Masts Carbon & Aluminum. All Disciplines. The Carbon Mast is constructed from a High Modulus (HM) Carbon blend, delivering superior strength and minimal weight. HM Carbon Blend: Combines superior stiffness with lightweight properties. The Aluminum Mast features a robust foil section with an optimized profile that offers impressive stiffness and minimal drag. Comparable Performance: Matches the submerged drag of the Carbon Mast at higher speeds.