Los Angeles Pilot Plant
Torrance, CA
Company
Meet Heart Aerospace.
Who we are
- Founded in 2019. Member of Y Combinator’s W19 batch.
- Headquartered in Torrance, California, in the heart of the LA aerospace ecosystem.
- Backed by $190 million in mission-aligned capital supporting next-generation aviation.
What we do
- Developing hybrid-electric regional commercial aircraft designed to make short-haul air travel lower cost and cleaner.
- Combining electrification, software, and modern manufacturing to create a new cost structure for commercial aviation.
- Building toward commercial service with an iterative aircraft development program.
How we work
- Iterative model focused on rapid learning and validation.
- Continuous testing and real-world demonstrations to mature the concept.
- Progressive validation path toward ES-30 certification and entry into service.
Where we work
Propulsion Test Site
Oxnard, CA
X1 Flight Test Base
Plattsburgh, NY
Milestones
A journey toward electric flight.
Y Combinator
Heart Aerospace joined Y Combinator’s W19 batch. It is one of YC’s few hardtech companies.
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Hangar Day 2020
Our first Hangar Day, showcasing progress on the ES regional aircraft series to airlines, investors, and the world.
Series A fundraise
Raised $35M Series A led by Bill Gates’ Breakthrough Energy Ventures, with strategic investment from United Airlines and Mesa Air Group.
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First subscale test flight
Validated the flight characteristics and electric propulsion performance of the ES regional aircraft using a subscale demonstrator.
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Hangar Day 2022
Unveiled the ES-30, Heart’s first production aircraft.
Series B fundraise
Raised $107M Series B to build the Heart X1 demonstrator and advance the ES-30 program.
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LA R&D Center opening
Opened our Los Angeles R&D center to tap into the region’s world-class aerospace and engineering talent.
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Rollout of the Heart X1 demonstrator
Unveiled the Heart X1, a full-scale technology demonstrator aircraft.
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Hangar Day 2024
Welcomed airlines, investors, partners, and regulators inside Heart’s hangar for a close-up look at X1 and the company’s path ahead.
X1 ground service tests
Heart completed full-scale ground handling and charging procedure tests to validate operational workflows for electric aviation.
US flight test base established
Established our X1 flight test base at Plattsburgh, NY, marking the start of the demonstrator flight test campaign.
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Headquarters move to Los Angeles
Relocated Heart’s corporate headquarters to Los Angeles, anchoring the company in the world’s leading aerospace ecosystem.
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LAPP comes online
Launched the Los Angeles Pilot Plant, Heart’s pre-production aircraft manufacturing facility.
