jayunited wrote:Are you saying if Delta were to switch this flight from ATL over to EWR they could go completely full out of JNB and still have ZFW remaining to carry cargo?
No the numbers I did would not carry cargo out of JNB, the winds I got when I ran the plan had over 30 kts average headwind. The flight time from JNB or CPT to ATL was almost identical, just CPT allowed takeoff at 280 tonnes and not 270 tonnes from JNB, so CPT could take possibly 10t cargo.
CPT to EWR was about 45 faster than CPT to ATL (average headwind just over 20 kts), probably a cargo capability of around 16 tonnes there.