horsepower. Twin 825 hp MTU Series 60 engines lift her effortlessly from the hole and to top speed in about 18 seconds. Engine options up to 1,015 hp each are available. Her steering is responsive ... and one aft. As a result, the engines look lost in the abundant engineroom space. There is 29 inches ...

was within 40 pounds of the engineer's estimate. They have learned to pay special attention ... Hyer, the engineer whose team designed the 81.5. Sea Force's stringer system stiffens the bottom ... . Stout engine beds of inch-thick steel on foam stringers capped with aluminum are stiff enough to let ...