Cal 39

{{Short description|Sailboat class}}

{{Use dmy dates|date=March 2020}}

{{Use American English|date=March 2020}}

{{Infobox sailboat specifications

|name = Cal 39

|class_image = File:Cal 39 Logo.png

|line drawing =

|line size =

|line alt =

|line caption =

|image boat =

|image size =

|image alt =

|image caption =

|designer = C. William Lapworth

|location = United States

|year = 1970

|no built = 29

|design =

|class =

|brand =

|builder = Jensen Marine/Cal Yachts

|role = Racer-Cruiser

|boats =

|crew =

|trapeze =

|draft = {{convert|6.00|ft|m|abbr=on}}

|air draft =

|displacement = {{convert|14600|lb|kg|0|abbr=on}}

|hulls =

|hull type = Monohull

|construction = Fiberglass

|loa = {{convert|38.69|ft|m|abbr=on}}

|loh =

|lwl = {{convert|31.25|ft|m|abbr=on}}

|beam = {{convert|11.67|ft|m|abbr=on}}

|hull draft =

|hull weight =

|engine = Perkins Engines 4108 diesel engine

|appendages =

|keel type = fin keel

|ballast = {{convert|6600|lb|kg|0|abbr=on}}

|rudder type = skeg-mounted rudder

|rigs =

|rig type = Bermuda rig

|I = {{convert|50.00|ft|m|abbr=on}}

|J = {{convert|17.00|ft|m|abbr=on}}

|P = {{convert|41.75|ft|m|abbr=on}}

|E = {{convert|15.00|ft|m|abbr=on}}

|mast length =

|rig other =

|sails =

|sailplan = Masthead sloop

|sailarea main = {{convert|313.13|sqft|m2|abbr=on}}

|sailarea headsail = {{convert|425.00|sqft|m2|abbr=on}}

|lp =

|sailarea spin =

|sailarea gen =

|sails other =

|sailarea upwind =

|sailarea downwind =

|sailarea total = {{convert|738.13|sqft|m2|abbr=on}}

|rating =

|d-pn =

|rya-pn =

|phrf =

|status =

|previous =

|successor =Cal 39 Mark II

}}

The Cal 39 is an American sailboat that was designed by C. William Lapworth as a racer-cruiser and first built in 1970. The boat was introduced just before the adoption of the International Offshore Rule (IOR) for racing and, as a consequence of not meeting that rule, saw low sales numbers. It was not in production long and was replaced by the Cal 39 Mark II.{{cite web|url = https://sailboatdata.com/sailboat/cal-39|title = Cal 39 sailboat |access-date = 21 March 2020|last= McArthur| first = Bruce |work = sailboatdata.com|year = 2020|archiveurl = https://web.archive.org/web/20190529174102/https://sailboatdata.com/sailboat/cal-39|archivedate =29 May 2019|url-status= live}}{{cite web|url =https://sailboatdata.com/designer/lapworth-c-william|title = C. William Lapworth|access-date = 21 March 2020|last= McArthur| first = Bruce |work = sailboatdata.com|year = 2020|archiveurl = https://web.archive.org/web/20190930062148/https://sailboatdata.com/designer/lapworth-c-william|archivedate = 30 September 2019|url-status= live}}Sherwood, Richard M.: A Field Guide to Sailboats of North America, Second Edition, pages 330-331. Houghton Mifflin Company, 1994. {{ISBN|0-395-65239-1}}{{cite web|url = https://sailboatdata.com/sailboat/cal-39-mk-ii-1-147|title = Cal 39 Mk II sailboat |access-date = 21 March 2020|last= McArthur| first = Bruce |work = sailboatdata.com|year = 2020|archiveurl = https://web.archive.org/web/20190602072013/https://sailboatdata.com/sailboat/cal-39-mk-ii-1-147|archivedate =2 June 2019|url-status= live}}