Heart Aerospace unveils the ES-36 hybrid aircraft as JSX secures fifty orders.

Heart Aerospace has unveiled the ES-36, a 36-seat hybrid-electric regional aircraft replacing the previously announced 30-seat ES-30. The redesigned aircraft adds six seats and 1,415 pounds of payload capacity while retaining the earlier model’s maximum takeoff weight and battery capacity, and its two-nacelle layout is intended to reduce drag, maintenance needs and operating costs. Twin powertrains each pair a 1.65-megawatt electric motor with a gas-turbine-powered turbogenerator, providing 125 miles of all-electric range and up to 745 miles in hybrid operation. JSX has converted its earlier agreement with Heart into a deposit-backed purchase commitment for 50 aircraft, with options for 50 more, as it seeks to serve short regional routes from airports where jet operations are constrained.
Heart Aerospace says the ES-36 is designed to deliver operating costs 40 percent below those of legacy regional aircraft, matching the target previously set for the ES-30.
The two-nacelle configuration is intended not only to reduce maintenance needs but also to cut drag, simplify hybrid-propulsion integration and enable a smaller wing.
Heart CTO Ben Stabler said the ES-36 resulted directly from lessons learned while designing, building, testing and flying the company’s X1 demonstrator, which he said made the production aircraft more capable and productive for operators.
JSX’s purchase commitment also secures early delivery positions for the airline, according to the report detailing the agreement.
JSX primarily operates Embraer ERJ135 and ERJ145 jets and has recently begun using ATR turboprops as it develops regional service from constrained airports such as Santa Monica, where jets face difficulty meeting noise limits.
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