SAA has changed equipment on the ATL-CPT-JNB flights. They have switched from 747-400s to Airbus 340-600s. The 747's (still used from JFK) have among the best first class seats available - like the original Swissair with moveable ottoman and single row beds - the Airbus has 2 classes - premium class has 2-2-2 lie flat seats with up to date entertainment options - comfortable seating, but insuffient lav space for the morning rush. Major downside - Airbus requires refueling in both directions on all flights! Last month, we were on the plane for 21 1/2 hours to JNB including a CPT stop. We never had to refuel on East bound flight on 747s