Bell completes first SPINE upgrades on USMC AH-1Z Viper and UH-1Y Venom
Bell has finished the first SPINE structural and power-delivery upgrades on an AH-1Z Viper and UH-1Y Venom for the U.S. Marine Corps. Both helicopters are at Naval Air Station Patuxent River for flight testing to validate changes aimed at improving survivability, lethality and future weapons growth.