Franek Grabowski,
Welcome aboard !
If there is nothing sensitive about your request, suggest you put it on Open Post - you will not be "stealing the Vengeance Thread" (there is no such thing !) There is only the "Pilot's Brevet" Thread, and our Moderators (bless them) allow us "old hairies" very wide scope on it.
And by throwing it open, you may well attract replies from all over the world from people who know far more than I about what you want to know.
If I do not see anything on this Thread from you by 2359 BST 30/8/18, I will PM you about a private contact.
Danny.
Last edited by Danny42C; 26th Aug 2018 at 17:38.
Reason: Duplication !