The Lockheed P-38 Lightning could have been a very different looking aeroplane! These are some conceptual models considered in 1937, when the project was still in discussion. Certainly some 'blue sky thinking' evident in the mind of designers “Kelly” Johnson and Hall Hibbard! pic.twitter.com/RYo5A1S7E9

— Trev Clark's Obscure Aviation History 🚁 (@clark_aviation) September 28, 2021