these are big.... twin 1000hp.... not hung on the back mind you
Was reading about those before. Delta ARRC.
Designated the AARC (Autonomous Rescue & Recovery Craft) this Delta 19m has many novel features. The sponsons are a hybrid construction that allows the craft to take advantage of the energy absorption properties of an air filled tube with the damage resistance of closed cell foam. Carbon fibre shafts have permitted the engines to be placed in the optimum position without the weight penalty that conventional steel shafts would incur, and the cabin is a double decker