The Air Force recently proved through a series of tests that its KC-135 Stratotanker aircraft can fly more efficiently just by mounting the cockpit window’s wiper blades vertically instead of horizontally. The potential fuel cost savings: about $7 million per year.
Read more: https://www.military.com/daily-news/2020/04/28/air-force-announces-it-can-save-7-million-adjusting-one-planes-windshield-wipers.html
