Ryanair utilizes an "all-Boeing 737" fleet strategy primarily to minimize operational costs and maximize efficiency. By operating only one aircraft type, the airline saves millions on pilot and crew training, as every employee is certified to work on every plane in the fleet. Maintenance is also significantly cheaper, as they only need to stock one set of spare parts and their engineers only need to specialize in one system. This simplicity facilitates the famous "30-minute turnaround" at gates, allowing planes to spend more time in the air making money. While Ryanair recently integrated the "737 MAX 8-200" (which they call the "Gamechanger" for its higher seat capacity and lower fuel burn), staying loyal to Boeing allows them to negotiate massive bulk-order discounts that wouldn't be possible if they split their fleet with Airbus.