1 EXHIBIT 11 AMERICAN AIRCARRIERS SUPPORT, INCORPORATED COMPUTATION OF NET INCOME PER COMMON SHARE (Unaudited) Three months Three months Nine months Nine months Ended Ended Ended Ended September 30, September 30, September 30, September 30, 1998 1997 1998 1997 ---------- ---------- ---------- ---------- Pro forma data: * Net income as reported $2,292,150 $1,213,881 $4,888,523 $2,993,208 Pro forma income tax expense 916,860 485,552 1,955,409 1,197,283 ---------- ---------- ---------- ---------- Pro forma net income $1,375,290 $ 728,329 $2,933,114 $1,795,925 ========== ========== ========== ========== Pro forma basic earnings per share $ 0.22 $ 0.18 $ 0.58 $ 0.44 ========== ========== ========== ========== Pro forma diluted earnings per share $ 0.22 $ 0.18 $ 0.58 $ 0.44 ========== ========== ========== ========== Pro forma weighted average shares outstanding: Basic 6,311,957 4,100,000 5,087,179 4,100,000 ========== ========== ========== ========== Diluted 6,311,957 4,100,000 5,087,179 4,100,000 ========== ========== ========== ========== * Reference note 2 for additional calculations.