F-106B 57-2516, NASA N816N unpainted bare metal with Vortex Flap and Inflight Visualization research mod at Langley Research Center. Note former 5th FIS Minot AFB ND F-106B 57-2545 & 48th FIS Langley AFB VA F-106A 59-0123 in foreground used for parts. [NASA photo L-94-4549 via Brian Nicklas]