MQ-28 Ghost Bat vs XQ-58 Valkyrie

The Boeing MQ-28 Ghost Bat and Kratos XQ-58 Valkyrie reflect a strict divergence in uncrewed collaborative combat aircraft (CCA) doctrine. Australia’s Ghost Bat functions as a high-end, runway-dependent adjunct operating tightly with manned fighters and airborne early warning aircraft. The American Valkyrie operates as a low-cost, runway-independent attritable asset optimized for distributed operations and forward-deployed strikes.

Development and Design

Boeing Australia developed the MQ-28 as the RAAF’s Airpower Teaming System, producing the first sovereign Australian combat aircraft in 50 years. Its architecture centers on a modular mission nose, allowing ground crews to physically swap payloads for electronic warfare, ISR, or kinetic roles on the flight line. Kratos built the XQ-58 for the USAF Low Cost Attritable Strike Demonstrator (LCASD) program, aiming for a rigid $2–4 million unit cost. The Valkyrie’s design centers on expeditionary logistics. It launches from rails or shipping containers via rocket boosters and recovers using parachutes, removing the need for vulnerable concrete runways.

Specifications and Performances

While both platforms employ commercial-off-the-shelf turbofans, their flight profiles dictate different metrics. The 11.7-meter MQ-28 is sized closer to a manned fighter and requires higher subsonic speeds to maintain formation with F-35As and Super Hornets. This kinetic profile limits its range to 3,700 km. The smaller 9.1-meter XQ-58 relies on a Williams FJ33 engine producing 8 kN of thrust, prioritizing loiter time and distance over formation speed. It achieves a 5,600 km range at a 476-knot cruise speed. Weapon carriage architectures also differ fundamentally:

• The XQ-58 utilizes a 272 kg internal bay for GBU-39 Small Diameter Bombs or Altius-600 drones to maintain a low radar cross-section.
• The MQ-28 integrates medium-range effectors like the AIM-120 AMRAAM, serving as an external magazine that relies on off-board targeting data.

Deployment and usage

Neither aircraft has seen combat, but testing and procurement decisions define their operational trajectories. The MQ-28 operates as an extension of an established airborne battle management network. During a December 2025 live-fire event, an MQ-28 launched an AMRAAM using firing authorization from an E-7 Wedgetail and mid-course guidance from a Super Hornet. The XQ-58 is transitioning into a tactical strike and electronic attack asset. The U.S. Marine Corps selected the platform for its CCA program in January 2026, designating the MQ-58B variant for Suppression of Enemy Air Defenses (SEAD). The Valkyrie’s runway independence aligns directly with Marine Corps Expeditionary Advanced Base Operations (EABO), allowing remote launches from austere Pacific islands.

Conclusion

The XQ-58 Valkyrie holds the edge in contested logistics and distributed maritime campaigns. Its $4 million price tag and zero-runway footprint make it a viable, expendable SEAD asset for island-hopping environments where infrastructure will be destroyed. The MQ-28 Ghost Bat is the superior platform for integrated fleet defense and air superiority. Its larger airframe, nose modularity, and tight network integration with the E-7 Wedgetail make it a highly survivable force multiplier for established air forces operating from secured bases.