The Marine Corps expects to receive the last delivery of its AH-1Z Viper by early 2022, according to the manager of the Light/Attack Helicopter Program. Col. David Walsh told reporters this week the service plans to retire the AH-1W Super Cobra as it rolls out the new Viper. During a luncheon hosted by the National Defense Industrial Association, Walsh said the Marine Corps has finished purchasing the UH-1Y Venom aircraft and is "a little more than halfway through buying" the...