Service flight development of the first U.S. Marine Corps Bell AH-1Z attack helicopter of 180 AH-1Ws being remanufactured by Bell Helicopter Textron, began in March at NAS Patuxent River, Md., following initial contractor flight testing at Bell's Arlington, Texas, R&D facility from last December. One hundred UH/HH-1N utility helicopters also are scheduled for similar upgrades as UH-1Ys, in the USMC's H-1 rebuild program. As well as major improvements in performance, operational ...

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