KC-390 Millennium and Gripen E finish key air-to-air refueling tests in Brazil

In a major boost to next-generation airpower, Saab, Embraer and the Brazilian Air Force (FAB) have successfully completed the certification flight tests proving that the Gripen E fighter can refuel in mid-air from the KC-390 Millennium tanker.

This milestone enhances operational range, strengthens Brazil–Sweden defence cooperation and validates the capabilities of both advanced aircraft.

Successful Refuelling Test Campaign

The certification campaign was conducted at Embraer’s Gripen Flight Test Centre in Gavião Peixoto, São Paulo. Engineers and test pilots from Saab, Embraer and the FAB evaluated various speeds, altitudes and flight conditions to confirm safe, precise and stable in-flight refuelling. Both aircraft demonstrated exceptional handling due to their modern fly-by-wire systems.

Objectives of the Campaign

The testing focused on two key goals:

• Certifying the Gripen E as a receiver for air-to-air refuelling, ensuring its structural integrity and performance.
• Verifying full compatibility across the KC-390’s entire operational envelope, including high-speed refuelling missions in both day and night conditions.

This success extends the operational reach of the Gripen E and confirms the KC-390’s effectiveness as a next-generation tanker.

Statements from Saab, Embraer and FAB

Saab officials highlighted the milestone as proof of the Gripen E’s advanced operational readiness. Embraer emphasized that the KC-390’s multi-mission flexibility allows rapid conversion into a tanker. FAB leadership praised the global teamwork, combining Swedish technology, Brazilian engineering and the Air Force’s operational expertise.

Next Steps in Certification

The Swedish Military Aviation Authority (SE-MAA) will now review the evidence for the Gripen E’s refuelling capability. Brazil’s Industrial Promotion and Coordination Institute (IFI) will also conduct its own certification to ensure compliance with international safety and performance standards.

Operation Samaúma

Around 40 specialists participated in Operation Samaúma, placing Brazil among the few nations capable of testing, verifying and validating an indigenous air-to-air refuelling system.

KC-390 Millennium – Key Features

• Multi-mission transport aircraft capable of cargo, troop transport, medevac and aerial refuelling.
• Rapid conversion to tanker role within hours.
• Equipped with advanced fly-by-wire flight controls for stability during refuelling.
• High-speed refuelling capability for fighters.
• Robust Pratt & Whitney engines enabling high performance in hot and high conditions.
• Modern avionics suite with automated systems for reduced workload.
• Rear cargo ramp for heavy loads and military vehicles.

Gripen E (F-39E) – Key Features

• Latest-generation 4.5+ multirole fighter with advanced aerodynamics.
• AESA radar, IRST and advanced electronic warfare suite for superior situational awareness.
• Fly-by-wire controls providing high agility and precision during refuelling.
• High thrust-to-weight ratio powered by GE F414 engine.
• Weapons compatibility: air-to-air, air-to-surface, cruise missiles and smart munitions.
• Network-centric warfare capability with real-time data sharing.
• Lower operational cost compared to other modern fighters.