ONR Awards $3.74M Contract to Advance Firefly UAS for Naval Missions

Parallel Flight Technologies advances its heavy-lift Firefly UAS with hybrid power, heavy fuel capability, and maritime features to support naval logistics, surveillance, and next-generation unmanned operations By Olivia Hannam / 15 Sep 2025

Cargo Drones

Discover cutting-edge solutions from 5 leading global suppliers
SUPPLIER SPOTLIGHT
ONR Awards $3.74M Contract to Advance Firefly UAS for Naval Missions
Follow DA

Parallel Flight Technologies (PFT), a leader in heavy-lift, hybrid-powered unmanned aerial systems, has been awarded a $3.74 million Sequential Phase II SBIR contract from the Office of Naval Research (ONR), to modify its flagship Firefly UAS for maritime operations.

The contract, funded by the ONR, marks a significant milestone in expanding the UAS’s mission versatility for deployment in harsh marine environments to support maritime logistics, littoral surveillance, and ONR RDT&E activities.

The maritime-capable Firefly will support advanced naval missions, including mine countermeasures, underwater vehicle detection, and hydrographic surveys, addressing a critical capability gap with a cost-effective, domestically produced, long-range VTOL solution. Commercial applications are also on the horizon. Firefly’s extended endurance, VTOL design, and heavy payload capacity position it as a high-impact solution for offshore logistics, medical delivery, island resupply, and more.

Craig Stevens, CEO of PFT, stated, “This contract is not just about building a better drone. It’s about exploring the full potential of our parallel hybrid electric propulsion technology to increase the utility of unmanned systems for the military and industry, alike.”

Under the contract, the maritime Firefly will be modified to operate from naval vessels with features such as heavy fuel (JP-5) compatibility, advanced deck-landing sensors, saltwater corrosion protection, flotation devices, deck-locking mechanisms, and expanded Beyond Visual Line of Sight (BVLOS) testing.

PTF’s NDAA-compliant Firefly is produced in the USA and widely regarded as a “heavy-lift workhorse.” A two-person-portable quadcopter that fits in the back of a pickup truck, Firefly is optimized for expeditionary defense and industrial missions. Its patented Parallel Hybrid Electric Multirotor (PHEM) propulsion system enables payloads up to 100 lb (45 kg) and endurance 10x greater than all-electric UAS, while also supplying 2 kW of continuous in-flight power to payloads. The platform is protected by five patents and supported by DIU, USDA, NASA, and NSF.

Stevens added, “This award is a powerful vote of confidence in the technology we’re building at Parallel Flight. It validates our hybrid powertrain architecture and demonstrates enthusiasm for Firefly as a next-generation UAS platform. The maritime Firefly is just the beginning—this dual-use technology will not only expand critical military capabilities, but also unlock a wide range of public and commercial opportunities, from logistics and disaster response to environmental monitoring and precision agriculture.

Posted by Olivia Hannam Olivia is a Junior Editor and Copywriter at Defense Advancement. She graduated with First-Class Honours in History from the University of Exeter, where she developed a strong passion for research and clear communication. Since joining DA in 2025, Olivia’s focus lies in producing insightful content that highlights the latest developments and innovations shaping the defense sector, with a particular interest in naval technology and maritime defense. Connect
Advancing Defense Capability Through Strategic Collaboration Defense Advancement works with major OEMs to foster collaboration and increase engagement with SMEs, to accelerate innovation and drive defense capabilities forward.