Armstrong Performance Foil Mast These masts are designed with a mast rake angle. This fine tunes the board angle relative to the foil for a more comfortable and forgiving ride. It does not change the lifting force or balance of the foil itself, and it does not impact the foil’s “foot pressure” bias front or back. Board rocker also directly determines effective mast rake – boards from different brands have a variety of different rocker lines which influence rake angle – and more rocker in the rear half of board effectively increases mast rake. The 1 degree of rake Armstrong has placed specifically into the top of the Performance Mast shape provides three main 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 which makes takeoffs easier.Touching down at speed or landing a jump is more forgiving and there’s less chance of crashing headfirst over the board.By lifting the board nose slightly (1 degree = 17.46mm/m), mast rake makes it easier to ride fast without catching the nose at steep riding angles.Simply put, the Performance Mast range takes the sublime Armstrong feeling further than ever. 65.5cm: Exceptional performance for flatwater pump, shallow water riding and young rippers. 72.5cm: Highly manoeuverable for prone surf, pump, SUP surf, wake, downwind and wing. 79.5cm: Ideally balanced performance for wing, prone surf, SUP surf and downwind. 86.5cm: The do-it-all length for wing, SUP surf, tow surf, kite, high wind downwind and prone surf. 93.5cm: The advanced rider's choice for wing, tow surf and kite foiling. 103.5cm: Confidence and control at high speeds for wing, tow and kite foiling. Available Sizes: 65.5cm, 72.5cm, 79.5cm, 86.5cm, 93.5cm, 103.5cm
