ATC to use HF, full Met office including qualified Forecaster to be set up.
Alternate likely to be Walvis Bay Namibia.
PNR decision based on actual met and forcast will be an exciting modus operanda, with the orographic fog that arrives at a moments notice.
Vast amounts to be spent on Rescue services including full inshore lifeboat, ribs and rescue helicopter.
Capetown to the Island @1800nm
Island to Walvis bay @ 1300 nm So 3100nm nil wind a long way
B738 the preferred kit with reduced load.
Thats the rumour
happy days
Should make a great Discovery Channel film....