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Retired Boeing 747 to become testbed for revolutionary new engines
- Kaibeezy 7y agocool photo - https://dynaimage.cdn.cnn.com/cnn/q_auto,w_1100,c_fill,g_auto,h_619,ar_16:9/http%3A%2F%2Fcdn.cnn.com%2Fcnnnext%2Fdam%2Fassets%2F191015120254-rr-flying-testbed-ultrafan.jpg https://dynaimage.cdn.cnn.com/cnn/q_auto,w_1100,c_fill,g_aut...