An Emergency Rudder for a Cal 39
- This is a collection of photos of the emergency rudder built for Novia, a Cal 39-IV belonging to
John and Judy Webb. The Cal
39-IV has a reverse transom. Notice how the top rudder bearing is
projected out from the slope of the transom. This allows the rudder to be vertical, and keeps the rudder pintels fairly
far apart, which makes
the steering system stronger.
Click here for a printable version of this article using larger
assembled in the yard, you see an overview of the whole system here. Notice the difference in rudder area
between the stock rudder and the emergency
rudder. You would be correct in assuming that there would be less
control with the emergency system. Also notice that there is no cassette with this installation, so rigging the emergency
rudder on the pintels
will be a difficult task. The rudder will be pushed around by the
This is the system rigged in the water with the steering lines attached to the tube on the top of the emergency rudder.
this close up you can see the pintels and gudgeons which both need to be
aligned to install the emergency rudder. This is where a cassette would be a distinct advantage, allowing you to connect
the pintels and
gudgeons before the rudder blade is set into the water. In this photo and the one following you can see the vertical
aluminum square tube has been filed with wood. This both stiffens the extrusion and allows the tightening of bolts with out
causing the extrusion to bend out of column.
parts of the system are clearly labeled to aid in the installation of the
system. Typically a rudder breaks after dark and in big waves.
control lines lead forward from the rudder to snatch blocks on each rail, and then into a disk mounted onto the
steering wheel! As long as the steering wheel is not disabled, you would be able to steer from the regular
that it is the starboard control line which wraps around the disk multiple times, and then comes off to join
side control line. This means no knots on the disk, and it makes it relatively simple to "tighten
the steering " using
the knot on the port side of the cockpit.