A direct descendant of the AH-1 Cobra, the Bell AH-1Z Viper is the evolution of America ... Huey and Cobra with a revolutionary four-bladed rotor for superior combat performance.

The last AH-1W was delivered in 1998. The AH-1W is being replaced by the AH-1Z, starting in 2006 as part of a remanufacture program. The Last AH-1W is expected to be replaced in 2020. AH-1Ws are ...