Maintenance Test Flight Class Room Text UH-1/AH-1G Series: Main Rotor Systems Standard & 540 By Books / Paperback History: Military › Vietnam War Publisher: U.S. Army Transportation School, Price $29.29 Free Shipping Send to a friend Used - Acceptable Acceptable condition. No date stated, ca. late 1960s/early 1970s. Writing inside. (Vietnam War, Helicopters, U.S. Army) $29.29 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.