BNWAS BR-500

Weather Fax Cobham-Sailor

COMMUNICATION SYSTEMS

SAT com Sailor Cobham TT-3672A

INMARSAT – C Sailor 6006 Cobham

ECDIS Time Zero

VHF Radiotelephones Sailor VHF DSC Cobham

Portable VHF ICOM M85E VHF, ICOM F62D-UL (fire fighters radio)

Portable GMDSS VHF Sailor SP3520

Radio Telephone Sailor VHF DSC-Cobham

Telephone Systems Exchange Sailor VHF

Cobham GMDSS

VHF Digital Radios Sailor

Navtex Receiver Furuno NX-700

GMDSS Battery Plant Haze gel – HZY 12-200, 12V 240AH

Internal Ship’s Communication VHF radios

Internet 5G router with 30-mile antenna booster (3 models - Yacht Router, D-Link, Pepwave Grandstream access point)

DECK MACHINERY & EQUIPMENT

Anchors 2 x 120kg anchors

Anchor Chains 2 x 110m chain

Anchor Windlass System Maxwell

Cranes Bezesoni 1,000 kg (tender)

2 x Bezensoni 360 kg (jet ski)

Warping Capstans 2 x Maxwell forward

2 x Aft warping

Davits 3 x Hydraulic Besenzoni (2 jet skis, 1 tender)

Passerelle 1 x Hydraulic come out from center of the stern

Side Boarding Ladder 1 x Piece portable aluminium

Sea-stair 1 x Piece portable aluminium

Stern Boarding Gangway 1 x Besenzoni hydraulic with custom handrails

Swimming Ladder Carbon fiber swimming ladder

Lighting Interior: BCM light

Exterior: Cantalupi and Palagi lights

Paint Exterior Imron Marine 2K Topgloss MSF7-24213 White

Imron Marine 2K Topglass MSF7-7082 Grey

Paint Underwater Hempel Silic One 77450

Underwater Lights 4 x Starboard aft

4 x Aft

4 x Port aft

SAFETY, SECURITY, & FIREFIGHTING EQUIPMENT

IPRO CCTV Remotely operable:

5 x Engine room

1 x Main master

1 x Main salon

Monitors Onyx

Ship’s Safe 4 x Maurer (captain cabin, master and 2 VIP staterooms)

Fixed Firefighting System Fireboy HFC-227, FEST 52LT

Firefighting Equipment 5 x Foam 9kg 

7 x CO2 5kg

8 x Powder 6kg

1 x CO2 20 kg

2 x Viking fire fighting suits

6 x Cylinders

2 x Masks

Gas Detection Consilium SG 37408

Smoke Detection Consilium SG 38662

Fire Alarm Consilium SG 38662

Life Rafts 3 x Survitec Xtreme 138H (8 person)

Breathing Apparatus Drager Air LMK 162 UT

Lifejackets 20 x Adult, 6 x children, 6 x inflatable

Immersion Suits 18

Life Rings 4: 2 x Smoke & line, 2 x Line

EPIRB Sailor SE 406-II

SART Sailor SART II

Flares and Signals 6 x Red flare

2 x Smoke

6 x Red parachute

Medical Equipment MCA compliant medical bags

ENTERTAINMENT, AUDIO/VISUAL AND IT SYSTEMS

Video Equipment Panasonic DVD 

TVRO SATTV

Audio Equipment Panasonic/ Bower & Wilkins speakers

Control ITW Modex powered by Videoworks

Light Management Lutron system

Main Salon TV, iPad, Apple TV, Sonos

Master Stateroom TV, iPad, Apple TV, Sonos

VIP Stateroom TV, iPad, Apple TV, Sonos

Guest Staterooms TV, iPad, Apple TV, Sonos

Sky Lounge Sonos

Exterior, Aft Deck, Bar, Bridge Deck Sonos

Crew Mess TV, iPad, Apple TV

IT Ubiquiti UniFi

WIFI WiFi, Cisco Routers

GALLEY & LAUNDRY EQUIPMENT

MAIN GALLEY EQUIPMENT

Cooking Equipment 1 x Miele hob 

1 x Miele microwave

1 x Miele oven

1 x Kenwood mixer (3 in 1)

Refrigeration/Freezer 2 x Frigoboat refrigerator

3 x Frigoboat freezers

Dishwasher Miele

PANTRIES AND OTHERS

Other 1 x Frigonautica mini fridge (master stateroom)

1 x Frigonautica mini fridge (main salon)

1 x Angelo PO ice maker (main salon)

1 x Nespresso coffee machine (main salon)

CREW GALLEY / MESS EQUIPMENT / COOKING EQUIPMENT

Microwave Miele

Other 1 x Miele hot plate

Top Deck 1 x Frigonautica refrigerator 

1 x Angelo PO ice maker

Wine Storage Miele

Main Laundry Equipment 1 x Miele washer 

1 x Miele dryer

Crew Laundry Equipment 1 x Miele washer 

1 x Miele dryer

OTHER EQUIPMENT

Spa Tub 1 x Nordic round hot tub (84”)

TENDERS & TOYS

Tenders 1 x Williams Sport Jet 345

Jet Skis 2 x Sea Doo Spark TRIXX 90 1 UP

Toys 2 x Seabobs

2 x SUP (inflatable)

1 x Inflatable donut

1 x Waterski

1 x Wakeboard

CAPITAL IMPROVEMENTS

2024

• 5 Year Rina special survey completed

• Water jets replaced all hydraulic hoses, cylinder seals, hydraulic filters + oil analysis; All activity according to manufacturer recommended scheduled maintenance for 5 years has been completed with success – works performed by G-jets Next overhaul service is due

• Mega test performed successfully

• Sea chests inspected and cleaned + new zinc & anodes (including 4 new butterfly valve DN200 on seachest)

• Bridge door rubber seal replaced

• Emergency + radio batteries all replaced + main engine starting and service battery

Disclaimer

The company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change or withdrawal without notice.