Headwinds For Zunum Aero Back in May 2018, JetForums wrote an article about a company called Zunum Aero that was seeking to build a passenger hybrid-electric jet. JetSuite was supposed to be the launch customer by placing an order for a significant number of the jets. Back then Zunum had backing from both Boeing and JetBlue Venture Technologies but they both seem to have left the venture. This has left Zunum Aero the task of finding more investors. Boeing seemingly pulled out from the board of Zunum when its representative quietly stepped down.