Chapter 1
Fatigue
Gentler than its type
How short were its legs?
Utilization isn’t graded for N400DD: too few of its flights were tracked to count its use fairly, in the full report too. So its free chapter here is Fatigue, which doesn’t depend on catching every flight.
More hours for each landing, so fewer pressurization cycles for its time in the air.
Hours per landingLead measure. 86th percentile
Middle 1.2N400DD0.52+1.5 : 1middle Premier I 1.2 : 1
Short hops5th percentile
Middle 47%N400DD0%80%+19%middle Premier I 47%
Leg length88th percentile
Middle 320 nmN400DD0 nm700 nm+500 nmmiddle Premier I 320 nm