Originally Posted by ChamplinAl

Might these 2 (frames) be the A350-900 (HighGrossWeight versions) that DL will need to use on it's "longest mile route" flight ATL-JNB when it returns in mid December 2020? The current 13 SHOULD be able to do the eastbound segment (as because of the earths rotation - distance is less, and also landing at a high altitude airport like JNB shouldn't be a game changer).