Repair, maintenance and associated services related to aircraft and other equipment. Provision of Repair & Overhaul (R&O), acquisition, manufacturing, technical, design, logistic, training and other support services for Royal Navy Historic Flight, for primarily the Royal Navy Swordfish aircraft, Bristol Pegasus 30 and Centaurus 18 piston propulsion systems and other air and propulsion systems and associated equipment. Using as much of the existing approvals and infrastructure established for Swordfish and Centaurus, other RNHF aircraft may be added by agreement during the contract duration. These could be: Royal Navy Sea Fury, airframe and components and Royal Navy Sea Hawk, airframe and components.