Rudder Port/Bearing Tube System Type 1 Installation

Installation Overview

The following is a brief description of a "Type One" installation. Detailed directions and drawings are available upon request and should be followed closely.

Mold Modifications:

1. Locate the exact position of the rudder stock center on the mold surface.
2. Carefully drill a hole perpendicular to the surface large enough for the plug bolt/bushing.

To install the Tube prior to lay-up:

1. Prepare the tube for lay-up by roughing up the outer surfaces with a grinder and wipe clean with thinner.
2. Mask the top of the assembly to protect it from overspray/excess resin.
3. Locate the assembly against the mold surface and bolt in place through the mold hole using plugs provided.

Lay-up procedure:

1. Begin the hull lay-up in normal manner.
2. Cut an X in the cloth above the liner so that it can be laid down and around the flange base with tabs against the outer wall of the tube.
3. On subsequent layers, stagger the position of the X cuts so that the tabs overlap each other.
4. Taper the lay-up to at least 1" above the top of the lower bearing..
5. REMOVE THE LOWER PLUG & BOLT. (Leave the upper plug in place until the time of rudder installation.)
6. When the rudder shelf is constructed, it should allow for the upper end of the tube assembly to pass through. Once the shelf is in place, the upper tube end is incorporated using a similar lay-up technique with staggered overlapping tabs throughout the lamination. Care should be taken to prevent excess resin and cloth from covering or entering the upper plug or tube insert.

Installation Types

The procedure for modifying the mold and installing the liner pre-layup differs according to the type of hull being produced. The following are the three most common variations. Click the name or drawing for the Product Installation.

TYPE ONE- Molds with an existing "flat" at the rudder port location which will use the standard flange type liner.

TYPE TWO- Molds which require modification to achieve a "flat" surface or pocket for mounting a standard flange type liner.

TYPE THREE- Molds which require modification to accept an angled liner to match deadrise and rocker angles.

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