The #Pentagon’s costly fleet of #F35#fighterjets can only fly a little over half the time, as #maintenance issues keep the aircraft on the ground despite the growing# reliance on the #planes by the US and its allies.The fleet’s mission-capable rate or the % of time a plane can perform one of its assigned missions was 55 % as of March 2023, far below the Pentagon’s goal of 85 to 90% the GAO report - https://www.gao.gov/products/gao-23-105341#defense#govdocs
