256th Group of Helicopters was established as a result of the acquisition by the Naval Forces of the two T22 frigates in order to complete the range of sensors and weapons in their equipment, being the specialized unit for training navigating, technical and insurance personnel to operationalize embarked detachments. for the accomplishment of specific missions, on and for the benefit of frigates. The on - board helicopter is a system of sensors and weapons of the ship that has the role of increasing its operational capacity by acting, from the ship and for its benefit, for the execution, in principle, of specific missions.