Startup SiriNor just completed ground testing of its revolutionary emission-free electric jet engine, which could change the entire air travel industry. The company, based in India and Norway, ...
Astro Mechanica’s ground demonstrator, based on a GE CT7 turboshaft, drives a generator powering two propulsors. Credit: Astro Mechanica U.S. startup Astro Mechanica plans to take its hybrid-electric ...