Upgrade of Israeli CH-53 completed
The Israeli Air Force’s 23 CH-53 helicopters have all been upgraded with new mission systems and avionics. The exercise started in 2006 and will allow the rotorcraft to continue flying till 2025.
By user:Nehemia G (Own work) [CC BY-SA 2.5], via Wikimedia Commons
Source: Upgrade of Israeli CH-53 completed