Final answer:
The question asks for the pressure at the propeller tips at high speeds, but specific data required to calculate this value is missing.
Step-by-step explanation:
The question relates to a propeller operating in water at high speeds and involves calculating the drop in pressure at the tips of the propeller blade. However, the provided information does not include explicit details regarding the pressure at the tips of the propeller blades necessary to calculate a drop in pressure or any specific value. To determine this pressure drop, the principles of fluid dynamics and Bernoulli's equation would typically be used, which relates the velocity of a fluid to its pressure. As the speed of the propeller increases, the velocity of water at the blade tips also increases, which can lead to a decrease in pressure according to Bernoulli's principle.