Lockheed Model 14-N2 Super Electra, NX18973, cn 1491 cutaway drawing, NYPL Published on July 10, 2013 in 10–14 July 1938Full resolution (920 × 663) ← Previous Next → a cutaway drawing of Howard Hughes’ Lockheed Model 14-N2 super Electra, NX18973. (New York Public Library)