📽️🛩️The Wright Whirlwind J5c was the jewel of the spirit St. Louis. (Model NYP). It was a radial type air cooled engine that had proven itself during 50 hours endurance flights without failure or loss of performance. It was so good infact, that the majority of competitors selected it as their powerplant As opposed to the hulking large oil-cooled engines of world war I. 🌍 It was SO reliable, that the company created a special series 'c' for commercial use for the Orteig Prize competition. ✈️ WHAT DO YOU NOTICE in these photos? @Frank Kraljic @Pace Ellsworth