Creative DoT Data Filings

Over the years we have heard several people in the commercial aviation industry cast aspersions on the US DoT data sources.  Having modeled a lot of the agency’s data we have developed a “feel” for the data.  Our experience is that, by and large, the...
US Form 41 updated

US Form 41 updated

That really useful dataset known as Form 41 has been updated through year-end 2020. People like to criticize this source as full of holes and unreliable. Until the data shows something they like.  Regardless of your view on this data source, it remains the most...

Comparing Flight Ops Numbers

The use of DoT Form 41 data is something many analysts argue over. Is the data reliable? (Sometimes) Do the airlines report the data honestly? (We hope) Is there reason to doubt the numbers (More often than anyone likes).   Even with these caveats, Airbus and Boeing...