▁about ▁ ▁above ▁ground ▁level ▁at ▁ 1 5 0 ▁K I AS . ▁ ▁The ▁seat ▁performance ▁is ▁in ▁accord ance ▁with ▁M IL - S - 9 4 7 9 ▁as ▁tail ored ▁for ▁each ▁aircraft ▁application . ▁Ex cell ent ▁terrain ▁clear ance ▁performance ▁under ▁ 2 5 0 ▁K E AS ▁is ▁achieved ▁by ▁deploy ing ▁the ▁main ▁par ach ute ▁immediately ▁after ▁exit ing ▁the ▁co ck pit . ▁ ▁It ▁is ▁the ▁only ▁e jection ▁seat ▁that ▁can ▁deploy ▁the ▁main ▁par ach ute ▁this ▁early ▁in ▁the ▁e jection ▁sequence . ▁ ▁The ▁AC ES ▁seat ▁was ▁originally ▁developed ▁and ▁produced ▁in ▁Long ▁Beach , ▁CA ▁by ▁Mc D onn ell ▁Douglas . ▁ ▁We ber ▁A ircraft ▁company ▁also ▁produced ▁the ▁seat ▁as ▁part ▁of ▁a ▁US AF ▁mand ated ▁" le ader / follow er " ▁program . ▁ ▁In ▁the ▁late ▁ 1 9 8 0 s ▁the ▁Mc D onn ell ▁Douglas ▁production ▁line ▁was ▁re located ▁from ▁Long ▁Beach , ▁CA ▁to ▁Tit us ville , ▁F L . ▁ ▁The ▁We ber ▁A ircraft ▁AC ES ▁production ▁line ▁eventually ▁closed ▁as ▁US AF ▁needs ▁for ▁e jection ▁seats ▁decl ined . ▁ ▁In ▁the ▁late ▁ 1 9 9 0 s , ▁Bo eing ▁and ▁Mc D onn ell ▁Douglas ▁merged ▁with ▁the ▁combined ▁company ▁retain ing ▁the ▁Bo eing ▁name . ▁ ▁In ▁ 1 9 9 9 , ▁Good rich ▁acquired ▁the ▁AC ES ▁product ▁line ▁from ▁Bo