Thank you folks--very interesting.
I can't help wondering however why someone has not had the brain-wave of a pointy end to save fuel. Someone must have had a brain-wave over winglets for example. Or with such a big thing would any fuel saving be marginal?
By the way am I right in thinking Jumbos don't fly very high. On trips to New Zealand I have never seen a height greater than 11277 metres. Is there a technical reason for this?
Please/thanks
