Tempest 23

The O'Day Corp. Tempest 23 was a masthead rig keelboat sloop model designed in 1962 by Philip Rhodes,[2] who designed Weatherly (USA-17), which won the America's Cup in 1962.[3] The production run lasted from 1962[4] to 1968 with 390 hulls produced.[1]

Tempest 23
Development
DesignerPhilip Rhodes
Year1963
Boat
Draft3.67 feet (1.12 m)
Hull
TypeMonohull
ConstructionFiberglass
Hull weight3,000 pounds (1,400 kg)
LOA23.17 feet (7.06 m)
Beam7.67 feet (2.34 m)
Hull appendages
Keel/board typeKeel
1,250 pounds (570 kg)[1]
Rig
I (foretriangle height)26.5 feet (8.1 m)
J (foretriangle base)8.4 feet (2.6 m)
P (mainsail luff)23 feet (7.0 m)
E (mainsail foot)10 feet (3.0 m)
Mast length26.15 feet (7.97 m)
Sails
Mainsail area115.00 square feet (10.684 m2)
Jib/genoa area113.10 square feet (10.507 m2)
Spinnaker area339.00 square feet (31.494 m2)
Upwind sail area228.10 square feet (21.191 m2)
Racing
D-PN96.6
PHRF273

Design

At 3000 lbs it included a 1250 lbs cast iron keel. Tempest 23 came standard with eight foot (8') Self-bailing cockpit, self-draining seats with storage, molded insulated ice box, Philippine mahogany trim, deck stepped mast, main roller reefing, full width mainsheet traveler, wirehalyards, two jib winches, separate galley and head enclosures, two (2) 6'6" berths with storage, and a 2-year warranty.[5] The sail plan consisted of a 115.00 sq. ft. mainsail, 113.10 sq. ft. jib and 339.00 sq. ft. spinnaker.[6] It can be sailed with a Tri-radial headsail.[7]

Specifications
Sail Area Calculations
Rig DimensionsMeasurement[6]
I measurement26.5 feet (8.1 m)
J measurement8.4 feet (2.6 m)
P23 feet (7.0 m)
E10 feet (3.0 m)
ISP26.5 feet (8.1 m)
JSP8.4 feet (2.6 m)
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See also

References
  1. "Tempest 23 (O'Day)". SailboatData.Com. Retrieved 26 September 2013.
  2. "Philip L. Rhodes Fiberglass Cruising Sailboats". Temple University. Retrieved December 6, 2013.
  3. Ben Stavis. "Analytical Biography". Temple University archive.Retrieved on 08-10-09
  4. "O'Day Corp. 1958-1989". SailboatData.Com. Retrieved December 5, 2013.
  5. "O'Day Tempest Sailboat Standard Features and Specifications (1967)". Gjenvick-Gjønvik Archives. Retrieved 26 September 2013.
  6. "Dimensions of Tempest 23 (o\'day)". L-36.com. Retrieved 26 September 2013.
  7. "O'DAY 23 Tempest Tri-Radial Headsail (6.5 oz. Radial Weave Dacron)". Precision Sails. Retrieved December 6, 2013.

Further reading
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