![](https://www.historynet.com/wp-content/uploads/2010/11/TDR-1-960_640.jpg)
“Edna III” a US Navy TDR-1 attack drone is readied for launch from an airbase in the Soloman Islands. In Late 1944, aircraft like these guided by a specially equipped TBM Avenger control aircraft carried out a number of attacks against dug in Japanese positions. (National Archives)