Overview
- Heart’s X1 demonstrator flew for 27 minutes with one pilot, climbed to about 1,100 feet, and ran entirely on battery power while drawing roughly one megawatt of propulsion power.
- Heart reported the test used about $5 of electricity but said that figure covers only raw energy and excludes crew, maintenance, battery wear, insurance and other airline operating costs.
- The X1 is a flight test platform meant to feed data into the ES‑30 program; Heart says the ES‑30 would travel about 125 miles on batteries alone and roughly 500 miles with a combustion range extender.
- Heart is assembling a pre‑production ES‑30 in Los Angeles and targets flight testing in 2028 and commercial entry in 2031, but those dates are company targets that depend on technical progress and certification approvals.
- Industry interest is high and Heart cites about $9.4 billion in customer commitments and bids from carriers, yet battery energy‑density limits remain the core constraint that the X1 test advances without fully solving.