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2011 Trinity Yachts CUSTOM

Dania Beach, Florida


Launched in 2010, IMPROMPTU was built to a very high, custom specification with a stunning interior by renowned designer Patrick Knowles. The yacht underwent a refit in 2022, which included a full Awlgrip paint job, an extensive A/V and Wi-Fi upgrade, a new ASEA shore power converter, and a new sewage treatment plant. She completed her 10-year ABS survey in 2020, leaving her in excellent condition. IMPROMPTU boasts an impressive charter history.


Twelve guests will spend restful nights in IMPROMPTU’s six beautifully appointed staterooms. Her versatile layout comprises a split-level master stateroom with king-size bed and dedicated his and hers ensuites on the main deck and an elevated lounge with impressive 180-degree views. On the bridge deck, a VIP queen stateroom is flooded with natural light thanks to large windows. On the lower deck, her accommodations consist of three King staterooms and a twin stateroom with Pullman, all complete with desk areas and shower en-suites.


IMPROMPTU’s main salon features an open-plan seating area with dining forward for 12 guests. A grand, centrally located spiral staircase features a dedicated wine cellar at the top of the stairs. The main deck aft showcases a raised conversation area with plentiful seating and air conditioning if desired. A dual staircase leads down from the main deck aft to an oversized swim platform and tender/toy garage. IMPROMPTU’S skylounge is dedicated to guest entertainment, with an L-shaped sofa to port, a generous bar with seating, a 60” television and a game table. For alfresco dining, guests can head to the bridge deck aft and join around the circular dining table for twelve. Further aft is additional seating to further conversation after a delightful meal.


IMPROMPTU’s spectacular sundeck is the ultimate place for friends and family to gather together. The showcase of this incredible sundeck is her custom, raised waterfall Jacuzzi for 12 guests with beautiful tilework and steps for entering on both sides. The space is further enhanced by a large outdoor bar with seating for five, a barbecue and a dayhead. Guests can also enjoy meals under the stars thanks to a large dining table. The sundeck is rounded out both forward and aft by chaise loungers, an oversized sunpad, and built-in seating areas, all with umbrellas for shade on the sunniest of days. 


IMPROMPTU effortlessly combines timeless elegance and comfort to create the perfect environment for the owner and their guests to make unforgettable memories. 


Legacy Yacht Group is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Northrop & Johnson Yachts-Ships LLC.

Basic Boat Info

Make: Trinity Yachts
Year: 2011
Condition: Used
Category: Power
Builder: Trinity
Designer: Patrick Knowles
Construction: Aluminum
Boat Hull ID: TYY16455K011
Has Hull ID: Yes


Length: 164 ft / 49.99 m
Length Overall: 164 ft / 49.99 m
Beam: 28 ft / 8.53 m

Engines / Speed

Engines: 2
Engine #1 Specs:
  • Make: CAT
  • Model: 3512B E-rated
  • Fuel: Diesel
  • Type: Inboard
  • Engine Hours: 11211
  • Engine Location: Port
Engine #2 Specs:
  • Make: CAT
  • Model: 3512B E-rated
  • Type: Inboard
  • Engine Hours: 11211
  • Engine Location: Starboard
Cruising Speed: 16.5 kn
Maximum Speed: 18.5 kn


Heads Count: 8
Boat Class: Motor Yachts


1. 10-year ABS survey completed 2020.

2. Full Awlgrip HDT paint-job completed 2022.

3. Accommodations for 12 guests in 6 beautifully appointed staterooms, including an on-deck, split-level master with dedicated his and hers en-suites, a VIP queen stateroom on the bridge deck, three additional king staterooms, and a twin stateroom with Pullman berth.

4. Sun deck features a custom, waterfall pool for 12 guests, dayhead, L-shaped bar, BBQ, large alfresco dining table, and plentiful sunpads and lounging areas.

5. New 50-ton A/C plant, ASEA shore power converter, and sewage treatment plant.

6. Significant A/V and wifi upgrade in 2022.

7. Main engine and generator top-end overhauls completed in 2020.

8. Tender garage and bow tender storage ensure the guest areas are fully dedicated to guest use only.

Aluminum, semi-displacement hull Teak decks throughout Awlgrip HDT complete paint job 2022

IMPROMPTU sleeps 12 guests in 6 beautifully appointed staterooms. 

Master Stateroom: main deck forward, full-beam: Split-level with King size bed on the main deck and private lounge forward   Private study at entrance with desk   His and hers dedicated en-suites, his with a shower, hers with a jacuzzi, vanity, and adjacent walk-in closet VIP Stateroom: bridge deck, aft: (1) x Queen berth with en-suite shower (4) x Guest Staterooms, lower deck, amidship: (2) x King staterooms, port and starboard aft, with en-suite showers and desks   (1) x King stateroom, forward with en-suite shower   (1) x twin stateroom with Pullman berth on port side, en-suite shower and desk 


Accommodations for 9 crew, including Captain's cabin on bridge deck


Length overall: 164' (50m) Length at waterline: 147' (45m) Beam: 28' (8.5m) Draft Minimum: 8'6" (2.59m) Draft Maximum: 8'10" (2.69m) Gross Tonnage: 490   Net Tonnage: 147   Displacement (light ship): 284.14LT  


Fuel Capacity: 17,500 US Gallons (66,238 liters) Water Capacity: 2,600 US Gallons (9,841 liters) Watermakers: (2) x 2,500 US Gallons/day; 5,000 total/day (9,463 liters/day) Lub Oil: 248 US Gallons (939 liters) Dirty Lub Oil: 280 US Gallons (1,060 liters) Grey Water: 1,610 US Gallons (6,132 liters) Black Water: 426 US Gallons (1,650 liters)


Maximum speed: 18.5 knots Cruising speed:  16.5 knots Economical speed: 12 knots 

Main Engines

  • Engine Type: (2) x CAT 3512B E-rated  Top end overhaul 2020
  • Engine Hours (as of 5/6/2024):
  • Starboard: 11,211
  • Port: 11,211
  • Gearboxes: Reintjes WVS 730/1 K12 Ratio 3.047:1
  • Shafts & Propellors: Michigan wheel, Nibral CX-500, 5-blade, 56" x 55" pitch


  • Generators:  (2) x Northern Lights 130 Kw, 1800 RPM  Both Generators rebuilt in November 2023
  • Generator Hours 
  • Starboard: 2,228 hours (Full Rebuild at 28,312hrs in 2023)
  • Port: 1,595 hours (Full Rebuild at 29,310hrs in 2023)
  • Electricity: 120v L&N
  • Shore Power: ASEA 150 kVA AC150LC-3/2-S (New 2022)
  • Batteries: 
  • Main engine starting: 12 x 12V AGM Odyssey PC1800-FT 1300  (New 2021)  
  • Generator starting: 12 x 12V AGM Odyssey PC 1800-FT 1300  (New 2022)


  • Type: Dometic, 4-stage 50-ton plant  (New 2021)  
  • 2 speed compressors and titanium condensors

Additional Machinery

  • Stabilizers: Quantum QC-1500 E-M1, Zero-Speed   Major Service 2022
  • Watermakers:  (2) x Neptune MWM-252635 FCI 
  • Bow Thruster: Quantum QT 150, 150 hp
  • Steering System: EMI Model DE03 Dual, 3hp
  • Rudder Angle Indicator: Sperry
  • Fuel Filtration: Alfa Laval MAB 103, 300 GPH 208 VAC 3-PH
  • Fuel Filters: Racor 2010 PM
  • Sewage System: Headhunter  (New plant 2022)
  • Ventilation: Heinen Hopman
GPS: Furuno GP-150 GPS Automatic Pilot: C-Plath Navipilot 4000 Radar: X-Band Furuno FR- 2127BB 25kw Chart Plotter: Transas 4,000, Nobeltec  Magnetic Compass: C-Plath NavigatxMK2 with PG1000 Fluxgate Gyro Compass: C-Plath NavigatxMK2 with PG1000 Fluxgate Echo Sounder: Furuno Wind Instruments: Furuno 
Main Salon: 42" Television Skylounge: 60" Television Master Stateroom: 42" Television VIP Stateroom: 31" Television Starboard Aft, Port Aft, Starboard Forward Staterooms: 31" Television Port Forward Stateroom: 21" Television Outdoor theater with surround sound   Apple TV   DirecTV Satellite TV   Kaleidescape central movie server   iPod connections   Xbox   Airplay

Communication System

Internet: K4 Edge Server(New 2022)   K4 HTS Modem & Swith assembly (New 2022)   Internal network with 15x wireless access points (New 2022) VSAT: Intellian V100NX 8wBUCVSAT System (New 2022)   Intellian S100HD WorldView HDTV Multi-Feed & WorldView Trio LNBn (New 2022)   K4 LTE Onedome antennae (New 2022) VHF Radiotelephones: Furuno FM8800 S with DSC Telephone System: Panasonic
Anchor Windlass: Muir VRC 1100, hydraulic   Serviced 2020 Aft Warping Capstans: Muir VC 4000, hydraulic   Serviced 2020 Boat Crane & Davits: Nautical Structures Overhead SL4000-DEX 223-316   Serviced 2022 Passerelle: 2 x Marquipt Superfold, hydraulic (stern) Side Boarding Ladder: 2 x Marquipt, aluminum, folding Searchlight: Carlisle & Finch 200X Xenon
Fire-Fighting: Fire Detection; Edwards E-FS502R, 5-Zone Alarms: Servowatch Security: CCTV Bosch   (6) cameras   (2) displays Ship's safes: (1) x Master Stateroom   (1) x Captain's Cabin
  • 39' (11.89m) Nor-Tech 390 Sport 2022 towed tender w/ 4x450 hp
  • 2x 3-person Yamaha VX Cruiser waverunners (2022)
  • 2x Seabobs
  • 2x Lift Electric Hydrofoils
  • 1x Floating Beach Club pool with jellyfish net, loungers and swim ladder
  • 4 x  e-bicycles  
  • Snorkel gear, paddleboards, beach toys

A detailed list of exclusions will be provided at the time of a fully executed Agreement. 


Specifications and details of this vessel are provided in good faith for informational purposes only. Data regarding the specifications, operating characteristics and condition of the vessel was obtained from sources believed reliable but is not guaranteed by owner or brokers. Buyer assumes responsibility to verify all speeds, capacities, consumptions and other measurements contained herein and otherwise provided and agrees to instruct his agent or surveyor to confirm such details prior to purchase. Vessel is offered subject to prior sale, price and inventory changes and withdrawal from market without notice.


Engine hours are as of the date of the original listing and are a representation of what the listing broker has been told by the owner and/or actual reading of the engine hour meters. The broker cannot and does not guarantee the true hours. It is the responsibility of the purchaser to verify engine hours, warranties implied or otherwise, and major overhauls as well as all other representations noted on the listing brochure.

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