Hello all,

I was looking through the scans I have of the Westsail Owners and Construction manuals and thought it might be useful to create a post with the various original and new sail dimensions and information. I would like information about any sail folks have found to work well!

Luff, leech, foot, area, material weight/type, notes from diagram or experience, designer.

If you have drawings or data for sails with question marks, please post the info or email it to me so that I may add it to the list. In addition, I have no diagrams for the W28, W39, W42, or W43. If you have sail information for those boats, please send it to me!

WESTSAIL 32

• Need original numbers for Main and stays'l
• Need numbers for Kern's short-foot main, and full batten/roach main
• Need numbers for Kern's Super Yankee everyone loves so much
  

Sail	Luff	Leech	Foot	Area (Ft/2)	Material Weight/Type	Notes	Designer
Main (original)	38'3"	15'10"	40'6"	311	8.5oz Dacron	Tack angle 88 degrees Roachless	Crealock
Main (Kern's revision)	38' 4"	39' 2"	14.6"	?	Dacron	2 reef points (my choice) 2 full battens Cunningham	Kern  2007  Pygmalion
Staysail	29'	25'6"	11'8"	149	8.5oz Dacron	?	Crealock
Genoa Staysail	23'	23'	15'6"	188	5oz Dacron		Crealock
Jib	35'2"	25'3"	15'8"	177	5oz Dacron		Crealock
Small Yankee	40'1"	28'8"	17'	210	6oz Dacron
Yankee Jib	43'	31'2"	18'4"	254	5 or 6 oz Dacron	Soft Dacron to be used if available	Crealock
Yankee Large	43'	37'	21'	400	6oz Dacron
Super Yankee (Kern's)	?	?	?	?	?	?
Genoa	43'9"	40'10"	22'	445	4oz Dacron		Crealock
Drifter	43'9"	38'7"	23'4"	450	1.75 or 2oz Dacron		Crealock
Reacher-Drifter	43'6"	39'9"	27'6"	535	2oz Dacron	Miter cut Leech and foot lines	Crealock
Reacher-Drifter Giant	43'2"	40'11'	31'6"	603	2 1/2 - 3oz (material?)	Material lighter at discretion of sailmaker	Crealock
Asymmetric Spinnaker	43'6"	?	?	950	.75oz Nylon	Foot/Leech unmeasured	Norlund (W32 Asia Marie)
Asymmetric Spinnaker	47'	29'	35'		.75oz Nylon	Estimated area	Wiencke (W32 Neverland)
Storm Trysail	17'8"	23'7"	11'5"	96	8 or 10oz Dacron	Soft weave Dacron to be used if available Corners heavily reinforced Extra stitching in seams Sail to be roped all around Provision to be made for emergency lacing to mast, either by using large cringles for slides or by providing extra cringles for lacings.	Crealock
Storm Jib	20'4"	13'10"	9'9"	61	9oz Dacron	Seams to be heavily sewn All corners well reinforced and all cringles and eyelets hand sewn	Crealock
Storm Jib 2	14'	8'	8'	28	10oz Dacron	Seams to be heavily sewn All corners well reinforced and all cringles and eyelets hand sewn	Crealock
Spitfire Jib	11'	6'7"	6'7"	20	11oz Dacron	Soft weave Dacron Heavily reinforced	Crealock

Thank you all for your help!

Cheers,
Aaron N.

WESTSAIL 28

• Thanks to Taylor Kash for these numbers!

Sail	Luff	Leech	Foot	Area (Ft/2)	Material Weight/Type	Notes	Designer
Main	31'	32'7"	12'5"	196	7.75oz Dacron
Staysail	25'	21'3"	10'9"	114	7.25oz Dacron
Yankee Jib	33'2"	25'6"	18'11"	235	6.5oz Dacron
Genoa (135%)	36'6"	34'6"	24'	398	5.5oz Dacron
Reacher	36'6"	32'	25'5"	397	2.2oz Dacron
Drifter	36'6"	33'5"	26'	425	1.5oz Nylon
Spinnaker	36'6"	36'6"	25'2"	150%	1.5oz Nylon
Genoa Staysail	26'6"	23'2"	14'4"	165	7.25oz Dacron
Working Jib	31'2"	23'11"	14'5"	148	7.25oz Dacron
Storm Jib	20'	13'7"	10'	60	9.25oz Dacron
Storm Trysail	17'6"	23'6"	11'3"	94	9.25oz Dacron

WESTSAIL 39

Sail	Luff	Leech	Foot	Area (Ft/2)	Material Weight/Type	Notes	Designer
Main	?	?	?	?	?	?	?
Staysail	?	?	?	?	?	?	?
Yankee Jib	?	?	?	?	?	?	?
Genoa	?	?	?	?	?	?	?
Drifter	?	?	?	?	?	?	?
?	?	?	?	?	?	?	?

WESTSAIL 42

Sail	Luff	Leech	Foot	Area (Ft/2)	Material Weight/Type	Notes	Designer
Main	?	?	?	?	?	?	?
Mizzen	?	?	?	?	?	?	?
Staysail	?	?	?	?	?	?	?
Yankee Jib	?	?	?	?	?	?	?
Genoa	?	?	?	?	?	?	?
Drifter	?	?	?	?	?	?	?
?	?	?	?	?	?	?	?

WESTSAIL 43

Sail	Luff	Leech	Foot	Area (Ft/2)	Material Weight/Type	Notes	Designer
Main	?	?	?	?	?	?	?
Staysail	?	?	?	?	?	?	?
Yankee Jib	?	?	?	?	?	?	?
Genoa	?	?	?	?	?	?	?
Drifter	?	?	?	?	?	?	?
?	?	?	?	?	?	?	?

Aaron:

I'll measure a 2007 Kern main sail next week - great idea by the way.

7/14/2013  this is a slow answer for sure...

Kern's main for a W32 on the SF bay area is a 2 full batton , 2 reef point (all I asked for) with the following measurements.

Luff 38' 4"
Leech 39' 2"  (this is the straight line measurement from head to clew)
Foot 14' 6" 

His furled head sail is 300 SF  for the higher winds or the Super Yankee with 350 SF.

In my notes from a Rondy talk - Kern said that the new main sails have a 2-3.5% camber verses the 6% camber of original main sails.

The staysail by Lee Sails to match the existing is 27.5' Luff, Leech 25' and foot 10.5'  or 131 SF of 8.3Oz cloth.

Jay

November 2023 - A Dave King answer about a drifter: 

... this is an example of a good drifter:  Luff = 42’, le = 39.5’, Ft = 27’.  Weight is .75oz.  Area is about 510 sq ft.   This was a custom made sail but not for my boat.  

Aaron:

Sail	Luff	Leech	Foot	Area (Sq Ft)	Weight
W42/43 Cutter
Main	43.5	46.5	16.5	360	9.25
Staysail	32.83	27.91	12.75	176	8.25
Yankee	50	37.75	23.75	425	7.25
140% Genoa	50	46.91	32.5	735	6.5
Reacher	50	44.25	34.17	735	3.8
Drifter	50	46	35.75	788	2.2
Working Jib	47.5	34	20	275	8.25
Genoa Staysail	32.83	27.91	17.33	254	7.25
Storm Jib	21.75	15.42	13.5	100	9.25
Storm Trisail				120	9.25
Spinnaker	SL 51.5	SMW 37.8			1.5
LeFiell Mast and Boom
Data taken from Westsail Owners Manual