Seller's Description
In 1969 Cheoy Lee shipyard built this Offshore 40, yard number 2248. She is an “E” plan configuration which gives her plenty of room below with V-berth forward, a head and convertible dinette to port, with the chart table and two single berths to starboard.
The owner indicates her first owner was the Cheoy Lee dealer in Marina Del Rey, California who used her as a demonstration boat for the dealership. Her second owner maintained the boat and made many improvements to her as his liveaboard. The Seller purchased her in 1979 and has owned her for over forty-one years. She is an outstanding example of the Phil Rhodes design, Offshore 40 class.
The forward head has been enlarged with the enclosure of the forward door and has two dry lockers immediately adjacent.
The galley is on the port side with four burner propane stove and ice box. The interior was refurbished in 2013.
The engine aboard is the Perkin 40 hp. She carries 30 gallons of fuel, and 85 gallons of water.
She has 5 sails in her inventory. Mains: North battenless roller reefing main and batten main with three reef points.
Head Sails: Genoa 150 (hanked on sail bag), Working and Storm head sails.
Spruce Spinnaker 14 Ft, Dico Aluminum Spinnaker 12-22 Ft with bridle.
This beautiful Cheoy Lee is ready for new adventures. Are you the adventurous type?
The complete rebuild of the Perkins 104-7 engine was completed by S&W Diesel of Wilmington, CA in September 2023. The Borg Warner transmission has also been bench-tested with all external seals replaced by Tom Harpur of Chris Craft. All 2 1/2” wire-reinforced exhaust hoses have been replaced and the engine bay has been cleaned and refreshed. A full anti-siphon system has been added to the engine as well.
Specs
- Designer
- Philip Rhodes
- Builder
- Cheoy Lee Shipyard
- Association
- Cheoy Lee Association Web Site
- # Built
- 156
- Hull
- Monohull
- Keel
- Long
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 39′ 9″ / 12.1 m
- Waterline Length
- 27′ 11″ / 8.5 m
- Beam
- 10′ 9″ / 3.3 m
- Draft
- 6′ 0″ / 1.8 m
- Displacement
- 20,720 lb / 9,398 kg
- Ballast
- 7,900 lb / 3,583 kg (Iron)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 742′² / 68.9 m²
- Total Sail Area
- 743′² / 69.1 m²
Mainsail
- Sail Area
- 371′² / 34.5 m²
- P
- 41′ 2″ / 12.6 m
- E
- 18′ 0″ / 5.5 m
- Air Draft
- ?
Foresail
- Sail Area
- 372′² / 34.6 m²
- I
- 47′ 0″ / 14.3 m
- J
- 15′ 9″ / 4.8 m
- Forestay Length
- 49′ 7″ / 15.1 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- 30 gal / 114 l
- Engine Hours
- ?
Accomodations
- Water Capacity
- 100 gal / 379 l
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
6.7 kn
Classic: 7.09 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
-
15.7
<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
-
38.1
<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
-
422.0
>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
-
42.6
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
Also known as the EMPIRE 40 and a variant of the RHODES RELIANT 41, all from the same builder. The OFFSHORE/EMPIRE 40 was created in an effort to reduce costs of contruction and design royalties of the RHODES RELIANT. Although from the same basic tooling, the OFFSHORE 40 has iron instead of lead ballast, and differences in other construction details. Sold as a sloop or yawl.
In the mid 1970’s, Cheoy Lee Yard built another OFFSHORE 40 (variously designated as the OFFSHORE 4O MKII and then OFFSHORE 41), which was a different boat entirely and thought to be designed by Raymond Richards). See OFFSHORE 41.
(Variants of both the Rhodes and Richards design were at one time offered at one time or another under the names OFFSHORE 40 and OFFSHORE 41.)
Also offered with a yawl rig.
Photo from original Cheoy Lee literature.
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