🚢✤This is how Controllable Pitch Propeller (CPP) Blades Rotate. ✤🚢 5 blade propeller - each blade is 8 feet tall, weighing 5 tons each. Video by: Nhemann Checkout Our eBooks For Engine Department > https://buff.ly/2G8BA27 Send us your "Life At Sea" pics along with some details at photos@marineinsight.com Note: Respect the Photographer. This photograph is only for sharing purpose and not for any commercial use. We take great care in ensuring that all credits are given to the right photographer.