ison ▁Engine ▁Company ▁purs ued ▁it ▁alone . ▁ ▁All ison ▁designed ▁a ▁new ▁wide - ch ord ▁sn ub ber less ▁( or ▁cla pper less ) ▁tit an ium ▁fan ▁and ▁low - press ure ▁tur bine . ▁In ▁March ▁ 1 9 9 0 , ▁it ▁was ▁selected ▁to ▁power ▁the ▁Em bra er ▁E MB - 1 4 5 ▁regional ▁jet ▁and ▁for ▁the ▁C ess na ▁C itation ▁X ▁in ▁September ▁ 1 9 9 0 . ▁Ten ▁months ▁after ▁the ▁programme ▁launch , ▁the ▁G MA 3 0 0 7 ▁was ▁first ▁ground ▁tested ▁in ▁mid - 1 9 9 1 ▁and ▁flight - test ed ▁on ▁a ▁C ess na ▁C itation ▁by ▁mid - 1 9 9 2 . ▁In ▁ 1 9 9 5 , ▁Roll s - Ro y ce ▁bought ▁All ison ▁Engine ▁Company ▁and ▁the ▁engine ▁had ▁its ▁first ▁flight ▁on ▁the ▁E MB - 1 4 5 . ▁The ▁C itation ▁X ▁ ▁A E 3 0 0 7 C ▁was ▁certific ated ▁by ▁the ▁F AA ▁in ▁February ▁ 1 9 9 5 ▁before ▁the ▁ ▁E MB - 1 4 5 ▁ ▁A E 3 0 0 7 A ▁in ▁mid - 1 9 9 6 . ▁ ▁In ▁ 1 9 9 5 , ▁Te led y ne ▁Ryan ▁selected ▁the ▁A E 3 0 0 7 H ▁for ▁the ▁Tier ▁II + ▁un mann ed ▁surve ill ance ▁aircraft ▁( now ▁the ▁North rop ▁Gr um