Air Force One final approach to Mildenhall (RAF) SHORT VERSION."BUTTER!"

Before going to bed, we set up our "Simbrief flight plan, set up all the navigation data and entered into the FMS. After take off and auto pilot it was bed time. Leaving the sim to run. Six hours later found this B747-400 approaching T/D (Top of Decent), auto approach until the last 300 feet.