Good morning gentlemen. Let us start talking about propeller behind a ship. We have seen how the propeller behaves in the open water in the last class. What happens when you put the propeller behind a ship? First of all, as we have discussed earlier, the propeller works in the wake field of the ship. Therefore, the speed that you get water speed falling on the propeller would be less than the ship speed, or in other words, speed of advance V A will be less than V S. Am I right in saying this?