Originally Posted by
Pineapple Guy
Sailingfun's data is only block hours.
It doesn't count credit time, vacation time, sick leave, training, or green slip pay, all of which are built into the 87 number.
If the typical guy has 5 hrs of credit a month, 120 hours of sick leave annually, 100 hours of vacation time annually, 10 hours of CQ annually and 80 hours of initial training every few years, that adds up to 25+ hours/month on average. Throw in a couple of green slips per year, and you're there.
As discussed before, MIT has no metric to breakout international 3 and 4 pilot operations. So when the math is done a 2 pilot SW rotation worth 20 block hours = 2 pilot flying 20 hours but at DAL a 4 pilot 20 hour rotation would would only show each pilot flying 10 hours.
The folks at MIT may be smart but their just looking at raw numbers and without data on which flight are crewed above 2 pilots (which I don't believe is reported anywhere)., the data is flawed. As I recall the formula used is (block hours flown) X (2 pilots) / total pilots. Delta does break down pilots by aircraft type so it the math could be done by fleet.