<prompt> Yenza inguqulo eyinkimbinkimbi yalesi sigwebo Ngemva nje kwezinyanga ezine kukhishwe imfuneko ye-tanker, i-USAF yayala ama-KC-135 okuqala angama-29 kwaBoeing.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Kuphela izinyanga ezine ngemva kokukhipha imfuneko ye-tanker, i-USAF yayala ama-KC-135 okuqala angu-29 avela e-westjet amatshe iphrojekthi ye-DC-8, uDouglas wanquma ukuthi kungcono ukuqhubeka kunokuyeka. 