Specifications Aloha 28 (8.5)


Please Note, during the lengthy production runs of the A27 (8.2) and A28 (8.5), Ouyang Boatworks used a number of different mast and sail suppliers and specifications with differing mast and boom lengths. We are not aware of similar variations in the A30 and A32 models, but it is always possible. With this in mind, please do not rely on the measurements provided if you have to pass under an overhead obstruction (eg bridge or powerlines) where clearance will be limited, when ordering sails or establishing a racing handicap. If you require accurate numbers for any of these purposes we strongly recommend you measure your actual boat and we accept no responsibility for the consequences of any inaccuracies in the quoted figures, or in variations applying to your boat.

General Hull Specs Aloha 8.5
BuilderOuyang Boat Works
LocationWhitby, Ontario
YearApprox 1973 - 1988
DesignerTed Brewer & Robert Wallstrom
Displacement6750 lbs
Ballast2750 lbs
ConstructionFibreglass hull and deck
Fuel Tank Capacity12 gals (US)
Fill locationPort side
Fresh Water Capacity30 gals (US)
Holding Tank Capacity24 gals (US)
Length Overall28' (8.5 meters)
Length Waterline24' 6"
Beam9' 5"
Draft4' 4"
Bridge Clearance Height (approx)44' 0" (Tall Rig)
Mast StepDeck
Keel TypeFixed Fin Encapsulated Ballast
Main Sail168 sq. ft. P 32.00'
Jib169 sq. ft. E 10.50'
Genoa 150%328 sq. ft. I 37.00'
Spinnaker 180%395 sq. ft. J 12.25'
Engine TypeInboard Diesel
Number of cylinders2
HorsePower11 or 13
Inboard MakeUniversal 5411 or Westerbeke
Cooling systemRaw water cooled or Fresh water cooled
Prop shaft size1 inch
Aloha 28 (8.5) Ratings & Ratios
PHRF Rating
No Flying Sails201
With Spinnaker183
Displacement/Waterline Length (D/L)205
Sail Area/Displacement (SA/D)17.7
Ballast Ratio (BR)41%
Theoretical Hull Speed (HSPD)6.63 knots
Joomla 1.5 Templates by Joomlashack