Seller's Description
The 1979 Kelly Peterson Formosa 46 is a classic sailing yacht that holds a special place in the hearts of sailing enthusiasts. This offshore cruising vessel was designed by renowned naval architect Doug Peterson and built by the Formosa Boat Building Company in Taiwan during the heyday of the cruising sailboat industry.
With a length overall of 46 feet and a beam of 13.3 feet, the Kelly Peterson Formosa 46 boasts a robust and seaworthy design. Its full-keel configuration and heavy displacement contribute to its stability and ability to handle various weather conditions. The hull is constructed of fiberglass, known for its durability and low maintenance requirements.
One of the distinguishing features of the Kelly Peterson Formosa 46 is its timeless and elegant lines. The boat’s traditional sheer line, graceful overhangs, and teak accents on the deck and cabin contribute to its classic appearance. The raised aft deck and low-slung cabin house give it a distinctive profile that stands out in any marina or anchorage.
The interior of the Kelly Peterson Formosa 46 is designed with comfort and livability in mind. It features a spacious main salon with a dining area, a well-equipped galley, and ample storage space throughout. The layout includes three private cabins, providing accommodation for a small crew or a family. The warm teak joinery and traditional finishes create a cozy and inviting atmosphere below decks.
On deck, the Kelly Peterson Formosa 46 offers a spacious cockpit that provides a secure and comfortable area for sailing and socializing. The wide side decks and high bulwarks make moving around the boat safe and easy, and the well-protected cockpit provides excellent visibility for the helmsperson. The sail plan consists of a cutter rig with a mainmast positioned aft and a shorter mast forward, allowing for versatile sail configurations to suit different wind conditions.
Although the Kelly Peterson Formosa 46 was produced during the late 1970s and early 1980s, its classic design and timeless appeal have ensured its enduring popularity among cruising sailors. It remains a cherished choice for those seeking a comfortable and reliable yacht capable of taking them on memorable voyages around the world.
Specs
- Designer
- Doug Peterson (unauthorized)
- Builders
- Ta Chiao
- Formosa Boat Building Co. Ltd.
- Association
- Kelley-Peterson 44 Cutter Web Site
- # Built
- ?
- Hull
- Monohull
- Keel
- Fin
- Rudder
- Skeg
- Construction
- FG
Dimensions
- Length Overall
- 45′ 0″ / 13.7 m
- Waterline Length
- 39′ 6″ / 12.1 m
- Beam
- 12′ 11″ / 3.9 m
- Draft
- 6′ 5″ / 2 m
- Displacement
- 33,000 lb / 14,969 kg
- Ballast
- 10,000 lb / 4,536 kg
Rig and Sails
- Type
- Cutter
- Reported Sail Area
- 911′² / 84.6 m²
- Total Sail Area
- 911′² / 84.6 m²
Mainsail
- Sail Area
- 399′² / 37.1 m²
- P
- 47′ 0″ / 14.3 m
- E
- 16′ 11″ / 5.2 m
- Air Draft
- ?
Foresail
- Sail Area
- 512′² / 47.5 m²
- I
- 52′ 11″ / 16.2 m
- J
- 19′ 3″ / 5.9 m
- Forestay Length
- 56′ 4″ / 17.2 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
9.5 kn
Classic: 8.43 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
-
14.2
<16: under powered
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
-
30.3
<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
-
237.8
200-300: moderate
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
-
40.7
40-50: heavy bluewater 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
-
1.6
<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
Yet another altered version of the KELLY-PETERSON 44 (PETERSON 44 CUTTER), first offered in 1976.
(Often, as in this case, with out the payment of design royalties.)
To make the boat longer, it is said that builders simply added an incremental distance between each station on the original plans.
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