Demo
    A transparent diagram of an airplane displaying internal components, including seats, electronic systems, engines, and other mechanical parts.
    To convert their turboprop aircraft into hybrid-electric planes with Universal Hydrogen’s kit, airlines would replace the engines with electric motors, shown in gray, made by magniX of Washington, and fuel cells, in blue, from Plug Power of New York. A few seats in the back of the aircraft would be removed to make room for cylindrical capsules, in blue, containing gaseous or liquid hydrogen.