NASA Boeing-Aero Spacelines 377SGT Super Guppy Turbine N941NA (msn 004) BFI (Duncan Kirk). Image: 908932. Posted on July 29, 2012 by Bruce Drum Posted in NASA Tagged 004, Aero Spaceline 377SGT Super Guppy Turbine, Aero Spacelines, Aero Spacelines 377SGT, BFI, Boeing Field, N941NA, NASA, photo, Seattle Leave a comment Copyright Photo: Duncan Kirk.