**Airbus has announced the opening of a new conversion centre in San Pablo, near Seville, Spain, dedicated to transforming passenger A330s into A330 MRTT (Multi Role Tanker Transport) military tankers.** The facility, expected to enter service by the end of 2027, will increase Airbus's annual conversion capacity from five to seven aircraft, helping to address a growing order backlog. The company currently holds 91 A330 MRTT orders from 19 countries, representing approximately 90% of the market outside the United States. **The choice of Seville is strategic.** The San Pablo site already hosts final assembly lines for the A400M and C295 military transports, along with a major training and support centre for military aviation. By co-locating the new conversion line with existing military aircraft operations, Airbus can leverage skilled local labour, shared infrastructure, and logistical proximity to its existing conversion facility in Getafe, near Madrid. The company will also perform maintenance, repair, and overhaul (MRO) as well as modernisation work on MRTTs already in service at the new centre. **Conversion of a civil A330 into an MRTT involves installing aerial refuelling systems, additional fuel tanks, troop and cargo transport configurations, and medical evacuation capabilities.** These multi-role aircraft can simultaneously perform air-to-air refuelling, strategic transport, and humanitarian or evacuation missions. The expansion comes as defence budgets rise across Europe, the Middle East, and Asia, with recent contracts including a €1.39 billion deal with Italy for six A330 MRTTs signed in February 2026, and ongoing programmes in Spain, Canada, and Saudi Arabia. **For ATPL and ATC students, this news highlights the growing importance of multi-role military aircraft and the operational complexity they introduce.** Understanding the conversion process and the resulting aircraft capabilities is valuable for those who may later work in military or joint civil-military airspace environments. The A330 MRTT's ability to switch between tanker, transport, and medevac roles also illustrates the type of flexible mission planning that air traffic controllers and pilots must manage, especially in contested or congested airspace. Additionally, the expansion of MRO facilities underscores the career opportunities in aircraft maintenance and modification, a field that often requires specialised knowledge of both civil and military aviation standards.