The B-52 Stratofortress, a cornerstone of US military airpower since the Vietnam War, is poised to undergo a significant transformation that will increase its range.

The entire fleet of B-52H bombers will be upgraded to the new B-52J model, which will be powered by new Rolls-Royce F130 engines as part of the US Air Force's B-52 Commercial Engine Replacement Program.

Once installed, the F130 engines are expected to extend the life of the aircraft for another 30 years and remain on wing for the remainder of the aircraft life, according to their manufacturer.

These engines are expected to increase fuel efficiency by 20-30%, reduce maintenance costs and improve the bomber's overall performance and range.

The engine upgrade means that the B-52J will need aerial refueling less frequently than its predecessor does, significantly enhancing its strategic and tactical flexibility.

The current B-52H already has a range of 14,162km. The use of aerial refueling gives it a range limited only by crew endurance, according to the Air Force.

The B-52J will feature improved avionics, including a new radar system, upgraded communication capabilities and a redesigned cockpit.

The first upgraded bombers are expected to enter service in the late 2020s or early 2030s.

Advanced refueling

The B-52J's enhanced capabilities will be complemented by the KC-46A Pegasus aerial refueler, which represents the "beginning of a new era in air-to-air refueling capability," according to the Air Force.

Both aircraft are equipped with Link 16 communication capabilities, which allow them to communicate with other assets -- such as artillery, naval vessels or other aircraft.

The Link 16 communication system ensures efficient and secure refueling, even in contested environments. It provides a secure, jam-resistant, high-speed digital data link.

Direct communication between the KC-46A and B-52J via Link 16 allows aerial refueling on a one-to-one basis, reducing the risk of communication breakdowns and ensuring quick delivery of fuel to the bomber.

This interoperability helps maintain the operational tempo of the B-52J and ensures that it can remain on station for extended periods, providing continuous support to US and allied forces.