`  Stefan, be aware that Bill Bzuk has made a retirement  cottage industry out of ' coffee table aircraft buff conspiracy books' to quote Melvin Conant. His seriously flawed article on the Avro Arrow can't be improved , as as he rolls back any documented research that disagrees with his ``buff books``. Avro Arrow is the ONLY aircraft article on Wiki with ``political``, ``Black Friday``, ``airplane models,`` & other assorted 'junk.'  Ignore him if you can. Reasoning with him is pointless. Don't let him drive crazy. thx  `