German officials have reportedly asked their American counterparts about whether it would be possible to turn the Eurofighter Typhoon into a nuclear strike aircraft. The answer to this question could have serious ramifications on Germany’s effort to replace its aging Panavia Tornado combat jets, which are certified to carry U.S. B61 nuclear bombs during a crisis as part of an inter-NATO agreement, and reinforces previous reports that the European fighter jet is the German Air Force’s preferred option. In April 2018, the German Federal Ministry of Defense sent a formal letter to U.S. officials asking about whether it would be feasible to configure Typhoons for the nuclear mission, how expensive it would be, and how long the process might take, according to Reuters.

The German Air Force’s ability to fly nuclear strikes has become an increasingly important issue even though the country is not a nuclear power itself. During the Cold War, Germany, as well as other NATO allies, agreed to host American nuclear bombs with the understanding that their aircraft could be called upon to employ them if a major conflict with the Soviet Union broke out. After the Cold War, this arrangement has persisted and the Germans continue to keep an unspecified number of B61 bombs at Büchel Air Base near the borders with Belgium and Luxembourg. The problem is that the only German aircraft that can carry these weapons are the Tornados, which are in desperate need of replacement.

Bundeswehr A German Air Force Eurofighter Typhoon armed with a conventional bomb during a training exercise.

Availability rates for the Cold War-era swing wing jets have dramatically dropped in recent years. In 2015, state broadcaster Deutsche Welle reported that only 30 of the approximately 85 remaining aircraft were airworthy at any one time. The aircraft also lack cockpits that will work with night vision goggles, which limits the jet's ability to perform missions at night. In March 2018, German magazine Der Spiegel also obtained a report calling into question the security of the Tornado’s data links. “This could in the worst case mean that the demand for an encrypted communication system for the Tornado weapons system can’t be achieved,” the document stated according to the report. “That means the Tornado weapons system may not take part in NATO missions.” The German Air Force disputed the story, saying that all of the Tornados set aside to support the alliance's requirements had the equipment necessary to perform their missions. Regardless, the service has made no effort to hide the importance of replacing the jets.

Bundeswehr A German Air Force Tornado combat jet.

The Germans will need to certify whatever aircraft replaces the Tornado as a nuclear-capable platform in order to continue performing the mission. In addition to Eurofighter, the Germans are considering an unspecified variant of Boeing’s F-15 Eagle or that company’s F/A-18E/F Super Hornet, and Lockheed Martin’s stealthy F-35 Joint Strike Fighter. The process to make sure any of those planes could carry the B61 would likely include ensuring they could safely drop the bombs at all, as well as developing appropriate mission systems and software to enable this capability under various different attack parameters. In addition, engineers would have to find ways to install the necessary systems and linkages so that the pilot can arm the weapon in flight. Each one of the bombs has a so-called “Permissive Action Link,” or PAL, that prevents the warhead from functioning until an individual puts in a specific code. You can read more about these safety features and other components of the bombs in this past feature.

DOD B61 nuclear bombs or training shapes.