Boom Supersonic  unveils $1.25B turbine backlog, first Superpower customer, and $300M new funding. Boom Supersonic announced major milestones this week, including a $1.25B backlog for its new Superpower natural-gas turbine, the reveal of its launch customer Crusoe , and the close of a $300M funding round led by Darsana Capital Partners LP .  The Superpower turbine, derived from the same extreme-temperature engine core being developed for Boom’s Symphony supersonic jet engine,