Hydroplane

HardwareLancaster, CA, USAFounded 2020· One of 1818 Hardware companies tracked by AMPulse

Hydroplane is an aerospace company developing modular hydrogen fuel cell powerplants designed to decarbonize aviation and provide zero-emission mobile energy storage.

CEO / Founder: Dr. Anita Sengupta
Team Size: 11-50
Stage: Active
Total Funding: $72.0M
Latest Round: Grant
Key Investors: U.S. Air Force (AFWERX), U.S. Army, U.S. Navy, California Energy Commission

Technology & Products

Key Products

Modular hydrogen fuel cell powerplants for single-engine general aviation aircraft; hydrogen fuel cell-based ground power units (GPUs) and auxiliary power units (APUs); zero-emission mobile energy storage.

Technological Advantage

Utilizes proprietary additive manufacturing (3D printing) to create complex internal geometries that optimize thermal management and weight, resulting in a significantly higher power-to-weight ratio than standard fuel cells.

Differentiation

Value Proposition

Offers a zero-emission, high-endurance alternative to battery-electric systems with significantly faster refueling times and a modular 'drop-in' design that replaces traditional combustion engines.

How They Differentiate

Focuses on modular 'drop-in' hydrogen fuel cell powerplants specifically for single-engine general aviation aircraft (e.g., Piper Arrow), utilizing space-grade additive manufacturing for superior thermal management and power-to-weight ratios.

Market & Competition

Target Customers

General aviation aircraft owners, Urban Air Mobility (UAM) developers, regional airlines, and military branches (USAF, Army, Navy).

Industry Verticals

Aerospace, Defense, Clean Energy, Logistics & Transportation

Competitors

ZeroAvia, H2FLY, Beyond Aero

Growth & Milestones

Growth Metrics

Transitioned from R&D to prototype demonstration phase with over $70M in secured government and military backing.

Major Milestones

Founded in 2020 by former NASA JPL rocket scientist Dr. Anita Sengupta, Secured AFWERX Agility Prime contract for decarbonizing aviation in 2021, Successful ground testing of 200-kW modular hydrogen fuel cell powerplant in 2023, Awarded U.S. Navy SBIR Phase 2 for Ground Power Unit (GPU) development in Sept 2024, Secured $70M in military funding for additive manufacturing and propulsion development in Mar 2025

Notable Customers

U.S. Air Force, U.S. Army, U.S. Navy, U.S. Marine Corps

https://hydroplane.us

Why this company matters

AMPulse analysis, not a company disclosure

Hydroplane develops modular hydrogen fuel cell powerplants designed to replace combustion engines in single-engine general aviation aircraft. The company targets a gap in the market for zero-emission flight with higher endurance and faster refueling than battery-electric alternatives, positioning its technology for retrofit and new-build applications.

The core technology uses metal additive manufacturing to produce complex internal geometries within fuel cell stacks. This approach improves thermal management and reduces weight, yielding a higher power-to-weight ratio than conventional fuel cells adapted from ground-based systems. The powerplants are designed as drop-in replacements for traditional engines, such as those in a Piper Arrow, and are being scaled to 200 kW.

Hydroplane serves the U.S. Department of Defense as its primary customer, with contracts from the Air Force (AFWERX Agility Prime), Army (xTechSearch 8), Navy (SBIR Phase 2 for ground power units), and Marine Corps. The company also targets general aviation owners, urban air mobility developers, and regional airlines. A partnership with the University of Houston supports flight demonstration work, and the California Energy Commission has provided funding.

The company's strategic moat lies in its proprietary additive manufacturing process for fuel cell components and its early access to military procurement programs. Competition includes ZeroAvia, H2FLY, and Beyond Aero, which pursue similar hydrogen-electric propulsion but with different architectures. A key open question is whether Hydroplane can transition from government-funded prototypes to commercial production at a cost competitive with incumbent piston and turbine engines.