Deliveries of F-35 Joint Strike Fighter aircraft are on track to resume this summer, albeit with a truncated version of Technology Refresh-3 software upgrades, top Lockheed Martin executives told shareholders today during a call to discuss the company's first-quarter earnings. The not-yet-complete, or “combat training capable configuration,” tranche may arrive at squadrons by the third quarter of 2024, but fully combat-coded TR-3 deliveries won’t begin until 2025, said Jim Taiclet, Lockheed Martin’s chief executive officer. The idea is to get...