Hunter Passage 420 - B&R Rig Tuning

TUhIING
TIIE
P42O
B&R RIG
The
easiest
method
for
tuning
the B&R
rig
is to
perform
step
one
as follows
before
the mast
is
steppe{
with it lytng
aft
side down
on
two
sawhorses.
Begin
with
all rigging
slack
If
the
mast
is already
stepped,
loosen
all the
rigging
and
then
proceed
to
step
one.
1.
Start
with all
the
rigging
slack.
Then
induce
the mast
bend by
tightening
the reverse
diagonals
(diamonds). Measnre
the
bend
by
tensioning
a line
or
the
main
halyard
betrreen
ttre
masthead
and the
gooseneck.
The ma,rimum
amount
of bend
should
be
no
more
than 8"
(203
mm)for
the standard
rig
and no
more than
2"
(50
mm)
for
the
fuling
mast
measured
perpendicular from
the
aft
face
of the
mast
to the halyard
at
the deepest
part
ofthe
bend
It can
be less
than
that
based
on
the
sail shaPe
and
Your
owD
preference. The
bend
should
also
be evenly
distributed
along the
mast
to
give
a smooth
shape.
Keep
in mind
that
bending
a furling
mast
may
make
itmore
difficult
to furl
and
will not
do much
to flatten
the sail
as in
a
standard
rig. It
is
very important
that the
mast
also be
staight
from
side
to side
at
this
time.
Tighten
or
loosen
the reverse
diagonals
to achieve
this.
Step
the
mast
with
all shrouds
attached
but
with
the turnbuckles
completely
loosened
(if
the mast
was not
already
stePped)'
Attach
the
jib
halyard
to
a cleat on
the
bow
to support
the
mast
in
a raked
position
(the
masthead
should
be
about
1-12' behind
the
st€p).
Attrach
the
verticals
and
tightcn
the'm
until
you
can
just
see
the
hole
for
the cotter
pin
in the
tumbuckle.
Tighten
the
jib
halyutd
until
you
can attach
the
forestray.
At
this
point
the masthead
should
b€
rakd so
that a
weight
hung on
the
main
halyard
hengs
about
l' behind
the mas
steP.
4. Use
the
main
halyard
to
check
tbat
the mast
is centsr€d
from side
to
side.
Pull it
tiSht
and
mark
the
halyard
next
to the
verticals
chainptate.
Now
do
the same
to
the
other
side
to
see
if the marks
line
up. If not'
tighten
and/or
loosen
the
vedicals until
the
marks
line
up. Once
the
masthead
is
centere4
begin
tigbtening
the
verticals
until
the turnbuckles
are approximately
half
closed. While tightening
the
verticals
you
may
notice the
bend
in the
mast increasing.
Now
you
can
tigbten the lowers
which
will
tend to staigbten
the lower
part
of
the
mast'
Be
sure to tighten
port
and
starboard
sides
evenly.
Now
you
should
tigbten
the headstay
until
it
is appmximately half
closed as
well.
This
should
induce the
ap'proprirate
amount
of
headstay tension-
Never
us€
anything
mor€
than a
pair
of
wrenches
to tighten
yorn
riesng.
If
you
use an extended
piece of
pipe
on
the handle
of a wre,:rch
you
can over
tighten
tbe rigging
and do
damage
to
the
mast or rigging.
On the Hunter
P420
it is necessary
to
go
up
tbe
mast in a bosun's
chair
to tigbten
the
number 2 diagonal
shroud
@2
or
intermediate shroud).
Always
use
caution
when
"going
aloft'.
You
should
always
use
a mountain
climbing
harness
or
Bosun's
Chair intended
for this
use,
Always
tie into
the
harness
with the
halyard usrng
a bowline
and
tben secure
the shackle
as a back
up
as
the
knot is more
reliable than
a mechenical
fastener.
The
person
hoisting
you
aloft
should
keep
the
halyard
stopPer
closed
to
prevent
falls.
Good
communication
between
the two of
you
is also
important
Tighten
the D2
until it has
just
become
tigbt
and
then
add tvro
complete
tums.
While at
the
first
spreader,
look up
the back
of
the mast
to
see
if itis
staigbr If notthenadjustthe
appropriate
D2
to straigbten
it
Have
the
person
on deck
carefully
lower
you
They
should
keep
the hdyard
wrapped
at least
twice
arormd the
winch
and
should
always
bave one
hand
able
to
stop
the
balyard from
nmning
free. Once
on
deck
look rry
the back of
the mast
and
see
if
it is
sEaight
if not
then adjust
the
lowers
@1)
rurtil
it is.
8:
Ifyou have
the
standard
rig
you
need
to
attach the
struts
at this time.
Attach
the
lower
end
of the
stnrt to the
smaller
hole
in
the chainplate.
Adjust
the
lenglh
by
tuming
6.
2.
J.
7.
PAGF.5?