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Seller's Description

SALE PENDING AS OF DEC. 1, 2023

The Hobie Open 5.70 boasts that they are unsinkable and impossible to capsize!

Here is an excellent example of a Hobie Open 570, made by Phileas of France.. Its retractable keel and low-rise, custom trailer makes this a launch it anywhere sailboat. Hobie Opens are similar to the Melges 20, Ultimate 20, Laser SB3, Lightning and Flying Scott. Marc Finot, of Beneteau First fame designed the Open 570. One exceptional modification is the Lewmar-40 self-tailing winch to raise/lower the ballasted keel from the cockpit. Just sit on the port gunwale and crank. This boats electronics and winch approximates a Beneteau First 20 for a fraction of the cost. All sails, including the spinnaker are hoisted and controlled from the safety of the cockpit.

SAILED IN FRESH WATER

NOTE: main photo is a stock image to see what she looks like while sailing. See equipment section for complete details. All other photos are actual of this Open 5.70 for sale in Florida.

Equipment: New Shrouds, Forestay, Furling Swivel and Turnbuckles 2021

Forestay upgraded with furling swivel for keel winch

Sails and Sheets (all in sail bags)

Spinnaker Racing Black - Excellent (Used twice)

Spinnaker Practice Blue - Good

Mainsail by UK Sails - Excellent Brand new still in shrink wrap

Mainsail with battens - Good - practice

JIb A Racing Condition Excellent

Jib Practice Good (brand new window)

Spinnaker retrieval deck bag (mesh)

Custom Deck tool bag (clips under Spinnaker retrieval bag)

Boom

Spinnaker Sheets Condition Fair

Main Sheet (6 purchase) - Good

Jib sheet and cars - Good

Sheet Bag (mesh)

(2) rudders in padded cases

Customized (removable motor bracket)

2 HP Honda 4-stroke outboard (needs a lower shaft seal and possibly a carburetor)

Custom slip on/off outboard motor bracket for stern. Does NOT interfere with traveler.

Rudder Tie rod assembly (New Flex Hinges)

Tiller extension adjustable length

(2) Dock Lines (bow and stern)

(2) floating winch handles

Waterproof gear box

Electronics:

-Custom fuse panel -Dual-isolated AGM batteries -Solar controller -Solar input receptacle, waterproof -100 watt flex solar panel -Dual (repeating) depth displays (view port or stbd tack) -Depth sounder mounted to inside hull in liquid filled cylinder -Storage cabin LED -LED navigation lights (bow and stern) -12v accessory receptacle -(2) USB charging ports -12V DC Accessory port -Panel mounted voltmeter check Battery 1, Bat 2 and solar -Waterproof cockpit switch panel -TackTick T060 Micro-Compass - New Rechargeable Battery

Rigging Tackle and Storage:

-Lewmar 40 self-tailing winch for lifting keel from in cockpit (awesome) -(2) Floating Winch handles -Neptunes Trident (Mast Stepper Assistant) -Mast base pin and nut -Carbon fiber mast collar -Stand alone Stainless Steel Keel/Winch system (Raise Keel if Mast is down) -Wedges, rubber hammer -Keel bolts, nuts, wrench kit -Keel lifting line and shackle -Velcro Cotter pins for shrouds (4)

Trailering on the Road:

-Spare Tire and Cover -Ratchet Straps (2) Boat to trailer -Torsion Axle -Pads for Mast -Turning Signal Light Bar LEDs -License Plate holder for Trailer -Keel bulb pad on trailer -Rubber hammer and wedges for keel

On-Site Trailer and Storage:

-Sunbrella Cover (truly custom, a pleasure) w 100w Solar Panel -Trailer Stern support with mast rest -Pads stowing mast -Small line/bungee ties -Ladder, cable, lock -Trailer tongue stacking plates -Trailer tire covers UV protection

Spare repair bits:

-Rudder hinges -Mini blocks -Cotter pins -Chafe tape -Batten tensioners -Ring dings, shackles

Specs

Designer
Jean Marie Finot (Groupe Finot)
Builders
Phileas Boats
Open Sailing Inc.
Associations
?
# Built
?
Hull
Monohull
Keel
Lifting
Rudder
?
Construction
FG

Dimensions

Length Overall
18 9 / 5.7 m
Waterline Length
18 9 / 5.7 m
Beam
8 4 / 2.5 m
Draft
0 7 / 0.2 m 5 8 / 1.8 m
Displacement
990 lb / 450 kg
Ballast
400 lb / 180 kg (Lead)

Rig and Sails

Type
Sloop
Reported Sail Area
289′² / 26.9 m²
Total Sail Area
208′² / 19.4 m²
Mainsail
Sail Area
130′² / 12.1 m²
P
25 3 / 7.7 m
E
10 2 / 3.1 m
Air Draft
?
Foresail
Sail Area
79′² / 7.3 m²
I
21 6 / 6.6 m
J
7 3 / 2.2 m
Forestay Length
22 8 / 6.9 m

Auxilary Power

Make
?
Model
?
HP
?
Fuel Type
?
Fuel Capacity
?
Engine Hours
?

Accomodations

Water Capacity
?
Holding Tank Capacity
?
Headroom
?
Cabins
?

Calculations

Hull Speed
9.7 kn
Classic: 5.8 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

9.68 knots
Classic formula: 5.8 knots
Sail Area/Displacement
46.5
>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.
46.49
<16: under powered
16-20: good performance
>20: high performance
Ballast/Displacement
40.0
>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

40.0
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
67.0
<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
67.01
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
4.8
<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
4.82
<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
3.3
>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
3.34
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Spin area: 378sf
2 draft settings: 1.75m/5.74’ or 1.45m/4.76’.

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