It's worth pointing out that Airbus has a large presence in France and Ocaml is from a French research institution (INRIA). I highly doubt that's a coincidence.
Objective Caml is not the only interesting thing to come out of there.
For a real eye opener, look through the current list of research topics at INRIA. I have (mis)spent hours reading the published papers and source code from some of their projects.
Disclosure: Ocaml is my favorite language by far.