I have a close family member who flys airliners. He routinely laments having to burn up thousands of pounds of fuel on the ramp to adjust changes to the landing weight projections by dispatch and from over fueling. The amount of waste in a single error (and they are not that infrequent) is enough to heat my house for a year… and I live within 200 miles of the arctic circle. I mean, burning 1000 gallons of fancy diesel once in a while is a rounding error for jetliner operations, but still, it’s absurd that that is the best solution.
It's unfortunate the fuel can't be siphoned back out and used. I wonder why that is; I suspect if it were possible, it'd be happening.
Also worth noting, tangentially, though - the reason planes are fueled as they are is because if you run out of fuel in a car, you're just stranded. In an airplane, you're quite possibly dead. If you only load the plane with exactly as much fuel as it needs to get to its destination, you run the risk of not having enough to safely divert.
On the other hand, planes also have maximum landing weights, so a plane which must divert or land in an emergency often has to dump fuel for a while first. That's more unusual and not something you can easily plan for, but it's part of the problem too.
I can't see the fuel being able to be reused for aviation once it's been outside the stewardship of the fuel company, but how about draining it out and selling it or even giving it away - if for nothing else for CO2 reasons
Aviation fuel is taxed specially and is sometimes dyed to make it difficult to do this. Jet fuel itself is basically just diesel/kerosene, though, so if any is left over it can just be used for the next flight.
K0balt · · focus · HN ↗
ivraatiems · · focus · HN ↗
Also worth noting, tangentially, though - the reason planes are fueled as they are is because if you run out of fuel in a car, you're just stranded. In an airplane, you're quite possibly dead. If you only load the plane with exactly as much fuel as it needs to get to its destination, you run the risk of not having enough to safely divert.
On the other hand, planes also have maximum landing weights, so a plane which must divert or land in an emergency often has to dump fuel for a while first. That's more unusual and not something you can easily plan for, but it's part of the problem too.
oivaksef · · focus · HN ↗
SR2Z · · focus · HN ↗