Patent ID: 9221546
Filing Date: 2015-12-29
Classification: B64C,B64D

Abstract:
1. A method of operating a hybrid fuel system of an aircraft, the method comprising: preparing the hybrid fuel system of the aircraft to receive fuel from a fuel source, the hybrid fuel system including a set of flexible bladders and a main tank; after the hybrid fuel system of the aircraft is prepared to receive fuel from a fuel source, providing fuel from the fuel source into a fuel containment space defined by the set of flexible bladders and the main tank while venting gas out of the set of flexible bladders into the main tank; and after fuel from the fuel source is provided into the fuel containment space, preparing the hybrid fuel system to deliver fuel to an engine of the aircraft; wherein each flexible bladder includes a venting end and a sealed end; and wherein providing fuel from the fuel source into the fuel containment space while venting gas out of the set of flexible bladders includes: