This is what you can expect when you get your ROV into the real blue, the ocean environment. On yesterday’s mission I had 2 aborts: one to unstick an impeller due to sand buildup, and the other to unstick an impeller due to a stuck shell. Notice the blade erosion taking place due to sand. It is what you endure when you go deep. A plug for the T100’s: they can be stalled and not be damaged.