Officer technical managers in the strategic weapons and ordnance field, with practical experience in related areas. They plan, supervise, train, and direct subordinate personnel in the operation and maintenance of submarine weapons systems and may direct or coordinate ordnance and ordnance equipment procurement, production or repair. They may also serve as weapons repair, nuclear weapons repair, fire control repair, torpedo repair, missile launcher repair, or weapons quality assurance officer or on strategic weapons and ordnance related staffs. An officer of the Naval Reserve.