<prompt> Translate the following text to EnglishF-18E na F-15E walikuwa na asilimia 56 ya michoro yao kukamilika na pia walikuwa na zaidi ya asilimia 90 ya michoro yake ya kiunganishi cha ngazi ya juu kukamilika, kuongeza uaminifu katika kubuni mfumo.  <response>: The FA-18EF had 56 percent of its drawings completed and also had over 90 percent of its higher level interface drawings completed, adding confidence in the system design. 