this is Mr Lobster in the tank, photo taken for a mini review for
www.rcgroups.com.
The sub itself has an internal battery, not big either, enough for 2 mins of running. movement is by 3 motors, a vertical thruster to send her down, and up under power, though she will surface on her own if the motor stops. A bow mounted thruster, and a regular albeit small propeller at the stern to propel her forwards.
She is a near-scale model of the Jamstec Shinkai 6500, the only thing that isn't too accurate is the length, she is about 10mm too short, however im not going to moan about that. Sitting on the deck of Nord Icelandia, she looks lost, though not a surprise, those 2 man mini subs are not big