F-106A 57-2453 and 57-2463 of the 186th FIS 120th FIG, Montana ANG Great Falls, F-106A 57-2499 of the 101st FIS 102 FIW, Otis AFB MA in the background and an unidentified F-106A of the 49th FIS Griffiss AFB, NY in 1978 during William Tell 78 Tyndall AFB FL. 57-2453 has a Falcon WSEM simulator for the fire control system.