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, ------------------------------------------------------ 1994 1993 1992 1991 1990 ------- ---------- -------- --------- -------- Net Income (loss) from continuing operations before cumulative effect of accounting changes $ 4,669 $ (24,257) $ 996 $28,566 $ (442) Income (loss) from discontinued operations, net of taxes 2,258 (6,324) 459 1,951 481 Cumulative effect of accounting changes, net of taxes - (223,950) - - - ------- --------- ------- ------- ------- Net income (loss) applicable to primary earnings per common share $ 6,927 (254,531) $ 1,455 $30,517 $ 39 ======= ========= ======= ======= ======= Common stock and common stock equivalents: Average shares of common stock outstanding during the year 18,017 17,908 17,647 17,502 17,752 Net effect of common stock equivalents (principally stock options and rights) 45 1 63 23 35 ------- --------- ------- ------- ------- Total common stock and common stock and equivalents 18,062 17,909 17,710 17,525 17,787 ======= ========= ======= ======= ======= Net income (loss) per average share of common stock: Net income (loss) from continuing operations before cumulative effect of accounting changes $ 0.26 $ (1.35) $ 0.05 $ 1.63 $ (0.02) Income (loss) from discontinued operations, net of taxes 0.12 (0.36) 0.03 0.11 0.02 Cumulative effect of accounting changes - net of taxes (12.50) ------- --------- ------- ------- ------- Primary net income (loss) per share $ 0.38 $ (14.21) $ 0.08 $ 1.74 $ 0.00 ======= ========= ======= ======= =======