 One of its designers claims a 90% shipment delivery success rate, and stated that the "torpedo" development was heading towards a remote control feature using encrypted signals transmitted via satellite.The western Colombian shore topography is near ideal for transporting the cocaine produced in clandestine laboratories in nearby Nariño department.About a third of the 550 metric tonnes of cocaine coming out of Colombia each year leaves via the Pacific coast and a significant amount is being carried in semi-submersibles.