@roger,
I was concerned about the cost of not flying..they have to pay hotel accomodation whilst not recieving income.
Quote:Every ship has its best altitude, and a commercial airliner below 10,000 feet might have to kick out passengers to make room for the extra fuel.
No, it might be bumpy but there is no reason an engine cant be trimmed for below 10,000, it is just not the most economical but they could pass the cost on to the passengers like they always do.
Quote:They probably couldn't maintain some required separation of flights at that altitude
Separation could be aided by going only one way between cities, making circular routes. Say Berlin to Rome, Rome to Paris, Paris to Berlin. The military do it all the time...you make an aerial highway.
They can not keep planes grounded for months.