NAI TECHNOLOGIES, INC. RATIO OF EARNINGS TO FIXED CHARGES (IN THOUSANDS OF DOLLARS) FIRST QUARTER YEAR ENDED DECEMBER 31, -------------------------- ---------------------------------------- 1995 1996 1991 1992 1993 1994 1995 ------- ----- ------ ------ ------ -------- -------- Income (loss from continuing operations).......... ($1,094) ($450) $3,900 $5,051 $5,455 ($11,591) ($11,619) Income taxes (benefit)............................. 86 135 1,684 2,920 2,840 (4,392) 377 ------- ----- ------ ------ ------ -------- -------- Income (loss) from continuing operations before income taxes..................................... (1,008) (315) 5,584 7,971 8,295 (15,983) (11,242) ------- ----- ------ ------ ------ -------- -------- Add fixed charges: Interest expense............................... 394 565 782 619 786 1,477 1,662 Deferred debt expense.......................... -- 55 -- -- -- -- 900 ------- ----- ------ ------ ------ -------- -------- Total fixed charges................................ 394 620 782 619 786 1,477 2,562 ------- ----- ------ ------ ------ -------- -------- Total income (loss) and fixed charges.............. ($ 614) $ 305 $6,366 $8,590 $9,081 ($14,506) ($ 8,680) ------- ----- ------ ------ ------ -------- -------- ------- ----- ------ ------ ------ -------- -------- Ratio.............................................. (1.56) 0.49 8.14 13.88 11.55 * * ------- ----- ------ ------ ------ -------- -------- ------- ----- ------ ------ ------ -------- -------- - ------------ * Earnings are inadequate to cover fixed charges. The coverage deficiency is $1,008 for the 1st quarter of 1995, $315 for the 1st quarter of 1996, $15,983 for 1994 and $11,242 for 1995.