Control Stick for the F-106 Delta Dart. A unique control stick. The left grip could be locked, control radar and infra red functions, while the fixed right grip performed the normal flying functions of the stick grip. It was the main reason why the F-106A was a single seat aircraft. It eliminated the need for a separate radar systems operator (RSO) or weapons systems operator (WSO). Scanned from T.O. 1F-106A-1. [Tom Denton collection]