Research on the Speed Improvement for Deep-V Planning Boat

The author analyzed and studied the speeds of deep-V approaches to the speed problem arising from the sea trial were put planning boat in trial, and some forward on the basis of trial data. Some measures were taken, such as amending the propeller, installing the divided lifting wedge, adjusting transom flap and flow deflector. The boat speeds were therefor increased by approximately 4 kn. The methods and effects of reducing resistance are also emphasized.