Seller's Description
2013 J/70 sailboat that has benefitted from exceptional care her entire life. The majority of her life was spent inside in a climate controlled warehouse. She was dry sailed only until the of 2022. She is a turn key boat capable of winning at any level as under previous owners she has won such events as Long Beach Race Week (CA). Much thought and expertise was applied to her for both her time on water and also on the road. Highlights include 100% North sails inventory-both regatta and club level quality sails. 3 Mains, 6 jibs and 3 spinnakers. Jib sock, mainsail cover-new in 2022, spin bag for companionway. 2 HP Honda outboard. Bags/covers-Deck cover, Hull cover, Keel cover, Rudder cover, Tiller cover, Mast Cover, Boom cover with insert pockets for spreaders, Hatch board bag, Standing rigging bag, companionway cover, padded lifeline covers and paddled mast base “Melges 24 style” cover. Trailer highlights-Triad Single axle keel down trailer (can be converted to ramp launch). Lockable diamond plate storage box, screen guard for keel, 2 ladders, one bow mounted on trailer and one moveable, 2 spare tires and Melges style mast carrier. New in 2022-Main Halyard, Jib Halyard, Lifelines, Backstay and Mainsail cover. Boat has soft deck in cockpit area and VC17 paint on bottom. Safety equipment (anchor, rode, chain, first aid kit, etc. is to class legal specs). Lifting straps, trailer tie down straps, keel lift (stored on trailer), fender and dock lines, winch covers and kelp stick for rudder. Begin a new adventure in 2023 whether it be one design, PHRF racing or day sailing in this excellent sailboat.
Equipment: 100% North Inventory, 12 total-see above for complete list.
Specs
- Designer
- Alan Johnstone
- Builder
- J Boats
- # Built
- 1100
- Hull
- Monohull
- Keel
- Fin
- Rudder
- Transom hung
- Construction
- FG
Dimensions
- Length Overall
- 22′ 11″ / 7 m
- Waterline Length
- 20′ 5″ / 6.2 m
- Beam
- 7′ 6″ / 2.3 m
- Draft
- 4′ 11″ / 1.5 m
- Displacement
- 1,790 lb / 812 kg
- Ballast
- 630 lb / 285 kg (Lead)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 226′² / 21 m²
- Total Sail Area
- 226′² / 21 m²
Mainsail
- Sail Area
- 123′² / 11.5 m²
- P
- 26′ 1″ / 8 m
- E
- 9′ 5″ / 2.9 m
- Air Draft
- ?
Foresail
- Sail Area
- 103′² / 9.6 m²
- I
- 26′ 9″ / 8.2 m
- J
- 7′ 8″ / 2.3 m
- Forestay Length
- 27′ 10″ / 8.5 m
Spinnaker
- SPL/TPS
- ?
- ISP
- 30′ 1″ / 9.2 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- 1
Calculations
- Hull Speed
-
9.1 kn
Classic: 6.06 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
-
24.5
>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
-
35.1
<40: less stiff, less 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
-
93.1
<100: Ultralight
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
-
9.1
<20: lightweight racing boat
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
-
2.4
>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
Notes
Spinnaker (asym.) area: 491 sq.ft./45 m²
More than 1100 delivered as of 2016.
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