I was afraid that was what you were looking for. I seriously doubt that you will ever see photos of her screws, actually in the process of moving her through the water. Those pictures would have to be taken with a remote camera, very firmly attached to the hull. A photographer, in the water,close enough to see the screws as she passed over, or by, at any speed, would be sucked into the screws. I'll let your imagination complete that picture. There might be some stills, or videos, demonstrating cavitation, which, while not the Enterprise's screws, would be as good a representation as you could get. Having plotted her on radar, I'd suggest pouring water into a blender, and using a highspeed camera to record the effect, first at slow rpm, then at max rpm......double the effect of max rpm, and you'll come close to the real thing. She wasn't hitting "warp speed", but I still don't believe that anything could push that much salt water out of the way that fast!, and the flow of water through her screws was considerably faster than she was moving.