The U.S. Air Force plans to spend more than $1 billion on developing a guided tailkit to increase the accuracy of the B61 nuclear bomb.
The cost is detailed (to some extent) in the Air Force’s budget request for FY2014, which shows development and engineering through FY2014 and full-scaled production starting in FY2015.
The annual costs increase by nearly 200 percent from $67.9 million in FY2014 to more than $200 million in FY2015. The high cost level will be retained for three years until the project decreases after production ceases in FY2018. Some additional funding is needed after that to complete the integration and certification on (see graph).
Production of the guided tailkit is intended to match completion of the first new B61-12 bomb in 2019, a program that is estimated to cost more than $10 billion. Although the number is a secret, it is thought that the U.S. plans to produce roughly 400 B61-12s.
The expensive guided tailkit is needed, advocates claim, to make it possible to use the 50-kiloton nuclear explosive package from the tactical B61-4 bomb in the new B61-12 against targets that today require the 360-kiloton strategic B61-7 bomb. By increasing accuracy, the B61-12 becomes more useable because it significantly reduces the amount of radioactive fallout created in an attack.
Once deployed in Europe, the B61-12 will also be able to hold at risk targets that the B61-3 and B61-4 bombs currently deployed in Belgium, Germany, Italy, Netherlands, and Turkey cannot target.
The B61-12 program will maintain compatibility on all five current B61-capable aircraft (B-2A, B-52H, F-16, F-15E and PA 200). In 2015, integration, design and testing will begin on the new stealthy F-35A Joint Strike Fighter. The Air Force budget request shows that B61-12 integration is scheduled for Block 4A and Block 4B aircraft in 2015-2021 with full operational capability in 2022 – three years after the first B61-12 is scheduled to be delivered (see table).
The combination of the new and more accurate guided B61-12 on the stealthy F-35A will significantly increase the capability of the U.S. non-strategic nuclear posture in Europe. This development is out of tune with U.S. and NATO pledges to reduce the role and reliance on nuclear weapons, and will make it a lot easier for hardliners in the Russian military to reject reductions of Russia’s larger inventory of non-strategic nuclear weapons.
This publication was made possible by a grant from the Ploughshares Fund. The statements made and views expressed are solely the responsibility of the author.
FAS and FLI partnered to build a series of convenings and reports across the intersections of artificial intelligence (AI) with biosecurity, cybersecurity, nuclear command and control, military integration, and frontier AI governance. This project brought together leaders across these areas and created a space that was rigorous, transpartisan, and solutions-oriented to approach how we should think about how AI is rapidly changing global risks.
AI is already consequential, but its future trajectory remains contested. Policymakers should make their assumptions explicit, focus on what can be shaped rather than what can be perfectly predicted, and build institutions that can learn and respond as evidence changes.
From grassroots community impacts to global geopolitical dynamics, understanding developing data center capacities is emerging as a critical analytical challenge.
The last remaining agreement limiting U.S. and Russian nuclear weapons has now expired. For the first time since 1972, there is no treaty-bound cap on strategic nuclear weapons.