Well, this sort of brings me back to my original question: on FE, to travel the shortest possible distance between Chile and NZ in 11.5hrs requires an average speed of about 1650 mph. **How is this possible in a 747 with average cruising speed 600mph?**

And yes I realise these figures are slightly different this time round - the original was based on my estimation of 18000 miles, these are based on your estimation of 19000.

Also, please note we have STILL not made any reference to round earth.

To reiterate: on FE, how can you travel 19000 miles in 11.5hrs?