1990 Northwest Boats Custom Motor Yacht | 107ft

Shana

Offered for sale in the Pacific Northwest, Shana is a rare and remarkable 107-foot custom motor yacht built by Northwest Workboats of Seattle and designed by renowned naval architect Glade Johnson. Conceived as a long-range expedition yacht with commercial-grade integrity, Shana stands out for her all-aluminum construction—crafted from 5086 and 5053 marine-grade plate—and for her commanding presence, originally purpose-built for an experienced yachtsman with no compromises on quality or capability.

Her displacement hull and robust 330,000 lb build are powered by twin Detroit Diesel 16V92 TA engines delivering 1,400 horsepower each, overhauled just 500 hours ago to professional standards. Backed by Detroit V-drives, oversized bronze props, Naiad stabilizers, and a 16″ hydraulic bow thruster, she is engineered for serious coastal passage-making.

The use of aluminum not only gives Shana exceptional structural integrity and longevity but also reduces maintenance compared to traditional fiberglass yachts.

Designed and constructed in the Pacific Northwest for its demanding conditions, this yacht is a unique fusion of expedition toughness and luxury yachting, offering a platform that is rarely duplicated in today’s marketplace. With systems and capabilities that rival commercial vessels, and a pedigree grounded in one of the world’s great yachtbuilding regions, Shana is a standout vessel for owners seeking true seaworthiness, legacy design, and unshakable performance.

Additional Photos & Video coming soon

Accommodations

• Sleeps 10 in 5 staterooms

• Full-beam master suite with king + jetted tub

• Microphor toilets throughout

• Main salon with wet bar and seating

• Professional galley appliances (GE, KitchenAid, Bosch, Traulsen, U-Line, Panasonic)

• Dedicated dining forward

• Crew quarters with washer/dryer

Hull Construction & Design

• Builder: Northwest Workboats, Seattle, WA (completed 1990)

• Designer: Glade Johnson

• Naval Architect: Guido Perla

• Type: Displacement Motor Yacht

• Material: Marine-grade aluminum (5086 & 5053 plate)

• Thicknesses :

  • Hull sides:  1/2″

  • Bottom:  3/4″

  • Decks:  5/16″ teak over aluminum

  • Superstructure: 1/4″

• Bulkheads: spec list shows 4 watertight bulkheads, not mentioned in survey

• Dimensions: LOA 107′, Beam 26′, Draft 10′

• Displacement: ~330,000 lbs

• Tonnage: 174 gross, 52 net

• Finish: Survey confirms teak decks, but Awlgrip (2015) and Seahawk Tropicote bottom (2017)

Engines & Propulsion

• Main Engines: Twin Detroit Diesel 16V92 TA, 1,400 HP each (2,800 HP total), under 1000 hours

• Transmissions: Twin Disc DD6619RV V-Drives, ratio 2.5:1

• Shafts & Props: 4.5″ Aquamet 22 stainless shafts with 5-blade bronze Veem props

• Exhaust & Cooling: Wet exhaust, freshwater heat exchanger cooling

• Stabilizers: Naiad with 16 sq. ft fins

• Thruster: 16″ hydraulic bow thruster (PTO off genset + electric backup)

• Controls: Mathers CH5 pneumatic 4-station engine control

Electrical System

• Generators :

  • (2) Northern Lights 55 kW (installed 2010)

  • (1) 8 kW genset

• Power: 12V / 24V DC, 110V / 220V AC

• Chargers/Inverters: Multiple Sentry, Pro Marine, and Vanner battery equalizers

• Batteries: Survey states banks; spec list notes new batteries in 2023

Tankage

• Fuel: 7,764 gal (8 aluminum tanks)

• Gasoline: 226 gal (2 tanks, not used)

• Fresh Water: 947 gal

• Grey Water: 215 gal (2 tanks)

• Black Water: 61 gal

• MSD (Microphor): 182 gal

• Lube Oil: 234 gal

• Waste Oil: 234 gal

HVAC & Water Systems

• (2) 72-ton Marine Air chillers (new 2019)

• Electric cabin heat throughout

• (2) HRO watermakers (1,200 GPD each)

• 65-gallon electric water heater

• (3) freshwater pumps (2 × 220VAC, 1 × 24VDC)

Navigation & Electronics

• Furuno NavNet 3D multifunction

• Furuno SC-702 Sat Compass

• Furuno GP36 GPS

• Furuno Far-2127 BB Radar + Furuno 1832 backup radar

• Comnav 2001 autopilot

• Datamarine LX201 depth sounder

• Brooks & Gatehouse Hydra 330 system (5 stations)

• Furuno FS4001 HF/SSB, Furuno FA-150 AIS

• Icom IC-M604 VHFs, Standard LH10 loudhailer

• Entertainment: Bluetooth stereo, Starlink, New TVs

Safety Gear

• Viking 8-person life raft (requires recertification)

• Life jackets: 12 adult Type I + 4 child Type I

• 4 immersion suits

• EPIRBs: ACR Mini B & SATFIND 406 PRO

• SART beacon, ACR MOB beacon

• Halon engine room suppression (auto shutoff on fans/fuel)

• 4 firefighting stations + 6 handheld extinguishers

• Rochester 64-point alarm system with enunciators

• Smoke & CO detectors, high bilge water alarms

Tender & Deck Equipment

• Novurania 15′ RIB with new Yamaha 60 HP 4-stroke

• Seawise hydraulic davit system + tender crane

• Rebuilt 3,500 lb hydraulic winch

• Maxwell hydraulic windlass, 180 lb anchor + 500′ chain

• Hydraulic warping winches

• Walk-around side decks, swim platform with ladder