Exhibit 11.1 ROHR, INC. AND SUBSIDIARIES --------------------------- CALCULATION OF PRIMARY NET INCOME PER SHARE OF COMMON STOCK ----------------------------------------------------------- (in thousands except per share data) Year Ended July 31, ----------------------------------------------------------- 1996 1995 1994 1993 1992 ---------- ------------ ------------ ---------- ----------- Net income (loss) from continuing operations before extraordinary item and cumulative effect of accounting changes $ 3,228 $ 8,493 $ 4,669 $ (24,257) $ 996 Income (loss) from discontinued operations, net of taxes 3,879 2,258 (6,324) 459 Loss from extraordinary item, net of taxes (1,146) Cumulative effect of accounting changes, net of taxes (223,950) ------- ------- ------- --------- ------- Net income (loss) applicable to primary earnings per common share $ 3,228 $11,226 $ 6,927 $(254,531) $ 1,455 ======= ======= ======= ========= ======= Common stock and common stock equivalents: Average shares of common stock outstanding during the year 20,157 18,055 18,017 17,908 17,647 Net effect of common stock equivalents (principally stock options and rights) 657 158 45 1 63 ------- ------- ------- --------- ------- Total common stock and common stock equivalents 20,814 18,213 18,062 17,909 17,710 ======= ======= ======= ========= ======= Net income (loss) per average share of common stock: Net income (loss) from continuing operations before extraordinary item and cumulative effect of accounting changes $ 0.16 $ 0.47 $ 0.26 $ (1.35) $ 0.05 Income (loss) from discontinued operations, net of taxes 0.21 0.12 (0.36) 0.03 Extraordinary item, net of taxes (0.06) Cumulative effect of accounting changes - net of taxes (12.50) ------- ------- ------- --------- ------- Primary net income (loss) per share $ 0.16 $ 0.62 $ 0.38 $ (14.21) $ 0.08 ======= ======= ======= ========= =======