Drawings of Irwin Centerboard system
<p>
1970 Irwin 25
<p>
<a
href="https://www.angelfire.com/fl/irwinsailboats/board1.jpg"> Remove and Replace centerboard </a>
<p>

<p>
<a
href="https://www.angelfire.com/fl/irwinsailboats/board2.jpg"> Irwin Centerboard 25/28</a>
<p>

<a
href="https://www.angelfire.com/fl/irwinsailboats/board3.jpg"> Installation of New Centerboard Pennant</a> 
<p>
<a
href="https://www.angelfire.com/fl/irwinsailboats/board4.jpg"> Installation Continued</a>
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