Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.

We will occasionally send you relevant updates. You can opt out or contact us any time.
  • 1 / 16
  • 2 / 16
  • 3 / 16
  • 4 / 16
  • 5 / 16
  • 6 / 16
  • 7 / 16
  • 8 / 16
  • 9 / 16
  • 10 / 16
  • 11 / 16
  • 12 / 16
  • 13 / 16
  • 14 / 16
  • 15 / 16
  • 16 / 16

1984 O'Day 34

Listed
Expired
$19,980 USD

Seller's Description

O’Day 34 has nice accommodations and is a nice performer when under sail power ( compare to J 35 ). Very successful cruising design constructed of solid laminate of fiberglass and resin. Interior is of a fiberglass liner and supports the hull. Keel is cast iron and boat only goes in the water 3 month out of each year. This is a Northern boat transported in June 2021 and kept in a secure area for the next owner. The seller has a larger boat and does not want this boat neglected. Twilight has a Universal diesel (fuel tank and hot water heater are aft of the diesel). Dutchman Furling System, 150 & 125 Genoas, Main and 135 by Harding Sails in Marion, MA. 2010. All three sails maintained by Harding annually and in good condition, Whisker pole, Universal 5424 diesel in good condition, New motor mounts in 2017, New fresh water pump in 2017, New exhaust muffler and plumbing in 2019, New fuel tank in 2018.

Two Main sail covers, serviceable spray dodger, New Bimini, New custom cockpit awning for the sunnier days in anchorages.

Auto-Pilot, Refrigeration, 120 Volt System, Honda Generator, Battery Charger, shore cord 14 gauge, 100 feet.

New toilet and lines in 2014, upholstery in good condition, Standing rigging serviceable condition as is running rigging.

Hull in good condition, cockpit floor and steering 2018. This one has been maintained.

Advertisement

Specs

Designers
Raymond Hunt (C.R. Hunt & Assoc.)
John Deknatel
Builder
O'Day Corp.
Associations
?
# Built
241
Hull
Monohull
Keel
Fin
Rudder
Spade
Construction
FG

Dimensions

Length Overall
33′ 11″ / 10.4 m
Waterline Length
28′ 8″ / 8.8 m
Beam
12′ 11″ / 4 m
Draft
4′ 11″ / 1.5 m
Displacement
11,500 lb / 5,216 kg
Ballast
4,600 lb / 2,087 kg (Iron)

Rig and Sails

Type
Sloop
Reported Sail Area
524′² / 48.7 m²
Total Sail Area
524′² / 48.7 m²
Mainsail
Sail Area
223′² / 20.7 m²
P
37′ 11″ / 11.6 m
E
11′ 8″ / 3.6 m
Air Draft
?
Foresail
Sail Area
301′² / 28 m²
I
43′ 0″ / 13.1 m
J
14′ 0″ / 4.3 m
Forestay Length
45′ 2″ / 13.8 m

Auxilary Power

Make
Universal
Model
?
HP
24
Fuel Type
Diesel
Fuel Capacity
30 gal / 114 l
Engine Hours
?

Accomodations

Water Capacity
50 gal / 189 l
Holding Tank Capacity
?
Headroom
?
Cabins
1

Calculations

Hull Speed
8.3 kn
Classic: 7.18 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

8.32 knots
Classic formula: 7.18 knots
Sail Area/Displacement
16.5
16-20: good 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.
16.46
<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

40.01
<40: less stiff, less powerful
>40: stiffer, more powerful
Displacement/Length
216.3
200-275: 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
216.25
<100: ultralight
100-200: light
200-300: moderate
300-400: heavy
>400: very heavy
Comfort Ratio
23.2
20-30: coastal cruiser

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
23.16
<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
2.0
<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
1.99
<2: better suited for ocean passages
>2: better suited for coastal cruising

Notes

Became the O’DAY 35 in 1984 (with swim ladder on extended stern).
Shoal draft: 4.30’ / 1.31m
Tall rig: I: 45.83’ J: 14.0’ P: 40.75’ E: 13.67’
See O’DAY 35.

This listing is presented by SailboatListings.com. Visit their website for more information or to contact the seller.

View on SailboatListings.com

Advertisement
Embed

Embed

View Demo

Embed this page on your own website by copying and pasting this code.

Great choice! Your favorites are temporarily saved for this session. Sign in to save them permanently, access them on any device, and receive relevant alerts.

We will occasionally send you relevant updates. You can opt out or contact us any time.
Measurements:

©2024 Sea Time Tech, LLC

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.