INTRODUCTION : The Gemini Craft is designed to be seaworthy and carry out functions like (a) Diving Operations (b) Life Boat (c) Transport men and material (d) Limited Search and Rescue Operations at sea and in harbour with full complement and have good manoeuvrability and throttle response through its speed range (using 25-30 HP OBM) and particularly when coming alongside or breaking away from an underway vessel at its full load and complement.