Dream Land
Staying at cruise level seriously compromises your Time of Useful Consciousness in the event of a decompression.
A descent to FL 250 or there abouts is a much safer option.
Why bother to divert to Ireland (3rd scenario) when you have already been at greater risk by staying at high level? You might as well descend to FL250 and continue to destination, by that time the fuel penalty will be minimal anyway.
Last edited by Sir Richard; 7th December 2007 at 13:22.