![](https://www.historynet.com/wp-content/uploads/2017/03/Sam-dart-960_640.jpg)
Convair chief test pilot Ellis “Sam” Shannon beaches an XF2Y-1 Sea Dart after taxi tests in San Diego Bay on December 17, 1952. (National Archives)
Convair chief test pilot Ellis “Sam” Shannon beaches an XF2Y-1 Sea Dart after taxi tests in San Diego Bay on December 17, 1952. (National Archives)