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Seller's Description

elson/Marek, one of sailing’s most recognized design teams was commissioned by Morgan Yachts to design their fastest 45 footer and the end result was the Morgan Nelson/Marek 454. This boat is unique in that she is fast and has superb accommodations all in one. One of her best features is her shoal draft with centerboard. When the centerboard is up, her draft is only 5’6”, which makes it easy for her to gunk hole around. With her board down, her draft extends to over 8’ which makes her safe and very stable offshore. Her sugar scooped transom makes her easy to board from the dinghy.

‘Vonyachtski’ has been loved and maintained by her current owners for 5 years, and her previous owners for 15. She gets hauled each spring and is laid up for hurricane season. Her engine is freshwater flushed after each haul out and seasonally is covered with shadecloth, and her canvas and sails removed for storage. Oil and filters changed every 100 hours. She comes complete with many extras.

Call today! She won’t last!

Equipment: Raymarine E-95 Hybrid Touch Multi Function Display (new 2013) Raymarine EV 400 Autopilot with Octopus Hydraulic Linear Autodrive (both new 2017) Standard Horizon GX 2200 with integrated distress signal DSC and AIS VHF Radio with RAM mount (new 2018) RAM mount for iPad 2 GPS antennas Depth/Speed/Wind indicators Sony AM/FM/CD/Aux radio JVC 20” Combination LED TV and DVD (new 2013) Epirb 406 -Custom Nav Station Chair Mechanical/Electrical Yanmar 4JH4TE 75 hp Turbo Diesel (new 2007 with 2100 hours) Hurth transmission/3 bladed fixed prop/1 1/4” shaft/dripless shaft seal 110v system with breaker panel Batteries 2 4D AGM house batteries with ACR charge relay (new 2016) and Link 1000 battery monitor Promariner 12V 60 amp Pro Nautic 1260P3 inport battery charger (new 2016) 2 180 watt Solar Panels with 2 Victron Solar Controllers (new 2018) Sailor Solutions engine soundproofing (new 2018) Grocco raw water strainer (new 2018) Damper plate and shaft alignment (new 2020) 75 foot 50 amp power cord with custom cover to match sunbrella Running, anchor, steaming lights and all interior lights (all replaced with LED 2017) 2 reverse cycle A/C-Heat- 16000 BTU CruiseAire (rear cabin), 9000 BTU Mermaid (salon & forward) 3 bilge pumps, 2 automatic, 1 manual -Racor filter Rig Inspection in December 2017 -Isomat Spar (63 ft height) New chainplates 2013 Middle shroud replaced in April 2013 Main sail 3 full battens, 2 short with 2 reef points & main sail cover Harken cruising furler with jib (new 2006) Whisker Pole (mast mounted with up and down controls) Fixed back stay 7 Lewmar self tailing winches Boom Vang (new 2017) Bimini, Dodger, Mainsail cover and custom removable full cockpit enclosure New Found Metal stainless steel opening ports with screens (7) Bomar forward and mid-ship hatches and screens Force 10 propane BBQ grill with shelf (new inside parts 2017) 4 Dorade vents with covers Rocna 33 kg anchor with Mantus swivel (new 2018) with 200 ft of 3/8 chain Bruce with chain and braided nylon Muir 250 electric windlass (new motor and gearbox 2019) with up/down foot switches Caribe C10X Rib Dinghy with Yamaha 15 hp 2 stroke motor (2006) Custom Aluminum Dinghy Davit Lewmar Stainless Steel Motor Hoist -Viking Rescuyou Coastal Liferaft (new 2017)

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Specs

Designer
Nelson Marek
Builder
Carroll Marine
Associations
?
# Built
6
Hull
Monohull
Keel
Fin
Rudder
Spade
Construction
FG

Dimensions

Length Overall
46 7 / 14.2 m
Waterline Length
147 7 / 45 m
Beam
0 0 / 0 m
Draft
0 0 / 0 m
Displacement
18,500 lb / 8,391 kg
Ballast
11,000 lb / 4,990 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
1,195′² / 111 m²
Total Sail Area
?
Mainsail
Sail Area
?
P
?
E
?
Air Draft
?
Foresail
Sail Area
?
I
?
J
?
Forestay Length
?

Auxilary Power

Make
Volvo
Model
?
HP
50
Fuel Type
Diesel
Fuel Capacity
20 gal / 76 l
Engine Hours
?

Accomodations

Water Capacity
40 gal / 151 l
Holding Tank Capacity
?
Headroom
?
Cabins
2

Calculations

Hull Speed
11.2 kn
Classic: 8.39 kn

Hull Speed

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Formula

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL

11.21 knots
Classic formula: 8.39 knots
Sail Area/Displacement
27.3
>20: high performance

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

Formula

SA/D = SA ÷ (D ÷ 64)2/3

  • SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
  • D: Displacement in pounds.
27.34
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
59.5
>40: stiffer, more powerful

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Formula

Ballast / Displacement * 100

59.47
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
136.7
100-200: light

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

Formula

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

  • D: Displacement of the boat in pounds.
  • LWL: Waterline length in feet
136.69
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
21.2
20-30: coastal cruiser

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Formula

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)

  • D: Displacement of the boat in pounds
  • LWL: Waterline length in feet
  • LOA: Length overall in feet
  • Beam: Width of boat at the widest point in feet
21.21
<20: lightweight racing boat
20-30: coastal cruiser
30-40: moderate bluewater cruising boat
40-50: heavy bluewater boat
>50: extremely heavy bluewater boat
Capsize Screening
2.1
>2.0: better suited for coastal cruising

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

Formula

CSV = Beam ÷ ³√(D / 64)

  • Beam: Width of boat at the widest point in feet
  • D: Displacement of the boat in pounds
2.05
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

First offered as NELSON MAREK 46 IMS, NELSON MAREK 46CR, and then the NELSON MAREK 46PC (Performance Cruiser) shown here.

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