“I pushed it to its limits”: On board the maiden flight of the Quadriga Eurofighter

Throughout a test pilot’s career, certain flights become unforgettable milestones. For Stefan Auer, the maiden flight of the Quadriga Eurofighter was one such event. In an exclusive recounting, the Airbus test pilot shares his remarkable experience.

On what was expected to be an ordinary day of flying, Stefan Auer, a test pilot for Airbus based in Manching, Germany, was about to embark on a significant journey. The date was 14 July 2026, a day that would mark the maiden flight of the first Quadriga Eurofighter, a new cutting-edge fighter jet destined for the German Air Force starting in 2026.

To gain insight into a maiden flight from the pilot’s perspective, we approached Auer following the successful completion of the flight, which not only marked an inaugural mission but was also Auer’s first experience piloting a factory-fresh Eurofighter as part of a production flight acceptance test (PFAT).

Stefan, how does it feel to be the pilot on the maiden flight of the Quadriga Eurofighter?

It feels amazing. I’m very happy and relieved that everything went smoothly. This maiden flight is particularly meaningful to me, and I take great pride in the collective effort of the whole team that made it possible.

What was the objective of this flight?

This flight was a production flight acceptance test (PFAT). The Quadriga Eurofighters are currently in production for the German Air Force, and each aircraft undergoes a comprehensive testing program once assembled. The PFAT serves as the first flight of each aircraft, during which all systems are rigorously evaluated within the full flight envelope. The main goal was to confirm that the aircraft is airworthy and safe for operational use.

What was going through your mind when you got into the aircraft?

Safety was my utmost priority, so I made it a point to double- and triple-check everything. I felt the weight of expectations, considering how many people had dedicated their efforts toward this moment.

Can you tell us a bit about the flight?

The flight represented the culmination of extensive prior preparations. It was a long day, beginning with a detailed briefing to familiarize ourselves with the aircraft and the upcoming mission. Afterward, we proceeded to the aircraft, meticulously verifying every detail to ensure readiness and safety.

We rigorously tested both the hardware and software on the ground and in the air. This included assessing basic flight characteristics, engine performance, the flight control system, hydraulics, and electrical systems. During the flight, I pushed the jet to its limits—from switching the engines off and on in mid-air to performing maneuvers under extreme G-forces and reaching supersonic speeds.

Everything went exceptionally well, and I’m pleased with the aircraft’s performance.

What was your experience in the cockpit like?

The cockpit experience felt a little peculiar since I am familiar with the Eurofighter, but this particular Quadriga version was new to me. I approached every step with caution, ensuring that the German Air Force receives an aircraft that is fully mission-ready.

What are the differences between the Quadriga Eurofighter and aircraft currently in operation?

The Quadriga aims to replace Tranche 1 of the Eurofighter, the first version produced. Subsequent tranches incorporated incremental enhancements, and the Quadriga now represents Tranche 4, featuring numerous upgrades and systems ready for operational deployment with the German Air Force. This includes the latest Phase 3 enhancements to both hardware and software, alongside a new E-Scan radar designed to improve air-to-air and air-to-ground missions.

While there are many advancements, the Quadriga Eurofighter’s external appearance remains quite similar to previous versions.

What impresses you most about this aircraft?

I was particularly impressed by the overall quality of the aircraft I piloted today. During a production flight acceptance test—and especially a maiden flight—you typically identify areas needing adjustments. However, I’m pleased to report that I didn’t find any significant issues upon my return from the flight.

When you look back at your flying career, where will this flight rank?

My career has included several highlights, such as my first solo flight in a Eurofighter and leading a four-ship formation for the first time. This flight certainly stands out as one of the highlights as well—it’s definitely in my top five.

Source: Airbus Defence and Space (2026-07-17)