Seller's Description
Selling my Hobie 18. I have owned this boat for 9 years and taken very good care of it. The 1989 hulls have zero soft spots and only minor dings. Read up on the Hobie Hulls and you’ll discover that 1989 and beyond are the desired hulls. It has the Hobie 1993 Fiesta Sail Pattern and sails are in good shape except a bit of fraying at the jib zipper and the Main Bolt. The tramp is 2 years old, it has EPO rudders, wings, new jib snorkel, tired but reliable homebuilt trailer that has gone from KY to FL 3 times. Bearings were changed when I got the trailer and the bearing buddies have stayed topped off. Trailer has storage box and sail tube. All the lines were replaced when I bought the boat and are still in great shape. I added a Hobie Bob to the mast to prevent turtle. It has all the trapeze cables (4) and one harness. It has standard and extended tillers. I have fat sacks for both hulls for storage and a tackle box of spares. The downhaul is 5:1, the jib furler was bought new when I got the boat and works fine. I also fabricated stainless rudder pins that are spring-loaded and can pop the rudders on/off in seconds; no need to remove the drain plug. I still have original rudder pins. I have Cat Trax beach wheels that need tires, but go with the deal. The boat is at Dale Hollow Lake and is Mast Up and ready to go. I sail it every Summer.
Specs
- Designer
- Hobie Alter
- Builder
- Hobie Cat
- Associations
- ?
- # Built
- ?
- Hull
- Catamaran
- Keel
- Twin Daggerboard
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 18′ 0″ / 5.5 m
- Waterline Length
- ?
- Beam
- 8′ 0″ / 2.4 m
- Draft
- 0′ 7″ / 0.2 m — 2′ 5″ / 0.8 m
- Displacement
- 400 lb / 181 kg
- Ballast
- ?
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 240′² / 22.3 m²
- Total Sail Area
- ?
Mainsail
- Sail Area
- ?
- P
- ?
- E
- ?
- Air Draft
- 27′ 11″ / 8.5 m
Foresail
- Sail Area
- ?
- I
- ?
- J
- ?
- Forestay Length
- ?
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
- ?
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
-
70.9
>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
- ?
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
- ?
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
- ?
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
-
4.4
>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
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