Great Harbour N37

THIS VESSEL IS IN PORT CHARLOTTE, FLORIDA AND AVAILABLE FOR SHOWINGS BY APPOINTMENT.

INSANDITY is an N37 built by Mirage Manufacturing in Gainesville Florida. She Is Hull #9 of the N37 series (Hull #41 overall) and has been well cared for. The Great Harbour Trawlers N37 is one of the most versatile and most sought after trawlers on the market today. It is known as a “do anything” vessel with a cult following for the ruggedness and extreme ease of maintenance the N37 exhibits.

The engine room on the N37 is recognized as the best on any vessel of its size. It provides standing headroom at a workbench and facilitates complete 360-degree access around each engine. INSANDITY is equipped with TWIN Yanmar 54 hp engines that typically have a service life of over 10,000 hours. The boat is equipped with a fuel polishing system and oil changing system that handles both propulsion engines and the 8 kw genset; The recent owner also had the ability to change the transmission oil plumbed in to the electric auto changer.

The galley in INSANDITY has a full-size refrigerator, four burner electric cooktop, and a microwave/convection oven.

Moving forward from the galley is the head with a spacious shower and separate vacu-flush toilet, vanity sink, and medicine chest with mirror. The head also incorporates a stainless steel opening port, which is one of six on the boat. The recent owner has added a fold out seat to the shower as well.

Forward of the head is the master suite. A full 60" by 80" Island queen berth is set on centerline, flanked by large storage areas that are a combination of hanging lockers and drawers. At the foot of the queen there are also four huge drawers for clothing storage.  Installed above the bed are sturdy grab rails to facilitate getting in and out of the bed. Access to the anchor locker has been added to the forward bulkhead from the bed, hidden behind artwork.

Across from the Galley to port is the guest stateroom. This cabin has a convertible day bench settee that converts to a comfortable full-size berth for two with plenty of storage space in drawers beneath.  There is a fold down desk arm that also makes the second state room a great office space when the berth is not being used. A small hanging locker rounds out the storage space in the second state room.

The Master, Guest Stateroom, Galley, and head are all on the same level with no steps. A short five steps up from the lower living area is the saloon with the helm station, navigator's bench and large wrap-around settee with folding table, set opposing a starboard-side settee. 

The outside areas of the N37 are famous for their protected walkways and super-secure on-deck areas. Access to the dual anchor pulpit in the worst of conditions is confidence-inspiring and safe, thanks to the waist-height rails that wrap around the entire deck. The deck is designed to take any amount of water and quickly drain with no constraints.

Great Harbour N37, Insandity is FOR SALE 

Insandity is Hull #41, a 2006 build.

Engines: Yanmar 4JH4E 54hp 

Hours as of 16 Nov. 2021 Port: 5279.0 hrs. Stbd: 5242.8, 624.8 since “blue printed” overhaulTransmissions: Port: 5279.0, 1172 since overhaul March 2018 by Mastry Stbd: 5242.8, 1070.8 since overhaul March 2018 by MastryMechanical throttles and transmission.

Capacities: 

Fuel: Approximately 500 gallons 

Water: Approximately 150 gallons per two tanks

Holding: Approximately 120 gallons

Electronics: 

Electronic Compass 

ICOM VHF IC-M602

Garmin GPS 172C

New Raymarine in 2015: e165 Hybrid touch MFD CP300 Sonar Module – Replaced in May 2017 with CP100 Downvision Module 24” 4KW HD Digital Dome Radar 

AIS 650 – Class B Transceiver ACU 200 P70R 

Color A/P Head Power RS 130 GPS Receiver Evolution EV1 Sensor Core CAM 100 NTSC Reverse Image ST1 to STNG Converter Kit 

Added Wet Compass Jan 2015 

Added ICOM IC-M802 SSB radio and Antenna with Daiwa SWR meter, 2017

MasPower MP8 generator separate engine start AGM battery (11/2021)dedicated battery charger.2133.6 hours as of 16 Nov 2021

Fuel Polishing system(with fresh filter 11/2021.)

Jabsco oil changing system, 2016 added Y connector for transmission oil on each engine.

Additions and Modifications (Comprehensive list available upon request):

2015 Numerous cupboard modifications increasing storage space in galley, 2nd stateroom, head and Master suite.

Sea chest

Weems and Plath Clock, Barometer and temp/humidity gauges 

2016Magna Pure Sine invertor/charger, Galvanic Isolator.Blue Sea M2 State of Charge (SOC) meter for house and engine start batteries.

All interior overhead lights changed to IMTRA LED system with dimmers in Saloon, Galley, MasterStateroom.

6 battery boxes with 6 Volt Lifeline AGM CG21 220 amp/hr. batteries in series/parallel circuits. Total of1320 amp/hrs. on house system. 

Separate Engine Start battery box (1) with 6 Volt Lifeline AGM CG21220 amp/hr. and combining switch for house-engine banks. 

New upholstery and window treatments in salon and 2nd stateroom.

High volume/high pressure raw water wash down system.

2017, 2 Golight LED Spot lights, each 544,000 Candela, one mounted on Bow pulpit with wireless remote, and one hardwired remote LED spotlight on masthead.

2018 upgraded forward A/C ductwork.

2020 Added engine flush kits on all AC and Engine raw water pickups, both A/C’s with engine room “quick connect” discharge water hoses for recirculating “Barnacle Buster”.

Re-galvanized both anchor chains.

2021Hull bead blasted to bare, with repairs to hull/gel coat, followed by bottom paint job 6 gal Epoxy PrimerKit, grey; 2 gal HRT Premium, Black; 4 gal HRT Premium Red.New Awlgrip Island Turquois (#H5723) paint above waterline to rub rail. 3 coats, sprayed on.

2021 Maxwell dual chain Windlass overhauled.

2025 new forward A/C unit installed