One of the earliest results of the Free-Fall Weapons Studies, the Hawkeye cluster weapon (the banded mandrel--internal structure--shown here); the submunitions were modified 2.75-inch rocket warheads, prompting the name change to Rockeye I, which was cancelled in favor of the Rockeye II (still in service); China Lake's "Eye" series of free-falls was a direct result of the Studies.