Originally Posted by
bmwe92fan
My data is a bit old (from when I worked in the industry) but IIRC they track the time that the aircraft was pressurized -- and for widebodies the average utilization was about 50% of the day (sometimes higher), and for narrow bodies it was a bit less -- more like 40%
Yep. Narrowbody "airborne" utliization would be around 10 hours, while the widebodies would be 12.5 or so.