This article is based on an official press release from Kratos Defense and additional industry reporting.

Kratos and GE Aerospace Secure Air Force Contract for New GEK1500 Engine

Kratos Defense & Security Solutions and GE Aerospace have been awarded a $12.4 million contracts by the U.S. Air Force to develop a new engine tailored for the next generation of unmanned aerial systems. The award funds the preliminary design of the GEK1500, a 1,500-pound thrust class turbofan engine intended to power “expendable” Collaborative Combat Aircraft (CCA).

According to the official announcement from Kratos, this development effort aims to support the Air Force’s strategic goal of “affordable mass”, deploying large numbers of low-cost autonomous drones to overwhelm adversary defenses. The GEK1500 is specifically designed to bridge the gap between short-range munitions and long-endurance aircraft, offering a cost-effective solution for systems that may not be expected to return from every mission.

Designing for “Limited Life” Operations

The GEK1500 represents a departure from traditional fighter engine design, which prioritizes durability over thousands of flight hours. Instead, this new engine is engineered for “limited life” applications. This design philosophy allows for significant cost reductions while maintaining the performance necessary for relevant combat ranges.

In a press statement, Steve Russell, Vice President of Combat Capability Systems at GE Aerospace, highlighted the engine’s developmental lineage:

“Lessons learned from recent GEK800 altitude testing are directly informing GEK1500… so we can meet CCA requirements without compromising affordability or schedule.”

The engine scales up the architecture of the smaller GEK800, an 800-pound thrust engine originally developed for cruise missiles. By leveraging this existing technology, the joint team aims to accelerate development timelines and mitigate technical risks.

Turbofan vs. Turbojet

A critical technical distinction of the GEK1500 is its turbofan architecture. While many existing small expendable systems utilize simpler turbojet engines, the Air Force requires greater fuel efficiency to extend the range of its CCA fleet.

According to reporting by Breaking Defense, GE Aerospace executive Craig Young noted that while turbojets are inexpensive, they lack the fuel efficiency required for the extended ranges demanded by modern combat scenarios.

Strategic Context: The “Expendable” Niche

The U.S. Air-Forces’s CCA program is generally divided into two categories: “attritable” systems, which are high-performance drones designed to return and fly again (such as those being developed by Anduril and General Atomics), and “expendable” systems, which are lower-cost assets designed for high-risk missions or one-way trips.

The GEK1500 targets the latter category. By focusing on the 1,500-pound thrust class, Kratos and GE are positioning this engine to power smaller drones, decoys, and next-generation cruise missiles. This sector of the market requires engines that are sophisticated enough to provide range and speed but cheap enough to be manufactured in high volumes.

AirPro News Analysis

We observe that this contract award signals a potential vertical integration shift for Kratos. Currently, Kratos platforms like the XQ-58A Valkyrie utilize commercial engines from third-party suppliers such as Williams International. By co-developing the GEK1500, Kratos is moving to secure its own supply chain for propulsion.

This move addresses a critical bottleneck in drone production: the availability of small, high-performance engines. If Kratos and GE can successfully mass-produce the GEK1500, they could dominate the propulsion market for the “low-end” CCA segment, distinct from the larger engines required for the Air Force’s Increment 1 “loyal wingman” drones.

Competitive Landscape

The development of the GEK1500 places Kratos and GE Aerospace in direct competition with other major industry players vying to power the Air Force’s future fleet. The 500 to 2,000-pound thrust class has become a hotbed of innovation.

• Manufacturers: Is currently developing the HON1600, leveraging its extensive background in auxiliary power units.
• Pratt & Whitney: Is working on a family of small engines ranging from 500 to 1,800 pounds of thrust.
• Williams International: Remains the incumbent leader, with its engines currently powering the XQ-58A Valkyrie and other prominent systems.

The Air Force has made it clear that it prioritizes high-performing, low-cost engines to enable disruptive capabilities. As the CCA program evolves, the ability to produce these engines at scale will likely determine which manufacturers secure long-term production contracts.

Sources:
Kratos Defense Press Release