I have logged many thousands of hours on single duty period legs with over 8 hours in my seat. I know that the regs have changed since I retired, but I am sure that there are still airlines flying with old 747-100s or DC-10s that require a Flight Engineer.

Some of the best airline flying that I have ever done was LAX-OGG turns on the DC-8 and DC-10. Round trip was 10.5 hours block time, with a 12:45 scheduled duty day. Block out at 11:00, Block back in at Lax at 22:30. Do this on Tuesdays and Thursdays for the month and that is eight flying days for 85 hours flight time, and never spend a night away from home (I lived 15 minutes from the employee parking lot).

Joe