Many other websites for simulations or frameworks have a simple link to a page that contains the licensing agreement for their software; e.g., http://www.openeaagles.org/wiki/doku.php?id=license.. I have combed the FlightGear web site and its forum for such a link with such a statement. I have not found one.
Does such a link exist? I have seen the policy document at http://www.flightgear.org/flightgear-policy-document/. This does not satisfy as a legal statement for what I can do with the software. I have seen an indirect statement about LGPLv2 in a document that discusses a commercial knock-off of FlightGear. Again, this does not satisfy as legal statement.