Operation Bumblebee - A Top Secret Missile Operation on Topsail

Operation Bumblebee was a top-secret, experimental project to develop and test ramjet missiles conducted by the US Navy. Operation Bumblebee started at the end of World War II, and led directly to the deployment of the operational Talos, Terrier, and Tartar missiles. Wikipedia here.

Driving up and down the island you can still see the observation towers along the shore.

The National Park Service has more information:

At the end of World War II the Navy established the US Naval Ordnance Test Facilities at Topsail Island, North Carolina, for Operation Bumblebee, a top-secret, experimental project to develop and test ramjet missiles, which advanced the Nation's jet aircraft and missile programs. So successful were the tests conducted at the Topsail Island site that the ramjet proved its value, opened the way for the advance of supersonic jet aircraft design and brought the United States to the threshold of modern space technology with the Talos, Terrier, Tartar and Sea Sparrow missiles aboard naval vessels. Named after a bumblebee, which although aerodynamically unable to fly, does not know this and flies anyway, this operation lead to the maturing of supersonic aircraft and shipboard missile design in the mid-20th century.

Topsail Island was the third of three widespread test sites established along the Atlantic seaboard in the closing years of World War II, and the first permanent ground for missile testing. The Topsail Island site, placed in operation in March 1947, incorporated rigid structures that were designed and built for specific uses related to the assembly, firing, monitoring and perfecting of experimental ramjet missiles. The buildings associated with this testing, the Assembly Building, Facility Control Tower and Observation Tower No. 2 possess exceptional importance because they are the only aboveground resources remaining at these three sites where the Nation's burgeoning ramjet missile program grew from experimentation to maturity. The Assembly Building is a one-and-a-half-story masonry building and the Control Tower is a three-story reinforced concrete building. Observation Tower #2 is an unaltered example of the seven instrument towers erected on Topsail Island.

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