John K. Strickland: The SpaceX Falcon Heavy Booster: Why Is It Important? In: National Space Society. September 2011, archiviert vom Original (nicht mehr online verfügbar) am 8. Oktober 2011; abgerufen am 16. Juni 2020: „Part of the Falcon Heavy flight efficiency is achieved by a method that has been known for decades, but no one else has been willing to attempt to implement it. This method is called propellant cross-feeding. All three Falcon boosters use full thrust at takeoff to lift the massive rocket. During flight, the outer two stages pump part of their propellant into the center stage. They thus run out of propellant faster than you would expect, but the result is that the center (core) stage has almost a full load of propellant at separation where it is already at altitude and at speed. Unfortunately, very little information has been released on the cross-feeding system to be used by the Falcon Heavy. It would only be used for payloads exceeding 50 metric tons.“
John K. Strickland: The SpaceX Falcon Heavy Booster: Why Is It Important? In: National Space Society. September 2011, archiviert vom Original (nicht mehr online verfügbar) am 8. Oktober 2011; abgerufen am 16. Juni 2020: „Part of the Falcon Heavy flight efficiency is achieved by a method that has been known for decades, but no one else has been willing to attempt to implement it. This method is called propellant cross-feeding. All three Falcon boosters use full thrust at takeoff to lift the massive rocket. During flight, the outer two stages pump part of their propellant into the center stage. They thus run out of propellant faster than you would expect, but the result is that the center (core) stage has almost a full load of propellant at separation where it is already at altitude and at speed. Unfortunately, very little information has been released on the cross-feeding system to be used by the Falcon Heavy. It would only be used for payloads exceeding 50 metric tons.“
