Home Hydrogen Alaka’i’s Skai wants to be the fuel cell-powered aircraft of the people Alaka’i’s Skai wants to be the fuel cell-powered aircraft of the people 30 May 2019 | HydrogenNews Alaka’i’s Skai wants to be the fuel cell-powered aircraft of the people Skai, if built, would mark the first appearance of hydrogen fuel cell power in an aircraft.