I'm writing about The Boeing KC-135 Stratotanker is an aerial refueling tanker aircraft ,first manufactured in 1956 and expected to remain in service into the 2040s.It is derived from the original boeing jet transport " proof of concept "demnostrator,the boeing 367-80 commonly call the " Dash-80 ".As such ,it has a narrower fuselage and is shorter then the boeing 707 jetliner