We present the Armstrong Performance Mast A+ System.

A structural analysis shows that a combination of high modulus (HM) and medium modulus (IM) carbon fibers best distributes the loads to the different areas of the mast. The stiffness of HM minimizes bending in the central strut area of the mast, while the high tensile strength of IM accommodates the complex shapes of the top plate and hull joint.

The result is a performance mast consisting of premium materials, a new mast section, a refined base plate, a reduced-drag fuse connection and a new construction method. The proprietary M7 titanium masthead hardware provides a strong, lightweight and low-drag connection to the board.

These masts are designed with a mast-rake angle. This fine-tunes the angle of the board in relation to the foil for a more comfortable and forgiving ride. It does not change the lift or balance of the foil itself and has no effect on the "foot pressure" bias of the foil front or back. The rocker of the board also directly determines the effective mastrake - boards of different brands have a variety of different rocker lines that influence the rake angle - and more rocker in the back half of the board effectively increases the mastrake. The 1 degree rake specifically incorporated into the upper part of the Performance Mast Shape offers three key benefits by adjusting the board relative to the foil underwater:

By bringing the foil closer to 0 degrees when the board is in the water, drag is reduced, making it easier to take off.
Touching down at speed or landing a jump is more forgiving and there is less risk of falling headfirst over the board.
By raising the board nose slightly (1 degree = 17.46 mm/m), the mast rake makes it easier to ride fast without the nose catching on steep downhill angles.

Simply put, the Performance Mast Series takes the sublime Armstrong feel further than ever before.