Thank for this info Netleyned, specialy the paddle effect.
About cavitation I'm not sure. In France many people confuse with this term as the real cavitation is a bubble created because of the void. Because of depression on the front side of the propeller blade, void appear and then the water is instantaneous boiling. When these bubble implose as the pressure is back it could be some damages, it creat also a singular noise.
Maybe there is not distintive word for that in English but here many people confuse with this words, air suction and cavitation.
Xtian