Low Atmospheric Air Pressure


#1

On a recent flight, passengers on a flight from Newcastle to Sharm el Sheikh were informed that due to ‘low air pressure’ they would have to refuel in Crete en-route.
Why is this?
As a complete novice, I would have thought that with low atmospheric air pressure, the aeroplane would be under less force, thereby making it easier to ‘stay’ in the air, thereby making the flight more fuel efficient ???

Or is this to do with…with the increase in altitude, the density of air decreases. The reduced density means a lower number of air molecules entering the core engine. For the fuel/air mixture to maintain its stoichiometric ratio, the required number of fuel molecules must decrease to cater for the decreased number of air molecules.

Thanks for any replies.


#2

What exactly did the pilot say?


#3

…‘that due to low atmospheric air pressure, we will have to refuel in Crete en-route’


#4

Sounds like a good enough excuse for not having enough fuel on board. The self loading cargo will buy anything.


#5

hahaha…yes, I guess they will…however, this was announced even before the plane departed from the stand.


#6

By the way your last comments in your original post are correct but the difference would be minimal. Temperature is a bigger factor. What kind of airplane was it?


#7

What airline? I’d bet they might have had to drop off or pick up somebody or some cargo and used this as an excuse…nobody will question a fuel stop, even if it sounds like BS, but they would get upset if they are delayed for some other person…just my $.02


#8

It would also be helpful to not post the exact same question in more than one forum.