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{{Short description|Keelboat designed by George Olson}}
{{Short description|Sailboat class}}
{{Use dmy dates|date=August 2021}}
{{Infobox Sailboat Specifications
{{Use American English|date=August 2021}}
|name = Moore 24
{{Infobox sailboat specifications
|image =
|caption =
|name = Moore 24
|insignia = File:Moore 24 sail badge.png
|class_image =
|crew = 3 – 5
|insignia size = 96px
|type = [[Monohull]]
|insignia alt =
|insignia caption =
|design = [[One-Design]]
|line drawing =
|construction = [[Fiberglass|GRP]]
|rig = [[Fractional rig]]
|line size =
|keel = Fixed
|line alt =
|line caption =
|loa = {{convert|23|ft|9|in|abbr=on}}
|image boat = File:SCYC SCORE-Moore 24 Regatta, April 2014.jpg
|lwl = {{convert|21|ft|9|in|abbr=on}}
|beam = {{convert|6|ft|8|in|abbr=on}}
|image size =
|draft =
|image alt =
|image caption =
|hull = {{convert|2050|lb|abbr=on}}

|d-pn =
|rya-pn =
|designer = George Olson and Ron Moore
|phrf =
|architect =
|year = 1972–1988
|location = [[United States]]
|designer = George Olson/Ron Moore
|year = 1972
|updated = 03/02/2013
|no built = 156
|olympic = no
|design =
|class =
|brand =
|builder = [[Moore Sailboats]]
|role =

|boats =
|crew =
|trapeze =
|draft = {{convert|4.08|ft|m|abbr=on}}
|air draft =
|displacement = {{convert|2050|lb|kg|0|abbr=on}}

|hulls =
|hull type = [[monohull]]
|construction = [[fiberglass]]
|loa = {{convert|23.75|ft|m|abbr=on}}
|loh =
|lwl = {{convert|21.75|ft|m|abbr=on}}
|beam = {{convert|7.17|ft|m|abbr=on}}
|hull draft =
|hull weight =
|engine = [[outboard motor]]

|appendages =
|keel type = fin keel
|ballast = {{convert|1000|lb|kg|0|abbr=on}}
|rudder type = internally-mounted spade-type [[rudder]]

|rigs =
|rig type = [[Bermuda rig]]
|I = {{convert|26.25|ft|m|abbr=on}}
|J = {{convert|9.75|ft|m|abbr=on}}
|P = {{convert|25.00|ft|m|abbr=on}}
|E = {{convert|9.50|ft|m|abbr=on}}
|mast length =
|rig other =

|sails =
|sailplan = [[fractional rig]]ged [[sloop]]
|sailarea main = {{convert|118.75|sqft|m2|abbr=on}}
|sailarea headsail = {{convert|127.97|sqft|m2|abbr=on}}
|sailarea spin =
|sailarea gen =
|sails other =
|sailarea upwind =
|sailarea downwind =
|sailarea total = {{convert|246.72|sqft|m2|abbr=on}}

|rating =
|d-pn =
|rya-pn =
|phrf = 156

|status =
|previous =
|successor =
}}
}}


The '''Moore 24''' is an [[United States|American]] [[Trailer sailer|trailerable]] [[sailboat]] that was designed by George Olson and Ron Moore as a [[Sailing (sport)|racer]] and first built in 1972.<ref name="Data">{{cite web|url= https://sailboatdata.com/sailboat/moore-24|title= Moore 24 sailboat |access-date= 18 August 2021|last= McArthur| first= Bruce |work= sailboatdata.com|year= 2020|archive-url= https://archive.today/2FkQ0|archive-date= 18 August 2021|url-status= live}}</ref><ref>{{cite web|url= https://sailboatdata.com/designer/olson-george|title= George Olson 1946 - 2015|access-date = 18 August 2021|last= McArthur| first = Bruce |work = sailboatdata.com|year = 2021|archive-url= https://archive.today/3HZRH|archive-date= 18 August 2021|url-status= live}}</ref><ref name="Henkel">Henkel, Steve: ''The Sailor's Book of Small Cruising Sailboats'', page 261. [[International Marine]]/[[McGraw-Hill]], 2010. {{ISBN|978-0-07-163652-0}}</ref>
The '''Moore 24''' is a [[keelboat]] designed by [[Santa Cruz, California]] surfer/sailor, [[George Olson]]. It is one of the first [[ULDB|ultralight displacement sailboats]], entering production in 1972. This design, along with the [[Santa Cruz 27]] and [[Olson 30]], changed the world of performance sailing with their breakaway downwind speed. Rumor has it that George Olson was going to abandon the mold to the prototype Moore 24, ''Grendel'', with a wild ride down a hill (in the mold of course) when it was rescued by Ron Moore and put into production. To improve on the sailing characteristics of ''Grendel'', Moore used jacks to pry apart the original narrow-beam hull tooling, increasing the maximum beam by about one foot to 6'8". This resulted in the characteristic asymmetry of the Moore 24, where one half of the boat is about 2½" wider than the other. Despite this irregularity, Moore 24s appear to sail similarly on each tack.


==Production==
This [[fiberglass]] [[sloop]] is used primarily for [[racing]] and fast daysailing. In June 1975, the second hull out of the mold was sailed from Santa Cruz to Honolulu by David Ingalls and Jan Lippen-Holtz in 17 days, thus demonstrating its speed and seaworthiness. In the 1980 Singlehanded Transpac, three yellow Moore 24s were entered in the biennial race from San Francisco to Hanalei Bay, Kauai, Hawaii, sailed by Lester Robertson, Bob Boyes, and Chuck Hawley. It is said that, under the right set of conditions, a Moore 24 could beat a Transpac 52 to Hawaii, although that set of conditions ranks 3 standard deviations away from the mean.
The design is built by [[Moore Sailboats]] in the [[United States]]. The company built 156 boats between 1972 and 1988, and it remains in production.<ref name="Data"/><ref name="Henkel"/><ref>{{cite web|url = https://sailboatdata.com/builder/moore-sailboats|title = Moore Sailboats|access-date = 18 August 2021|last= McArthur| first = Bruce |work = sailboatdata.com|year = 2021|archive-url= https://archive.today/99OxO|archive-date= 18 August 2021|url-status= live}}</ref><ref name="Official">{{cite web|url= https://www.mooresailboats.com/moore-24/|title= Moore 24|access-date= 18 August 2021|author= Moore Sailboats|work= mooresailboats.com|archive-url= https://archive.today/MtwdU|archive-date= 18 August 2021|url-status= live}}</ref>


==Design==
The Moore won the 1992 Pacific Cup, a race from San Francisco to Oahu, overall, as well as division and double-handed class. It has also won class firsts in other Pac Cups. In 2016 the Moore 24 Mas! won the Pacific Cup overall double handed by Mark English and Ian Rogers. The two set a new course record for the Moore 24 of 10 days 14 hours and 30 minutes with a 240 mile best 24 hour run.
The Moore 24 is a development of ''Grendal'', a prototype sailboat that was intended for a [[TransPac]] race for boats under {{convert|30|ft|m|abbr=on}} in length. That race was never held, but ''Grendal'' went on to win the 1970 [[Midget Ocean Racing Class]] (MORC) championships. ''Grendal'' had a beam of under {{convert|6|ft|m|abbr=on}}, but the production boat was given a wider beam of {{convert|7.17|ft|m|abbr=on}}. The Moore 24 also received a raised deck to increased headroom below, a relocated keel and a new sail plan. Development has continued though the production period of the boat.<ref name="Henkel"/>


The Moore 24 is a racing [[keelboat]], built predominantly of [[fiberglass]], with wood trim. It has a [[Fractional rig|fractional]] [[sloop]] rig, a [[raked stem]], a [[reverse transom]], an internally mounted spade-type [[rudder]] controlled by a [[tiller]] and a fixed fin [[keel]]. It displaces {{convert|2050|lb|kg|0|abbr=on}} and carries {{convert|1000|lb|kg|0|abbr=on}} of ballast, giving it a high ballast-displacement of 48.78%.<ref name="Data"/><ref name="Henkel"/>
== Construction ==


The boat has a draft of {{convert|4.08|ft|m|abbr=on}} with the standard keel.<ref name="Data"/><ref name="Henkel"/>
The Moore 24 is constructed of vacuum-bagged fiberglass and balsa composite hull and deck structure with a Bruynzeel plywood interior. Of particular interest is the main bulkhead, which has a circular passage allowing access to the forepeak. The original hulls were partially cored in the bow and aft central portion of the hull. Later models had a complete balsa-cored hull. There are two quarterberths aft, and the forepeak can be outfitted with cushions to create a small double berth. The keel is constructed out of 1,050 [[pounds (mass)|lbs]] (477 kg) of lead, covered in resin and gelcoat, producing an appendage that flows seamlessly from the hull. While bolted in place, the keel is not easily removed. The rudder is a fiberglass and foam sandwich with an aluminum rudder shaft. The precision of the finishing of the rudder and keel is a testament to the skill with which these boats were built.


The boat is normally fitted with a small {{convert|2|to|4|hp|kW|0|abbr=on}} [[outboard motor]] for docking and maneuvering.<ref name="Data"/><ref name="Henkel"/>
The hull has a few design themes which make it stand out in appearance. The bow has a slight hollow, and the side view shows a reversed sheerline which maximizes interior space (such as it is). The original version had a flush deck with a small footwell for a cockpit with no coamings or seatbacks. In the late 1980s a "Sport" model was introduced with a low-profile wedge deck. Four Sport models were purchased by the [[University of California, Santa Cruz]] Sailing Program as one-design trainers.


The design has sleeping accommodation for two people. Cabin headroom is {{convert|42|in|cm|0|abbr=on}}.<ref name="Data"/><ref name="Henkel"/>
The aluminum mast has a single set of spreaders, and is supported by 1x19 standing rigging. Originally the boats had double lower shrouds, but many have been converted to single lowers to allow the mast to bend more when racing. The rig is described as 15/16ths, meaning that the jibstay attaches about 18" below the masthead. This increases the power of the adjustable backstay to control the bend of the mast, and therefore the fullness of the mainsail. While the mast and boom were sourced from a number of companies, most of the later boats had spars from Ballenger Spars [http://www.ballengerspars.com/], a local sparbuilder.


The design has a [[Performance Handicap Racing Fleet|PHRF]] racing average handicap of 156 and a [[hull speed]] of {{convert|6.2|kn|km/h|abbr=on}}.<ref name="Henkel"/>
Approximately 160 Moore 24s have been built.


==Operational history==
The [[Express 27]] was greatly influenced by the Moore 24.
The boat is supported by an active class club that organizes racing events, the ''Moore 24 National Association''.<ref>{{cite web|url= https://sailboatdata.com/association/moore-24-racing-class-assoc|title= Moore 24 Racing (Class Assoc.)|access-date = 18 August 2021|last= McArthur| first = Bruce |work = sailboatdata.com|year = 2021|archive-url= https://archive.today/6PYTM|archive-date= 18 August 2021|url-status= live}}</ref>

In a 2010 review Steve Henkel wrote, "Best features: She's fast in heavy air; the high (50%) B/D ratio helps to keep the Moore 24 on her feet. Worst features: Due to her light weight and cramped cabin space, almost no one would want to buy this design as a cruising boat.�"<ref name="Henkel"/>

==See also==
*[[List of sailing boat types]]

==References==
{{Reflist}}


==External links==
==External links==
{{Commons category}}
*[http://moore24.org/ Moore 24 class website]
*{{Official website|https://www.mooresailboats.com/moore-24/}}
*[https://web.archive.org/web/20041204164010/http://moore24.org/moore/boatOfMonth.html History of the class up to 1990]
*[http://www.express27.org/h/?u=history Express 27 influenced by Moore 24 design]
*[https://www.youtube.com/watch?v=mLYDq4PEJRM Surfing a Moore 24]
*[https://www.youtube.com/watch?v=ZmoxShnB0yY Tour of a Moore 24]
*[http://www.mooresailboats.com]


{{Trailer sailers and Trailer yachts worldwide}}
[[Category:Sailing yachts]]

[[Category:Keelboats]]
[[Category:1970s sailboat type designs]]
[[Category:1970s sailboat type designs]]
[[Category:Sailing yachts]]
[[Category:Trailer sailers]]
[[Category:Sailboat types built in the United States]]
[[Category:Sailboat type designs by American designers]]
[[Category:Sailboat types built by Moore Sailboats]]

Revision as of 22:31, 18 August 2021

Moore 24
Development
DesignerGeorge Olson and Ron Moore
LocationUnited States
Year1972
No. built156
Builder(s)Moore Sailboats
NameMoore 24
Boat
Displacement2,050 lb (930 kg)
Draft4.08 ft (1.24 m)
Hull
Typemonohull
Constructionfiberglass
LOA23.75 ft (7.24 m)
LWL21.75 ft (6.63 m)
Beam7.17 ft (2.19 m)
Engine typeoutboard motor
Hull appendages
Keel/board typefin keel
Ballast1,000 lb (454 kg)
Rudder(s)internally-mounted spade-type rudder
Rig
Rig typeBermuda rig
I foretriangle height26.25 ft (8.00 m)
J foretriangle base9.75 ft (2.97 m)
P mainsail luff25.00 ft (7.62 m)
E mainsail foot9.50 ft (2.90 m)
Sails
Sailplanfractional rigged sloop
Mainsail area118.75 sq ft (11.032 m2)
Jib/genoa area127.97 sq ft (11.889 m2)
Total sail area246.72 sq ft (22.921 m2)
Racing
PHRF156
[edit on Wikidata]

The Moore 24 is an American trailerable sailboat that was designed by George Olson and Ron Moore as a racer and first built in 1972.[1][2][3]

Production

The design is built by Moore Sailboats in the United States. The company built 156 boats between 1972 and 1988, and it remains in production.[1][3][4][5]

Design

The Moore 24 is a development of Grendal, a prototype sailboat that was intended for a TransPac race for boats under 30 ft (9.1 m) in length. That race was never held, but Grendal went on to win the 1970 Midget Ocean Racing Class (MORC) championships. Grendal had a beam of under 6 ft (1.8 m), but the production boat was given a wider beam of 7.17 ft (2.19 m). The Moore 24 also received a raised deck to increased headroom below, a relocated keel and a new sail plan. Development has continued though the production period of the boat.[3]

The Moore 24 is a racing keelboat, built predominantly of fiberglass, with wood trim. It has a fractional sloop rig, a raked stem, a reverse transom, an internally mounted spade-type rudder controlled by a tiller and a fixed fin keel. It displaces 2,050 lb (930 kg) and carries 1,000 lb (454 kg) of ballast, giving it a high ballast-displacement of 48.78%.[1][3]

The boat has a draft of 4.08 ft (1.24 m) with the standard keel.[1][3]

The boat is normally fitted with a small 2 to 4 hp (1 to 3 kW) outboard motor for docking and maneuvering.[1][3]

The design has sleeping accommodation for two people. Cabin headroom is 42 in (107 cm).[1][3]

The design has a PHRF racing average handicap of 156 and a hull speed of 6.2 kn (11.5 km/h).[3]

Operational history

The boat is supported by an active class club that organizes racing events, the Moore 24 National Association.[6]

In a 2010 review Steve Henkel wrote, "Best features: She's fast in heavy air; the high (50%) B/D ratio helps to keep the Moore 24 on her feet. Worst features: Due to her light weight and cramped cabin space, almost no one would want to buy this design as a cruising boat.�"[3]

See also

References

  1. ^ a b c d e f McArthur, Bruce (2020). "Moore 24 sailboat". sailboatdata.com. Archived from the original on 18 August 2021. Retrieved 18 August 2021.
  2. ^ McArthur, Bruce (2021). "George Olson 1946 - 2015". sailboatdata.com. Archived from the original on 18 August 2021. Retrieved 18 August 2021.
  3. ^ a b c d e f g h i Henkel, Steve: The Sailor's Book of Small Cruising Sailboats, page 261. International Marine/McGraw-Hill, 2010. ISBN 978-0-07-163652-0
  4. ^ McArthur, Bruce (2021). "Moore Sailboats". sailboatdata.com. Archived from the original on 18 August 2021. Retrieved 18 August 2021.
  5. ^ Moore Sailboats. "Moore 24". mooresailboats.com. Archived from the original on 18 August 2021. Retrieved 18 August 2021.
  6. ^ McArthur, Bruce (2021). "Moore 24 Racing (Class Assoc.)". sailboatdata.com. Archived from the original on 18 August 2021. Retrieved 18 August 2021.
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