This relationship was defined by a ground-breaking contractor logistic support contract which contracts the ships' availability to the RN, including technical and stores support.
Activities onboard include navigation and seamanship training, breakdown or man overboard exercises and visits from local dignitaries or senior RN officers.
Fusion also occurs between the right coronary and noncoronary leaflets (RN, 17%), and least commonly between the noncoronary and left coronary leaflets (2%).