Originally Posted by
PAXboy
The person who dreamed it up has software to sell that will, allegedly, save the carrier money ... real life is not always as salesmen see it.
In that previous life of mine, when we worked on males/females/kids, the check-in staff worked on nominal weights also, I took on additional duties and one of those was comparing our guesstimated weights against the actual loadsheet weights and over the course of a season we were able to tweek and reduce our nominal weights by perhaps 2kg per passenger.
But, on a Y148 aircraft, on a 4 hour sector, reducing the guesstimated payload by 2kg per passenger, 296kg in total, would reduce the amount of fuel required by just 40kg which, in turn, would reduce fuel burn by just 6kg when the truth of the matter is that whatever the fuel figure is on the CFP the Captain rounds it up the next round figure, no fuel would be saved whatsoever.