Seller's Description
Mast Painted - August 2022
Keel Faired and Bottom Painted – August 2022
New Rod Standing Rigging – August 2022
Spare Headstay with Roller Furler
Great Cruising Yacht
Excellent Racing Pedigree
Winner Pineapple Cup
Winner Transpac
Winner San Diego to Puerto Vallarta TWICE
Winner Newport to Cabo
The J145 is the answer for sailors seeking great performance without sacrificing the creature comforts that makes her a wonderful family cruising yacht. She is the answer for those who seek grace and elegance in their cruising comforts…but not at the cost of performance. The J145 brings the romance back to sailing. The design is unique among boats over 45 feet. She offers great balance, ease of sailing when shorthanded, comfortable to cruise or live aboard while cruising, and a great yacht to entertain on. As a SAIL Magazine Top Ten award winner, and with victories & honors in some of the world’s most famous offshore races she has defined a unique class of dual purpose performance yacht.
The J145 makes Sailing surprisingly easy. Two people can go for an afternoon sail in just minutes. Throw off the boom cover. Hoist the main on a 2:1 halyard. Cast off and sail under main alone or unroll the jib from its furler. Thats it. Easy, upwind and downwind. Its unlike anything youve sailed. A boat this fast with such a low center of gravity or a boat this large thats so responsive and easy to handle. Its like sailing a 40 footer that turns on a dime but with the stability of a 50 footer. One of the joys of owning a great boat is the ability to share it with family and friends. A J145 is just as happy on the two-week family cruise, as it is sprinting around the buoys or daysailing in the bay.
For more information contact Dave Millett at Denison Yachting. 954-763-3971
Specs
- Designer
- Rod Johnstone
- Builder
- J Boats
- Associations
- ?
- # Built
- 18
- Hull
- Monohull
- Keel
- Fin + Bulb
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 47′ 11″ / 14.6 m
- Waterline Length
- 42′ 5″ / 13 m
- Beam
- 12′ 11″ / 4 m
- Draft
- 8′ 0″ / 2.4 m
- Displacement
- 19,000 lb / 8,618 kg
- Ballast
- 8,350 lb / 3,787 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 1,164′² / 108.1 m²
- Total Sail Area
- 1,164′² / 108.1 m²
Mainsail
- Sail Area
- 597′² / 55.5 m²
- P
- 58′ 2″ / 17.8 m
- E
- 20′ 6″ / 6.3 m
- Air Draft
- ?
Foresail
- Sail Area
- 567′² / 52.7 m²
- I
- 62′ 11″ / 19.2 m
- J
- 18′ 0″ / 5.5 m
- Forestay Length
- 65′ 6″ / 20 m
Spinnaker
- SPL/TPS
- ?
- ISP
- 64′ 11″ / 19.8 m
Auxilary Power
- Make
- Yanmar
- Model
- 4JH3CE
- HP
- 56
- Fuel Type
- Diesel
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 3
Calculations
- Hull Speed
-
12.5 kn
Classic: 8.73 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
- Sail Area/Displacement
-
26.2
>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.
- Ballast/Displacement
-
43.9
>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
- Displacement/Length
-
110.6
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
- Comfort Ratio
-
21.7
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
- Capsize Screening
-
2.0
<2.0: better suited for ocean passages
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
Notes
Shallow draft: 7.5’.
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