Steering; Anchors; Navigation - Evinrude 4906B 4HP 1969 Owner's Manual

Check to be sure the intended
site is solid. Vibration will increase
wear.
Now, you are ready to mount the com-
pass. To prevent an error on all courses, the
line through the lubber line and the compass
card pivot must be exactly
keel of the boat.
fore-and-aft line of the boat with a stout
cord or string. Use care to transfer this line
to the compass site.
base of the compass
lubber line (the one affixed to the case and
not glrnbaled) is vertical when the boat is on
an even keel. Drill the holes and mount the
compass.
Magnetic Items After Installation
Many times an owner
expensive stereo system in the cabin of his
boat. It is not uncommon for the speakers
to be mounted on the
against the overhead
ever y case, this position places one of the
speakers in very close
compass, mounted above the ceiling.
As we all know, a magnet is used in the
operation of the speaker.
very likely that the speaker,
most under the compass in the cabin will
have a very pronounced affect
pass accuracy.
Consider the following test and the ac-
companying photographs
statements made.
First, the compass was read as 190 de-
grees while the boat was secure in her slip.
Next a full can of diet coke in an alum-
inum can was placed on one side and the
compass read as 204 degrees,
degrees off.
Next, the full can was moved to the
opposite side of the compass and again a
reading was observed.
degrees, 11 degrees
reading.
Finally the contents
consumed, the can placed on both sides of
the compass with NO affect 'on the compass
reading.
'Two very important
drawn from these tests.
1- Something must have been in the con-
tents of the can to affect
v-
drasticall
compass
pivot
parallel to the
You can establish the
If necessary, shim the
until the stile-type
will install
aft bulkhead
(ceiling). In almost
proximity to the
Therefore, it is
mounted
on the com-
as prove of the
a good
This time as 189
off from the original
of the can were
conclusions can be
the compass so
2- Keep even "innocent"
the compass to avoid any possible error in
the boat's heading.
REMEMBER,
water at 10 knots on a compass error of just
5 degrees
course in only ONE hour.
thick weather,
the boat on a reef,
disastrous resul ts.

1-11 STEERING

USCG or BIA certification
system means that all materials,
and installation
or exceed
type, and maneuverability.
an
bends when routing the cable.
sure the pulleys turn freely and all fittings
are secure.
up

1-12 ANCHORS

One of the most important
equipment
plan t is the ground tackle
engine makes the boat go and the anchor
and its line are what hold it in place when
al-
the boat is not secured to a dock or on the
beach.
14-
The weight
secure the boat without dragging.

NAVIGATION

things clear of
a
boat moving through the
will be almost 1.5
At night, or in
this could very possibly put
rock, or shoal, with
of the steering
specific standards for strength,
in the boat next to the power
carr ied,
of
the anchor MUST be adequate
1-17
miles off
of a steering
equipment,
parts meet
Avoid sharp
Check to be
pieces of
The
to