H3X Technologies

The lightest electric aircraft motors in the world.

Y CombinatorWinter 2021ActiveIndustrialsAviation and SpaceAirplanesClimateElectric Vehicles

What they do

Problem

Electric aircraft need propulsion systems that are powerful yet lightweight enough to make electrified flight practical at scale.

Solution

H3X builds ultra-light, high-power integrated electric aircraft propulsion units combining motor, inverter, and gearbox into a single package.

Who it's for

Aircraft manufacturers and aviation OEMs developing electric or hybrid-electric aircraft.

Founders

Eric Maciolek

Founder

I am responsible for all operations and mechanical design at H3X. In prior roles, I have led projects developing control systems for electric and hybrid powertrain systems from the ground up. I have a BS in Mechanical Engineering from University of Wisconsin-Madison. I come from a proud heritage of craftsmen – from butchers and bakers to electricians and steamfitters. This unique background has enabled me to bridge the gap between advanced engineering theory to practical and scalable solutions.

Jason Sylvestre

Founder

Co-founder & CEO of H3X Technologies. Ex- Specter, Tesla, MTS. MS and BS in Electrical Engineering from University of Wisconsin-Madison. Built electric racecars in college (FSAE).