Deep Sea Exploration, Alternate of 9396 Helicopter
This MOC was originally created for the Eurobricks Technic Triple Build Contest. It came on 6. place out of 32 entries :-)
There's a boat carrying a submarine which can be lowered into the water. The submarine then dives to explore the deep sea, where it discovers a giant crab living on the bottom of the ocean. Since the crab is really big the submarine is probably just taking photos ;-)
Functions of the boat are raising/lowering and rotating the jib. The functions of the submarine are two rotating propellers and opening/closing the claw (using a mini LA). The crab has no functions besides movable claws.