<prompt> Translate the following text to EnglishKwa kuwa F-18E ilikuwa aina ya ndege ya zamani ya F-18, msanidi programu alikuwa na ujuzi wa awali wa matatizo ya kubuni na utengenezaji.  <response>: Because the FA-18 EF was a variant of the older FA-18 aircraft, the developer had prior knowledge of design and manufacturing problems. 