of ort ress , ▁F - 4 ▁and ▁R F - 4 ▁Ph antom ▁II , ▁the ▁F - 1 1 1 ▁and ▁FB - 1 1 1 , ▁C - 1 4 1 ▁Star l if ter ▁and ▁C - 5 ▁Gal axy , ▁all ▁became ▁main st ays ▁in ▁the ▁US AF ▁oper ational ▁invent ory . ▁Another ▁aircraft ▁gained ▁world ▁fame ▁in ▁the ▁late ▁ 1 9 6 0 s ▁at ▁Edwards : ▁the ▁Lock he ed ▁Y F - 1 2 A , ▁a ▁prec ursor ▁to ▁the ▁SR - 7 1 ▁Black bird , ▁sh atter ed ▁nine ▁records ▁in ▁one ▁day ▁of ▁testing ▁at ▁Edwards . ▁The ▁SR - 7 1 ' s ▁full ▁capabilities ▁remain ▁class ified , ▁but ▁the ▁records ▁set ▁on ▁ 1 ▁May ▁ 1 9 6 5 ▁included ▁a ▁sust ained ▁speed ▁of ▁ ▁and ▁an ▁alt itude ▁of ▁. ▁ ▁New ▁aircraft ▁types ▁arrived ▁in ▁the ▁ 1 9 7 0 s : ▁the ▁F - 1 5 ▁E agle ▁with ▁its ▁advanced ▁engine ▁and ▁fire - control ▁system ; ▁the ▁single - engine ▁F - 1 6 ▁Fight ing ▁Fal con ▁with ▁its ▁revolution ary ▁" fly - by - wire " ▁flight ▁control ▁system ; ▁and ▁the ▁B - 1 ▁Lan cer ▁with ▁its ▁mult itude ▁of ▁highly ▁s oph istic ated ▁off ensive ▁and ▁def ensive ▁systems . ▁These ▁plan es ▁more ▁than ▁bore ▁out ▁the ▁prop he cy ▁concerning ▁the ▁ever - in cre asing ▁importance ▁of