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J/30 Class Association

Introduced: 1979
Built to: Hull #545
Last Model Year: 1986

Home
Introduction
Principal Dimensions
Articles & Drawings
Standard Equipment
 


Principal Dimensions

 

LOA

29.83'

LWL

25.00'

Beam

11.18'

Draft

5.25'

Displacement

7,000 lbs.

Engine

15 hp

Water

30 gal

Keel (lead)

2,100 lbs.

Headroom

5'11"

Height of Boat Only w/Keel

10'4"

100% Sail Area

444 sq.ft.

I

34.19'

J

11.50'

P

38.00'

E

13.00'

SPL

12.50' (one-design)

PHRF Rating

138 for OD, 144 for Std. PHRF

Mast length

47'4"

Mast height above water

47'6"

Mast Builder

Sparcraft/Kenyon

Mast Section

4060

Boom Section

E

Tack Set-up

3/4"

Tack Set-back

1-1/2"

Clew Set-up

Slug

Feeder Type

6" Slot

Feeder Above Boom

18"

 

Running Rigging

Rope

Length

1st reef

5/16"

40'

Spin halyard

3/8"

78'

Pole lift

3/8"

60'

Main sheet

3/8"

90'

Jib sheet

7/16"

35'

Spin sheet

7/16"

60'

Foreguy

7/16"

32'

Cunningham

3/8"

28'

Boom vang

7/16"

30'

Backstay line

3/8"

32'

Traveler line

3/8"

19'

 

Standing Rigging

Dia.

Length

Term1

Term2

Pin

Headstay

1/4"

35'6"

eye

trbkl

3/8"

Upper backstay

3/16"

38'2"

eye

fork

5/16"

Lower backstay

3/16"

8'6"

fork

trbkl

5/16"

Upper shrouds

1/4"

34'7-1/2"

Gibb T

trbkl

3/8"

Lower shrouds

1/4"

17'3"

Gibb T

trbkl

3/8"

 

Wire/Rope Spliced Rigging

Rope

Length

Wire

Length

Main halyard

3/8"

50'

5/32"

45'

Jib halyard

3/8"

40'

5/32"

38'

Boom Topping Lift

3/8"

4'

3/32"

40'

 

© Copyright 2007,  J/Boats, Inc., 557 Thames Street  Newport, RI  02840 - 401.846.8410  Email: J/Boats