J/30 Rigging Information
Running Rigging
Last update: March 1, 2000
This is a table originally put together by a rigger in Annapolis
for one of the J/30 owners. Most of the values should be close to
what was on the boats when they were originally shipped. Of course,
many of these dimensions will be different depending on how the
controls are rigged (e.g. how your boat's backstay control is led
and how many parts you have on the block and tackle). So, don't
take these as gospel, just a useful starting point.
| Halyards |
Length |
Diameter |
Details |
| Main |
102 |
3/8" |
Originally 55 ft of 3/8" rope + 47
ft of 3/16" wire. On Mondial, I'm using 5/16" Technora cored
line. |
| Jib |
81 |
3/8" |
Originally 48 ft of 3/8" rope and
33 ft of 5/32" wire. On Mondial, I'm using 5/16" Technora cored
line. |
| Spinnaker |
81 |
3/8" |
We're using one of the blended core
lines @ 5/16" diameter |
| Pole Lift |
54 |
3/8" |
|
| Sheets |
|
|
|
| Main |
100 |
3/8" |
|
| Jib |
45 |
7/16" |
One of the "fuzzy" braid lines is
easier on the hands |
| Spinnaker |
60 |
3/8" or 5/16" |
We're using one of the blended core
lines here to reduce stretch. It makes an amazing difference |
| Light air spinnaker |
60 |
3/16" or 5/32" |
|
| Control Lines |
|
|
|
| Foreguy |
65 |
5/16" |
If double-ended |
| Backstay |
44 |
5/16" |
We're actually using 1/4" line because
it's double-ended to either side of the cockpit. |
| Traveler |
2 @ 20 |
5/16" or 3/8" |
Ours is a single length of line,
with eyes at each end to make it easier to trip the lazy side
of the traveler line |
| Boom Vang |
26 |
3/8" |
When we went to the Boomkicker, we
kept the old soft vang, but added a doubling plate at the mast
end and then used about 5' of Spectron and a wire block to double
the purchase to 12:1. |
| Outhaul |
35 |
3/8" |
|
| Cunningham |
25 |
5/16" or 1/4" |
|
| Flattener |
34 |
3/8" |
|
| Reef Lines |
34 |
3/8" |
|
| Twings |
2 @ 18 |
1/4" |
We're using Yale Light since the
twings are kept in a locker except for races and don't pick
up water when they droop down. |
Standing Rigging
| Stay |
Length |
Diameter |
Details |
| Upper Shrouds |
34' 7 1/2" |
1/4" |
T Ball to Turnbuckle |
| Lower Shrouds |
17' 2 3/4" |
1/4" |
T Ball to Turnbuckle |
| Forestay |
35' 8" |
1/4" |
Marine Eye to Turnbuckle - Max. Head
stay length is 35'10 1/2" measured to the Sheer Line at the
bow stem fitting.(rule 5.8.2.1). The measurement listed is pin-to-pin
of the stay. |
| Backstay - upper |
37' 10 1/4" |
3/16" |
Marine Eye to Fork - The original
length of the back stay was 38'2 1/4". We shortened it 4" to
get more adjustment in it. This is a common modification to
the J/30's. |
| Backstay - lower |
8' 3 3/4" |
3/16" |
Fork to Turnbuckle |
|
