50 Amazing Facts About The A-10 Thunderbolt Engine Location The Air Force nearly chose the Northrop YA-9A over the A-10. The deciding factor was that the engines, mounted to the root of the wings, and the single tail were too vulnerable. Up Next: More amazing facts about the A-10 Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50