| first air force wikipedia | 1.48 | 0.8 | 470 | 25 | 73 |
| what was the first air force | 0.97 | 0.5 | 8872 | 28 | 84 |
| first air force usaf | 0.68 | 0.2 | 1880 | 20 | 70 |
| first air force 1 | 0.58 | 0.2 | 9407 | 17 | 33 |
| first air force in the world | 1.63 | 0.7 | 7926 | 28 | 54 |
| when was the first air force made | 1.78 | 0.2 | 1033 | 33 | 91 |
| history of the air force 1 | 1.62 | 0.7 | 7326 | 26 | 49 |
| air force first year | 0.98 | 1 | 6982 | 20 | 86 |
| united states air force wikipedia history | 0.96 | 0.2 | 7257 | 41 | 82 |
| history of the air force | 0.02 | 0.1 | 6005 | 24 | 28 |
| origin of the air force | 0.88 | 0.9 | 1580 | 23 | 8 |
| what was the first air force one | 0.88 | 0.3 | 3876 | 32 | 69 |
| what was the first air force 1 | 0.43 | 0.1 | 7883 | 30 | 43 |
| what was the first air force one plane | 0.33 | 0.1 | 4605 | 38 | 17 |
| what was the first air force base | 0.37 | 0.4 | 3422 | 33 | 5 |
