The O’Day 28 sailboat was designed by C. Raymond Hunt Associates and produced in 1978. The O’Day Corp constructed the boat in the United States from 1978 to 1986, building 507. A small recreational boat, the O’Day 28 was made primarily of fiberglass and accented with wood trim. Its features included an internally mounted spade-type rudder controlled with a wheel, a masthead rig (a rig with more headsails and a smaller mainsail), and a centerboard.
The boat weighed 7,300 pounds (3,311kg) and could hold 2,550 pounds (1,157 kilograms) of water. It started to have a displacement of 7,450 pounds (3,379 kilograms), beginning with the serial number 323, which was constructed in 1980 with a slight difference in the length of the vessel-part submerged in water ( also known as the waterline length), which consequently affects hull speed. Hull speed is calculated by multiplying 1.34 by the square root, in feet, of the waterline length. The previous designs gave the boats a hull speed of 6.42 knots (11.89 km/h), while the hull speed of designs with serial numbers beginning with 323 was 6.39 knots (11.83 km/h).
The version of the boat with a centerboard had a draft (the distance the hull contains when submerged) of 6.83 feet (2.08 m) when the centerboard was extended and 3.25 feet (0.99 m) when the centerboard was retracted, allowing for ground transportation on a trailer or hauling up the boat to the beach. The version of the ship with a keel had a draft of 4.50 feet (1.37 m). A shorter draft keel type with a 3.67-foot (1.12 m) draft eventually replaced the centerboard variant. Later on, the manufacturer constructed a longer keel version with 4.67 feet (1.42 m) draft.
A tall mast version was also available, 2.00 feet (0.61 m) increase in height. A Universal 12 10-hp (7 kW) diesel engine powers the boat. The fuel tank had a capacity of 18 US gallons (68 L; 15 imp gal), while the freshwater tank could hold 25 US gallons (95 L; 21 imp gal).
Many Universal engines have a common issue of frequently missing impeller vanes or rotating blades. Unfortunately, many owners replace them without even inquiring as to where they go. Naturally, they go downstream and obstruct parts of the cooling system. The trick is to apply fluid force in the opposite direction on a dozen of them whenever the engine is hot, and you may never have to replace them. The technique is known as backflushing.
The O’Day 28 is built like a custom boat with all main metal parts having a solid copper wire system, similar to a Hinkley. The O’Day 28 is acclaimed as one of the all-time racing sleepers – a highly stable boat. It has excellent wheel steering and does not require extravagant staffing to sail. The remarkably long rudder gives a superior steering response and rarely breaks.
The boat moves like a rocket in zero wind conditions and winds over 15 knots at an impressive pace. Unlike the Catalina 30, the O’Day 28 does not need you to steer the wheel constantly; all you need to do is point and go. The boat remains dry, floating on the water with minimal rocky movements. When compared to the Catalina 27, the motion is smoother, making seasickness unlikely. It has an excellent layout with generous space in the cabin area. You could easily relax and enjoy a book as comfortably as in your home.
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