Loose Nut:
Thanks for your reply and everyone else who has taken time to respond. I think you have read an earlier report but one which sounds as if the same problem occurred so your comments are also relevent to me. Luckily my wife was not with me that day but everyone who was has been very supportive and wish me to continue as pic.
Sorry, mate! I looked up the site and a Gazelle crash in July and just assumed that G-HAVA was yours. Which one should I have been looking at?