That's not a bonkers 3 wing airliner concept, this is a bonkers 3 (x3) wing airliner concept: https://upload.wikimedia.org/wikipedia/commons/f/fb/Caproni_Ca.60

That's not a bonkers 3 wing airliner concept, this is a bonkers 3 (x3) wing airliner concept: https://upload.wikimedia.org/wikipedia/commons/f/fb/Caproni_Ca.60_Transaereo_on_Lake_Maggiore_1921_%28NASM-SI-72-7669%29_%28tight_crop%2C_contrast_stretch%2C_grayscale%29.jpg https://upload.wikimedia.org/wikipedia/commons/f/fb/Caproni_... https://en.wikipedia.org/wiki/Caproni_Ca.60 https://en.wikipedia.org/wiki/Caproni_Ca.60