The Oppistack design has taken the optimist yacht hull and redesigned it to be stackable, in order to suit the needs of a portable sailing school. Oppistack was designed around the same ethos and ideals as the Volvo Sailing programme that travels around New Zealand six months of the year. It sets aside three trailers to give children the chance to try out sailing. While learning how to sail, the children benefit by gaining self-confidence, problem solving and logical thinking skills, as well as a respect for the environment. Through the Oppistack design these benefits from sailing have been the focus point of how the user group would interact with the yacht to enhance the user experience. The rigging of Oppistack has been broken down into steps, making it easy for coaches to communicate to the first time user groups. They are colour coded so the coaches can communicate to the users what they need to match, ‘blue with blue and red with red’. The mast is attach in the hull with a bayonet locking system, which gives the users haptic feedback with the clicking and locking feel and sound. This is the final step before sailing, to give the children a boost of confidence. Oppistack is made with rotational molded polyethylene. This manufacturing technique provides a robust and buoyant yacht ideal for first time sailors and also for transporting across large distances. The ideal number of yachts per stack is about eight. This makes each stack to be only 1100mm high. Each yacht when de-rigged and prepared for transporting carries all the necessary parts for sailing. The mast and boom fit down the keel line which has a special slot designed for it holding it in place. The entire folding component fold down flat. And the centreboard and rudder sit within the cockpit.