每日英語:Ifclearskies......

每日英語:Ifclearskies......

IfclearskiesbreakoversouthernCaliforniaonMonday,aB-52bomberwilltakeofffromEdwardsairforcebaseandheadoutoverthePacific.Slungbeneathitsrightwingwillbeanexperimentalpilotlessplane,knowntoNASAastheX-43A,designedtobreakrecordsbyflyingat10timesthespeedofsound.Thetestflightistoprovethathypersonicflightispossible,andwithitthedreamofplanescapableofflyingfromLondontoSydneyintwohours.

如果周一南加州天色晴朗,一架B-52轟炸機將從愛德華茲空軍基地起飛,飛向太平洋。它右翼懸吊着太空總署用來創造十倍音速飛行紀錄的X-43A實驗型無人駕駛機。試飛是要證明高超音速飛行可行,實現兩小時內從倫敦飛抵悉尼的夢想。