With the Boeing 747 Jumbo out of production, the United States Air Force has confirmed it will purchase two ex-Lufthansa Boeing 747-8 aircraft. These are to be used as trainers and for spare parts, as the force prepares to bring its VC-25B VIP Air Force One aircraft into service. It may make sense to procure extra aircraft for spares, although it’s unclear if the USAF sees any other potential role for the aircraft.