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Suppliers: Hybrid Propulsion
Honeywell Aerospace
BVLOS Solutions for UAS & UAM: Fuel Cells, Radar, Navigation Sensors, Flight Control & SATCOM
Platinum Partner
INF Inject
Advanced EFI Drone Propulsion Solutions for Commercial & Industrial UAV Platforms
Gold Partner
H3 Dynamics
Enablers of Long-Range Hydrogen Electric Flight | Hydrogen Solutions for UAVs; Lightweight PEM Fuel Cells & Mobile Hydrogen Refueling Stations
Gold Partner
Products
Hybrid Propulsion for UAV, USV, UUV, UGV
Hybrid propulsion systems combine two or more energy sources to provide power, and are used in a wide range of unmanned systems, including UAVs (unmanned aerial vehicles), UGVs (unmanned ground vehicles), USVs (unmanned surface vessels), and UUVs (unmanned underwater vehicles).
Hybrid Drone Engines & Fuel Systems
SP-55 FI TS Fuel Injected Single-Cylinder Hybrid Engine for UAV by Sky Power
The most common form of hybrid propulsion system uses a piston-driven or rotary internal combustion engine, running on gasoline or diesel, as a generator to provide electric power that can drive motors. The system may also include a battery that can be used to provide support during times when peak power load is required, and may also be used for redundancy in the case of system failure. Some hybrid systems provide the option to use the engine either for mechanical shaft power or electricity generation.
Benefits of Hybrid Propulsion
Hybrid gas-electric propulsion systems can significantly increase mission endurance and cost-effectiveness for drones and unmanned vehicles. They can improve fuel economy and reduce reliance on non-renewable fuels. They may also provide drones with a “silent mode” that allows them to loiter over an area of interest with minimal acoustic signature.
Hybrid propulsion systems may use a hydrogen fuel cell as the main generator of electricity. This can be used to recharge the battery during operation, and has the additional advantage of being emissions-free.
Hybrid Solar-Electric Systems
Some hybrid systems may also incorporate solar panels that can be used during the daytime to charge batteries that are then used to provide power to the system at night. Hybrid solar-electric systems are commonly used on long-endurance USVs and ASVs (autonomous surface vessels) that undertake missions such as ocean mapping and environmental monitoring. They are also incorporated into stratospheric UAVs, also known as HAPS (high-altitude pseudo-satellites), which fly above the clouds and can harness more solar energy than UAVs operating closer to the Earth’s surface.
