What a delightful set of replies from educated 'very' professional people.
With language/aggression like that, you sound no better than a common thug.
It was a perfectly reasonable question from someone with an interest in aviation and genuine concern for peoples safety - he was simply asking a question to someone who would know.
To berate in such a condescending manner is shameful - and if you were a pilot yourself, i would not want to be on your aircraft with that mentality.
It makes you wonder sometimes......
Enjoy your plane watching m-c-s, and well done for replying in a respectful and much more suitable way Flexible Response