Airbus Group SE will put off a dozen deliveries of the A380 plane in the next two years following an agreement with Emirates, its largest customer for the model, as demand continues to fade for the double-decker. Handovers of six A380s apiece that were originally planned for 2017 and 2018 will be shifted to a year later following an agreement with Emirates and engine supplier Rolls-Royce Holdings Plc, the Toulouse, France-based planemaker said Tuesday in an e-mailed statement.