20th US Navy F-18 Enters Block III Upgrade Program
ST. LOUIS — Boeing has inducted its 20th F/A-18 Super Hornet into Service Life Modification (SLM) supporting U.S. Navy readiness needs for mission-capable aircraft. Two SLM jets have already been delivered back to the Navy.
Initially, SLM will extend the life of Super Hornets from 6,000 to 7,50…
