Seller's Description
Beautiful 1964 Tom Colvin Aluminum 38 FT Bluewater
Professionally built in 1964 by Kaiser Aluminum out of 3/16” series 5086 H-34 aluminum.
Hauled Out and Bottom Paint in 2019
Her Volvo Penta 28 Horsepower Fresh Water Cooled Engine Runs Great. Has 2 -35 Gallon Diesel Tanks Welded as Part of the Hull and 1-18 Gallon Day Tank
Galley Includes CNG 2 Burner Stove and Oven with Double Sink and Water Pressure Pump.
Electronics Garmin Chartplotter #7808sxv new in 2015 at $6000 Loran Forward and Sideview Depth Sounder. and VHF
Sails: Main and Mizzen are Fully Battened–Triple Stitched Re-Inforced Sails Capable of Around the World Sailing Main has 3 Reefs and Mizzen has One Reef Mack Pack Sail Covers Headsail with Alado Roller Furling NEW 2018
All Rigging has been Updated!
She is designed to handle the roughest seas and winds.
Garhauer Crane to Lift Outboard-Pad on Stern Pulpit for O/B Storage
Lofrans Electric Windlass with Remote and 150’ of 1/4 Chain–45 LB CQR Type and Never Used 66 LB Bruce Type
Dinghy included: No Engine
Specs
- Designer
- Thomas Gillmer
- Builder
- Blue Water/Holden Laminates (USA)
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Long
- Rudder
- Transom hung
- Construction
- FG
Dimensions
- Length Overall
- 24′ 0″ / 7.3 m
- Waterline Length
- 19′ 8″ / 6 m
- Beam
- 8′ 7″ / 2.6 m
- Draft
- 4′ 0″ / 1.2 m
- Displacement
- 7,950 lb / 3,606 kg
- Ballast
- 3,000 lb / 1,361 kg
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 276′² / 25.6 m²
- Total Sail Area
- ?
Mainsail
- Sail Area
- ?
- P
- ?
- E
- ?
- Air Draft
- ?
Foresail
- Sail Area
- ?
- I
- ?
- J
- ?
- Forestay Length
- ?
Auxilary Power
- Make
- Universal
- Model
- Atomic 4
- HP
- ?
- Fuel Type
- Gas
- Fuel Capacity
- 15 gal / 57 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 20 gal / 76 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
5.4 kn
Classic: 5.95 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
-
11.1
<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
-
37.7
<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
-
465.3
>400: very heavy
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
-
33.1
30-40: moderate bluewater cruising 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
-
1.7
<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
Holden Laminates was located at Annapolis, MD, USA
Articles appeared in ‘Yachting’ as well as ‘Boating’ magazine of 1962.
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